Derivative Financial Instruments and Off-balance sheet Financial Instruments
Derivative Financial Instruments and Off-balance sheet Financial Instruments
Derivative Financial Instruments and Off Balance Sheet Financial Instruments Disclosure [Text Block]
The entire disclosure of the entity's derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising there from, and the amounts of and methodologies and assumptions used in determining the amounts of such items. Also includes disclosures of off-balance-sheet financial instruments.
Accounting Policies [Abstract]
Basis of presentation
Basis of Accounting, Policy [Policy Text Block]
Risks and uncertainties
Risks And Uncertainties, Policy [Policy Text Block]
Risks And Uncertainties, Policy [Policy Text Block]
Investments
Investment, Policy [Policy Text Block]
Derivative and embedded derivative financial instruments
Derivatives, Policy [Policy Text Block]
Securities loaned
Securities Borrowed and Loaned Policy [Policy Text Block]
Recognition of premium revenues and contract charges, and related benefits and interest credited
Insurance Premiums Revenue and Related Benefits Recognition [Policy Text Block]
Describes an insurance entity's accounting policy for premium and contract charges revenue recognition, including the basis for measurement and the timing of recognition of revenue from insurance premiums and fees received from contractholders. Also describes an insurance entity's accounting policy for recognition of related benefits expenses and interest credited to contract holder accounts.
Deferred policy acquisition and sales inducement costs
Deferred Policy Acquisition and Sales Inducement Costs [Policy Text Block]
Describes an insurance entity's accounting policy for deferred policy acquisition costs, including the nature, type, and amount of capitalized costs incurred to write or acquire insurance contracts, and the basis for and methodologies applied in capitalizing and amortizing such costs. Also describes the accounting policy for sales inducements, including the yield enhancement features, such as interest credits and bonuses, given to motivate purchases of insurance products, and description of the nature of the costs deferred and the method for amortizing such deferred costs.
Reinsurance and Indemnification
Reinsurance Accounting Policy [Policy Text Block]
Goodwill
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]
Intangible assets, finite-lived
Intangible Assets, Finite-Lived, Policy [Policy Text Block]
Intangible assets, indefinite-lived
Goodwill and Intangible Assets, Intangible Assets, Indefinite-Lived, Policy [Policy Text Block]
Property and equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Income taxes
Income Tax, Policy [Policy Text Block]
Reserves for property-liability insurance claims and claims expense and life-contingent contract benefits
Reserve for Property Liability and Future Policy Benefits [Policy Text Block]
Describes the accounting policy for amounts needed to provide for the estimated ultimate cost of settling property insurance claims relating to insured events that have occurred on or before a particular date (ordinarily, the statement of financial position date). Also describes the accounting policy for an insurance entity's net liability for future benefits (for example, death, cash surrender value) to be paid to or on behalf of policyholders, describing the bases, methodologies and components of the reserve, and assumptions regarding estimates of expected investment yields, mortality, morbidity, terminations and expenses.
Contractholder funds
Deposit Contracts [Policy Text Block]
Describes the accounting policy for the treatment of funds received from or paid to insureds, insurers and reinsurers on contracts for which the criteria for transferring or assuming insurance risk has not been satisfied by the insurer or reinsurer.
Separate accounts
Policyholder Accounts [Policy Text Block]
Describes the accounting policy for contracts reported in separate accounts, including the extent and terms of minimum guarantees, basis of presentation for separate account assets and liabilities and related separate account activity, the liability valuation method and assumptions used in valuing each type of policyholder and contract holder account maintained by the entity.
Legal contingencies
Legal Costs, Policy [Policy Text Block]
Equity incentive plans
Share-based Payment Arrangement [Policy Text Block]
Off-balance sheet financial instruments
Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block]
Consolidation of variable interest entities ("VIEs")
Consolidation, Variable Interest Entity, Policy [Policy Text Block]
Foreign currency translation
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Earnings per common share
Earnings Per Share, Policy [Policy Text Block]
Accounting standards
New Accounting Pronouncements, Policy [Policy Text Block]
Change in accounting principle
Change in Accounting Principle, Policy [Policy Text Block]
Change in Accounting Principle, Policy [Policy Text Block]
Retirement Benefits [Abstract]
Schedule of Defined Benefit Plans Disclosures [Table]
Schedule of Defined Benefit Plans Disclosures [Table]
Retirement Plan Type [Axis]
Retirement Plan Type [Axis]
Retirement Plan Type [Domain]
Retirement Plan Type [Domain]
Pension benefits
Pension Plan [Member]
Postretirement benefits
Other Postretirement Benefits Plan [Member]
Components of net periodic cost
Defined Benefit Plan Disclosure [Line Items]
Estimates of the net actuarial loss (gain) and prior service credit expected to be recognized as a component of net periodic benefit cost during 2015
Defined Benefit Plan, Expected Amortization, Next Fiscal Year [Abstract]
Prior service credit
Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year
Capital Structure
Capital Structure
Capital Structure Disclosure [Text Block]
The entire disclosure on debt and capital stock. The disclosure on debt includes information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. Also includes the entire disclosure on preferred stock for terms, amounts, nature of changes, rights and privileges, dividends, and other matters related to preferred stock.
Reserve for Property-Liability Insurance Claims and Claims Expense
Short-duration Insurance Contracts, Claims Development [Table]
Short-duration Insurance Contracts, Claims Development [Table]
Insurance Product Line [Axis]
Product and Service [Axis]
Insurance Product Line [Domain]
Product and Service [Domain]
Auto
Auto Insurance, Liability Coverage [Member]
Auto Insurance, Liability Coverage [Member]
Auto insurance - physical damage coverage
Auto Insurance, Physical Damage Coverage [Member]
Auto Insurance, Physical Damage Coverage [Member]
Homeowners
Home Owners [Member]
Represents homeowners insurance to individuals in United States and Canada.
Claims Development [Line Items]
Claims Development [Line Items]
1 year
Short-duration Insurance Contracts, Historical Claims Duration, Year One
2 years
Short-duration Insurance Contracts, Historical Claims Duration, Year Two
3 years
Short-duration Insurance Contracts, Historical Claims Duration, Year Three
4 years
Short-duration Insurance Contracts, Historical Claims Duration, Year Four
5 years
Short-duration Insurance Contracts, Historical Claims Duration, Year Five
Quarterly Financial Information Disclosure [Abstract]
New Accounting Pronouncements or Change in Accounting Principle [Table]
New Accounting Pronouncements or Change in Accounting Principle [Table]
Adjustments for Change in Accounting Principle [Axis]
Adjustments for Change in Accounting Principle [Axis]
Adjustments for Change in Accounting Principle [Domain]
Adjustments for Change in Accounting Principle [Domain]
Impact of change
Change in Recognizing Actuarial Gains and Losses and Expected Return on Plan Assets [Member]
Change in Recognizing Actuarial Gains and Losses and Expected Return on Plan Assets [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues
Revenues
Net income (loss) applicable to common shareholders
Net Income (Loss) Available to Common Stockholders, Basic
Earnings per common share - Basic (in dollars per share)
Earnings Per Share, Basic
Earnings per common share - Diluted (in dollars per share)
Earnings Per Share, Diluted
Reinsurance Disclosures [Abstract]
Reinsurance Retention Policy [Table]
Reinsurance Retention Policy [Table]
Ceded Credit Risk, Reinsurer [Axis]
Ceded Credit Risk, Reinsurer [Axis]
Ceded Credit Risk, Reinsurer [Domain]
Ceded Credit Risk, Reinsurer [Domain]
Sanders Re 2014-2 contract
Sanders Re 2014-2 Contract [Member]
Sanders Re 2014-2 Contract [Member]
Reinsurance Retention Policy [Line Items]
Reinsurance Retention Policy [Line Items]
Term of catastrophe reinsurance agreement contract
Catastrophe Reinsurance Agreement Contract, Term
Represents the period of catastrophe reinsurance agreement contract.
Limit of aggregate losses under aggregate excess agreement
Catastrophe Reinsurance Aggregate Loss Limit Per Contract Year
The limit of aggregated losses per contract year beyond which coverage provided by an aggregate excess agreement applies.
Retention amount for catastrophe reinsurance agreement contracts
Catastrophe Reinsurance Agreement Contracts, Retention Amount
Represents the retention amount of catastrophe reinsurance agreement contracts.
Business Combinations [Abstract]
Acquisitions
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Unrealized net capital gains and losses
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Unrealized foreign currency translation adjustments
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Unamortized pension and other postretirement prior service credit
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Pre-tax
Other Comprehensive Income (Loss), before Tax [Abstract]
Unrealized net holding during the period
Other Comprehensive Income (Loss), before Reclassifications, before Tax
Less: reclassification adjustment
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax
Other comprehensive income (loss)
Other Comprehensive Income (Loss), before Tax
Tax
Other Comprehensive Income (Loss), Tax [Abstract]
Unrealized net holding during the period
Other Comprehensive Income (Loss) before Reclassifications, Tax
Less: reclassification adjustment
Reclassification from AOCI, Current Period, Tax
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Tax
After-tax
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Unrealized net holding during the period
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Less: reclassification adjustment
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract]
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Table]
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Table]
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Allstate Protection
All State Protection [Member]
Allstate Protection comprises two brands, the Allstate brand and Encompass brand.
Discontinued Lines and Coverages
Discontinued Lines and Coverages [Member]
Represents discontinued lines and coverages segment.
Property-Liability
Property Liability [Member]
Property-liability segment includes the Allstate Protection and the discontinued lines and coverage segments.
Service Businesses
Service Business [Member]
Service Business [Member]
Allstate Life
Allstate Life [Member]
Allstate Life [Member]
Allstate Benefits
Allstate Benefits [Member]
Allstate Benefits [Member]
Allstate Annuities
Allstate Annuities [Member]
Allstate Annuities [Member]
Corporate and Other
Corporate and Other [Member]
Consolidation Items [Axis]
Consolidation Items [Axis]
Consolidation Items [Domain]
Consolidation Items [Domain]
Operating Segments
Operating Segments [Member]
Intersegment Eliminations (2)
Intersegment Eliminations [Member]
Supplementary Insurance Information
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
Deferred policy acquisition costs
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost
Reserves for claims and claims expense, contract benefits and contractholder funds
Supplementary Insurance Information, Liability for Future Policy Benefits, Losses, Claims, Loss, Expense Reserves and Contractholder Funds
Amount of reserves for future policy claims payable and loss expenses to be incurred, and the liability as of the balance sheet date to the policyholders for deposits held under the terms of insurance contracts.
Unearned premiums
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Unearned Premium
Premium revenue and contract charges
Supplementary Insurance Information Premium Revenue and Contract Charges
Amount of premium revenue earned. Also includes an amount that an insurer adds to a policy's premium, or deducts from a policy's cash value or contract holder's account, as compensation for services rendered (may include fees), after subtracting any amounts ceded to another insurer.
Net investment income
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income
Claims and claims expense, contract benefits and interest credited to contractholders
Supplementary Insurance Information, Benefits Claims, Losses Settlement Expense and Interest Credited to Policyholders Account Balances
Amount of insurance benefits, claims, losses and settlement expenses incurred, plus interest allocated to policyholders holding contracts under which the insurer must provide a guaranteed yield.
Amortization of deferred policy acquisition costs
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost
Other operating costs and expenses
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense
Premiums written (excluding life)
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Written
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information
Cash Flow, Supplemental Disclosures [Text Block]
Statement of Cash Flows [Abstract]
Cash flows from operating activities
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income
Net Income (Loss) Attributable to Parent
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation, amortization and other non-cash items
Depreciation, Amortization and Accretion, Net
Realized capital gains and losses
Realized Investment Gains (Losses)
Pension and other postretirement remeasurement gains and losses
Defined Benefit Plan, Remeasurement Gain (Loss)
Defined Benefit Plan, Remeasurement Gain (Loss)
Gain on disposition of operations
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal
Interest credited to contractholder funds
Policyholder Account Balance, Interest Expense
Impairment of goodwill and purchased intangibles
Goodwill, Impairment Loss
Changes in:
Increase (Decrease) in Operating Capital [Abstract]
Policy benefits and other insurance reserves
Increase (Decrease) in Future Policy Benefit Reserves and Other Insurance Liabilities
Unearned premiums
Increase (Decrease) in Unearned Premiums
Deferred policy acquisition costs
Increase (Decrease) in Deferred Policy Acquisition Costs
Premium installment receivables, net
Increase (Decrease) in Premiums Receivable
Reinsurance recoverables, net
Increase (Decrease) in Reinsurance Recoverable
Income taxes
Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable
Other operating assets and liabilities
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Cash flows from investing activities
Net Cash Provided by (Used in) Investing Activities [Abstract]
Proceeds from sales
Proceeds from Sale of Investments [Abstract]
Fixed income securities
Proceeds from Sale of Debt Securities, Available-for-sale
Equity securities
Proceeds from Sale of Equity Securities, FV-NI
Proceeds from Sale of Equity Securities, FV-NI
Limited partnership interests
Proceeds from Divestiture of Interest in Subsidiaries and Affiliates
Other investments
Proceeds from Sale of Other Investments
Investment collections
Proceeds from Collection of Investments [Abstract]
Fixed income securities
Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale
Mortgage loans
Proceeds from Collection of Mortgage Loans
The cash inflow from collections of repayments from borrowers on loans that are secured with real estate mortgages.
Other investments
Proceeds from Maturities, Prepayments and Calls of Other Investments
Investment purchases
Payments to Acquire Investments [Abstract]
Fixed income securities
Payments to Acquire Debt Securities, Available-for-sale
Equity securities
Payments to Acquire Equity Securities, FV-NI
Payments to Acquire Equity Securities, FV-NI
Limited partnership interests
Payments to Acquire Interest in Subsidiaries and Affiliates
Mortgage loans
Payments to Purchase Mortgage Loans
The cash outflow used to purchase loans that are secured with real estate mortgage.
Other investments
Payments to Acquire Other Investments
Change in short-term investments, net
Payments for (Proceeds from) Short-term Investments
Change in other investments, net
Payments for (Proceeds from) Other Investing Activities
Purchases of property and equipment, net
Payments to Acquire Property, Plant, and Equipment
Acquisition of operations
Payments To Acquire Operations
Payments To Acquire Operations
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Cash flows from financing activities
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from issuance of long-term debt
Proceeds from Issuance of Long-term Debt
Redemption and repayment of long-term debt
Repayments of Long-term Debt
Proceeds from issuance of preferred stock
Proceeds from Issuance of Preferred Stock and Preference Stock
Redemption of preferred stock
Payments for Repurchase of Preferred Stock and Preference Stock
Contractholder fund deposits
Additions to Contract Holders Funds
Contractholder fund withdrawals
Withdrawal from Contract Holders Funds
Dividends paid on common stock
Payments of Ordinary Dividends, Common Stock
Dividends paid on preferred stock
Payments of Ordinary Dividends, Preferred Stock and Preference Stock
Treasury stock purchases
Payments for Repurchase of Common Stock
Shares reissued under equity incentive plans, net
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised
Other
Proceeds from (Payments for) Other Financing Activities
Net cash used in financing activities
Net Cash Provided by (Used in) Financing Activities
Net (decrease) increase in cash
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Cash at beginning of year
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Cash at end of year
Investments [Abstract]
Investment Income [Table]
Investment Income [Table]
Financial Instrument [Axis]
Financial Instrument [Axis]
Financial Instruments [Domain]
Financial Instruments [Domain]
Fixed income securities
Fixed Income Securities [Member]
Equity securities
Equity Securities [Member]
Mortgage loans
Mortgages [Member]
Limited partnership interests
Partnership Interest [Member]
Short-term investments
Short-term Investments [Member]
Other
Other than Securities Investment [Member]
Net investment income
Net Investment Income [Line Items]
Short-term investments
Other Short-term Investments
Investment income, before expense
Interest and Dividend Income, Operating
Investment expense
Investment Income, Investment Expense
Net investment income
Net Investment Income
Schedule of Gain (Loss) on Securities [Table]
Schedule of Gain (Loss) on Securities [Table]
Municipal
US States and Political Subdivisions Debt Securities [Member]
Corporate
Corporate Debt Securities [Member]
ABS
Asset-backed Securities [Member]
MBS
Collateralized Mortgage Backed Securities [Member]
Other-than-temporary impairment losses by asset type
Other than Temporary Impairment Losses by Asset Type [Line Items]
Gross
Other than Temporary Impairment Losses, Investments
Included in OCI
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Loss, before Tax, Portion Attributable to Parent
Other-than-temporary Impairment Loss, Debt Securities And Other, Portion Recognized in Earnings
Other-than-temporary Impairment Loss, Debt Securities And Other, Portion Recognized in Earnings
Other-than-temporary Impairment Loss, Debt Securities And Other, Portion Recognized in Earnings
Net
Other-than-temporary Impairment Loss, Debt Securities, Portion Recognized in Earnings
Net
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Loss, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Available-for-sale Securities
Change in benefit obligation
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning of year
Defined Benefit Plan, Benefit Obligation
Service cost
Defined Benefit Plan, Service Cost
Interest cost
Defined Benefit Plan, Interest Cost
Participant contributions
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant
Actuarial (gain) loss
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)
Benefits paid
Defined Benefit Plan, Benefit Obligation, Benefits Paid
Translation adjustment and other
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)
Benefit obligation, end of year
Change in pension plan assets
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of year
Defined Benefit Plan, Plan Assets, Amount
Actual return on plan assets
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)
Employer contribution
Defined Benefit Plan, Plan Assets, Contributions by Employer
Benefits paid
Defined Benefit Plan, Plan Assets, Benefits Paid
Translation adjustment and other
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)
Funded status
Defined Benefit Plan, Funded (Unfunded) Status of Plan
Fair value of plan assets, end of year
Prior service credit
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax
Unamortized pension and other postretirement prior service credit
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax
Commitments and Contingencies Disclosure [Abstract]
Loss Contingencies [Table]
Loss Contingencies [Table]
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
Guaranty Funds
Guaranty Funds [Member]
Represents state insurance guaranty funds.
Texas Fair Plan Association
Texas Fair Plan Association [Member]
Texas Fair Plan Association [Member]
Loss Contingencies
Loss Contingencies [Line Items]
Portion of assessment
Portion of Assessment, Amount
Portion of Assessment, Amount
Liability for insurance assessments
Loss Contingency, Undiscounted Amount of Insurance-related Assessment Liability
Liability for claims
Liability for Claims and Claims Adjustment Expense, Property Casualty Liability
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities
Fair Value Disclosures [Text Block]
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Segment Reporting Information
Segment Reporting Information [Line Items]
Total income tax expense
Income Tax Expense (Benefit)
Statement of Comprehensive Income [Abstract]
Other comprehensive income (loss), after-tax
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Changes in:
Changes in [Abstract]
Unrealized net capital gains and losses
Other Comprehensive Income (Loss), Available for Sale Securities, Including Other than Temporary Impairment Losses Adjustment Net of Tax
Net of tax amount of the appreciation (loss) in the value of unsold available-for-sale securities. Includes amounts related to other than temporary impairment (OTTI) losses.
Unrealized foreign currency translation adjustments
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Unamortized pension and other postretirement prior service credit
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Other comprehensive income (loss), after-tax
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Other comprehensive income (loss) on a pre-tax and after-tax basis
Comprehensive Income (Loss) [Table Text Block]
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Measurement Basis [Axis]
Measurement Basis [Axis]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Portion at Fair Value Measurement
Portion at Fair Value Measurement [Member]
Fair value
Estimate of Fair Value Measurement [Member]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Measurement Frequency [Domain]
Measurement Frequency [Domain]
Recurring
Fair Value, Recurring [Member]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Quoted prices in active markets for identical assets (Level 1)
Fair Value, Inputs, Level 1 [Member]
Significant other observable inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Significant unobservable inputs (Level 3)
Fair Value, Inputs, Level 3 [Member]
Investments reported at NAV
Fair Value Measured at Net Asset Value Per Share [Member]
U.S. government and agencies
US Treasury and Government [Member]
Corporate - public
Corporate Debt Securities, Public [Member]
Corporate Debt Securities, Public [Member]
Corporate - privately placed
Corporate Debt Securities, Private Placement [Member]
Corporate Debt Securities, Private Placement [Member]
Foreign government
Debt Security, Government, Non-US [Member]
Fair value of assets and liabilities measured on recurring and non-recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets
Assets, Fair Value Disclosure [Abstract]
Fixed income securities
Debt Securities, Available-for-sale
Equity securities
Equity Securities, FV-NI
Other investments: Free-standing derivatives
Free Standing Derivative Assets, Fair Value Disclosure
Represents the fair values as of the balance sheet date of all assets resulting from free-standing derivative contracts.
Other investments: Free-standing derivatives, Counterparty and cash collateral netting
Free Standing Derivative Assets, Derivative Asset, Fair Value, Gross Asset and Right to Reclaim Cash, Offset
Free Standing Derivative Assets, Derivative Asset, Fair Value, Gross Asset and Right to Reclaim Cash, Offset
Separate account assets
Separate Account Asset
Other assets
Other Assets, Fair Value Disclosure
Total assets at fair value
Assets, Fair Value Disclosure
Counterparty and cash collateral netting
Derivative Asset Counterparty Netting and Collateral Obligation To Return Cash Offset
Represents the amount of counterparty netting and the amount of obligation to return cash collateral under master netting arrangements offset against derivative assets.
Derivative Asset Net of Offsets and Securities Collateral
Derivative Asset Net of Offsets and Securities Collateral
Represents the amount of derivative assets, net of offsets under the master netting arrangements and net of securities collateral.
Assets as a percent of assets measured at fair value
Assets as Percent of Assets Measured at Fair Value
Assets as a percent of total assets measured at fair value on a recurring and non-recurring basis.
Investments measured using the net asset value practical expedient
Alternative Investment
Total
Investments, Fair Value Disclosure
Liabilities
Liabilities, Fair Value Disclosure [Abstract]
Contractholder funds: Derivatives embedded in life and annuity contracts
Embedded Derivative, Fair Value of Embedded Derivative Liability
Other liabilities: Free-standing derivatives
Free Standing Derivative Liabilities, Fair Value Disclosure
Represents the fair values as of the balance sheet date of all liabilities resulting from free-standing derivative contracts.
Total liabilities at fair value
Financial and Nonfinancial Liabilities, Fair Value Disclosure
Counterparty and cash collateral netting
Derivative Liability Counterparty Netting and Collateral Right To Reclaim Cash Offset
Represents the amount of counterparty netting and the amount of right to receive cash collateral under master netting arrangements offset against derivative liabilities.
Liabilities as a percent of liabilities measured at fair value
Liabilities as Percent of Liabilities Measured at Fair Value
Liabilities as a percent of total liabilities measured at fair value on a recurring and non-recurring basis.
Scenario [Axis]
Scenario [Axis]
Scenario [Domain]
Scenario [Domain]
Forecast
Forecast [Member]
Florida Hurricane Catastrophe Fund
Florida Hurricane Catastrophe Fund [Member]
Represents the Florida Hurricane Catastrophe Fund.
Emergency assessment maximum percentage of premiums first year
Emergency Assessment Maximum Percentage of Premiums First Year
The maximum emergency assessment as a premium of all eligible property and casualty premiums in the state, for the payment of bonds issued to provide reimbursements for losses related to mandatory coverage, in the first year that such bonding is required.
Emergency assessment maximum percentage of premiums subsequent years
Emergency Assessment Maximum Percentage of Premiums Subsequent Years
The maximum emergency assessment as a premium of all eligible property and casualty premiums in the state, for the payment of bonds issued to provide reimbursements for losses related to mandatory coverage, in the second and subsequent years that such bonding is required.
Emergency assessment, bonds issued
Emergency Assessment, Bonds Issued
The amount of bonds issued subject to funding through emergency assessments on property and casualty premiums.
Emergency assessment maximum percentage of premiums subsequent years, FL OIR
Emergency Assessment Maximum Percentage of Premiums Subsequent Years, FL
Emergency Assessment Maximum Percentage of Premiums Subsequent Years, FL OIR
Ceded premium earned
Ceded Premiums Earned
Ceded losses incurred
Reinsurance Ceded Amount
Represents the amount of reinsurance ceded under various contracts.
Percent of losses in excess of retention level to be reimbursed
Percent of Losses in Excess of Retention Level Reimbursable
The percentage of losses exceeding the entity's retention level for which access to reimbursement is provided.
Retention level for losses related to 2 largest hurricanes
Reinsurance Retention Level, Largest Catastrophes
The entity's retention level for personal property losses related to the largest identified catastrophes.
Number of storms
Number of Storms
Number of Storms
Retention level for losses related to other hurricanes
Reinsurance Retention Level, Other Catastrophes
The entity's retention level for personal property losses related to catastrophes other than the largest identified.
Maximum Retention level for losses related to hurricanes
Reinsurance Retention Level Catastrophes, Maximum
The entity's maximum retention level for personal property losses related to catastrophes related to largest identified and others.
Reinsurance and indemnification recoverables, net
Reinsurance Recoverables, Including Reinsurance Premium Paid
Income Statement [Abstract]
Statement [Table]
Statement [Table]
Property and casualty insurance
Property, Liability and Casualty Insurance Product Line [Member]
Life insurance
Life Insurance Product Line [Member]
Other revenue
Product and Service, Other [Member]
Statement
Statement [Line Items]
Revenues
Revenues [Abstract]
Premiums earned
Premiums Earned, Net
Insurance commissions and fees
Insurance Commissions and Fees
Net investment income
Realized capital gains and losses:
Realized Investment Gains (Losses) [Abstract]
Total other-than-temporary impairment (“OTTI”) losses
OTTI losses reclassified to (from) other comprehensive income (OCI)
Net OTTI losses recognized in earnings
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net
Sales and valuation changes on equity investments and derivatives
Other Realized Capital Gains and Losses
The net realized gains or losses on investments during the period, other than those related to other-than-temporary impairment losses.
Total realized capital gains and losses
Total revenues
Costs and expenses
Benefits, Losses and Expenses [Abstract]
Property and casualty insurance claims and claims expense (net of reinsurance ceded and indemnification programs of $524, $1,378 and $1,807)
Policyholder Benefits and Claims Incurred, Net, Property, Casualty and Liability
Life contract benefits (net of reinsurance ceded of $165, $240 and $179)
Life and Annuity Contract Benefits, Net of Reinsurance Recoveries
Provision for benefits, claims and claims settlement expenses incurred during the period for life and annuity insurance contracts, as well as accident and health insurance contracts, net of the effects of contracts assumed and ceded.
Interest credited to contractholder funds (net of reinsurance ceded of $20, $24 and $25)
Amortization of deferred policy acquisition costs
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Amortization
Operating costs and expenses
Other Cost and Expense, Operating
Pension and other postretirement remeasurement gains and losses
Defined Benefit Plan, Actuarial Gain (Loss), Immediate Recognition as Component in Net Periodic Benefit (Cost) Credit
Restructuring and related charges
Restructuring Charges
Amortization of purchased intangibles
Amortization of Intangible Assets
Impairment of goodwill and purchased intangibles
Goodwill and Intangible Asset Impairment
Interest expense
Interest Expense
Total costs and expenses
Benefits, Losses and Expenses
Gain on disposition of operations
Income from operations before income tax expense
Income (Loss) from Operations before Income Tax Expense (Benefit)
Sum of operating profit and non-operating income (expense) and income (loss) from equity method investments before income taxes.
Income tax expense
Net income
Preferred stock dividends
Preferred Stock Dividends, Income Statement Impact
Net income applicable to common shareholders
Earnings per common share:
Earnings Per Share [Abstract]
Net income applicable to common shareholders earnings per common share - Basic (in dollars per share)
Weighted average common shares - Basic (in shares)
Weighted Average Number of Shares Outstanding, Basic
Net income applicable to common shareholders earnings per common share - Diluted (in dollars per share)
Weighted average common shares - Diluted (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Equity Incentive Plans [Abstract]
Equity Incentive Plans [Abstract]
Equity Incentive Plans
Share-based Payment Arrangement [Text Block]
Deferred Policy Acquisition and Sales Inducement Costs
Deferred Policy Acquisition and Sales Inducement Costs
Deferred Policy Acquisition and Sales Inducement Costs Disclosure [Text Block]
A reconciliation of deferred policy acquisition and sales inducements costs from the beginning of a period to the end of a period.
Lloyds of London
Lloyds of London [Member]
Represents the reinsurer Lloyd's of London.
Aleka Insurance Inc
Aleka Insurance Inc [Member]
Aleka Insurance Inc [Member]
Largest reinsurance recoverable from a single reinsurer
Amount of Ceded Credit Risk, Claims Receivable
Represents the amount of reported and estimated unreported claims assumed by and receivable from the identified reinsurer with respect to disclosure of a concentration of credit risk.
Allstate Annuities
Allstate Financial [Member]
Represents Allstate financial segment.
Annuities
Investment Product [Member]
Other
Other Products [Member]
Represents other products not otherwise specified in the taxonomy.
Deferred Policy Acquisition and Sales Inducement Costs [Table]
Deferred Policy Acquisition and Sales Inducement Costs [Table]
Schedule of disclosures related to deferred policy acquisition and sales inducement costs by segment.
Personal Lines [Member]
Personal Lines [Member]
Personal Lines [Member]
Interest-sensitive life insurance contract charges
Interest Sensitive Life Insurance [Member]
Represents interest sensitive life insurance coverage.
Protection Plans and Other Contracts [Member]
Protection Plans and Other Contracts [Member]
Protection Plans and Other Contracts [Member]
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Deferred Policy Acquisition and Sales Inducement Costs:
Deferred Policy Acquisition and Sales Inducement Costs [Line Items]
Securities loaned
Securities Financing Transactions [Abstract]
Securities lending transactions length
Securities Lending Transactions Term
The usual duration of the entity's securities lending transactions.
Cash collateral received as percentage of fair value of domestic securities loaned
Cash Collateral Received for Securities Loaned, Percentage, Domestic
Represents the amount of cash collateral the entity receives for domestic securities loaned, as a percentage of the fair value of the securities.
Cash collateral received as a percent of fair value of foreign securities loaned
Cash Collateral Received for Securities Loaned Percentage Foreign
Represents the amount of cash collateral the entity receives for foreign securities loaned, as a percentage of the fair value of the securities.
Deferred Policy Acquisition and Sales Inducement Costs
Deferred Policy Acquisition and Sales Inducement Costs Abstract
Property and casualty insurance contract, terms
Property And Casualty Insurance Contract, Terms
Property And Casualty Insurance Contract, Terms
Unearned premiums
Unearned Premiums
Valuation allowance for uncollectible premium installment receivables
Premium Receivable, Allowance for Credit Loss
Period for amortization of DAC for property-liability insurance
Deferred Policy Acquisition Costs, Property Liability Insurance Amortization Period
Represents the range of typical amortization periods for deferred policy acquisition costs associated with property-liability insurance.
Period for amortization of DAC and DSI for interest-sensitive life, fixed annuities and other investment contracts
Deferred Policy Acquisition and Sales Inducement Costs Interest Sensitive Life Fixed Annuities and Other Investment Contracts Amortization Period
Represents the range of typical amortization periods for deferred policy acquisition and sales inducement costs associated with interest-sensitive life, fixed annuities and other investment contracts.
Present value of future profits
Present Value of Future Insurance Profits, Net
Amortization expense of present value of future profits
Present Value of Future Insurance Profits, Amortization Expense
Derivatives
Derivative [Member]
Realized capital gains and losses by asset type
Gain (Loss) on Securities [Line Items]
Realized capital gains and losses
Investments, Debt and Equity Securities [Abstract]
Investment [Table]
Investment [Table]
Investment grade
Investment Grade Fixed Income Securities [Member]
Investment grade is defined as a security having a rating from the National Association of Insurance Commissioners ("NAIC") of 1 or 2; a rating of Aaa, Aa, A or Baa from Moody's, a rating of AAA, AA, A or BBB from Standard and Poor's, Fitch or Dominion, or aaa, aa, a or bbb from A.M. Best; or a comparable internal rating if an externally provided rating is not available.
Below investment grade
Below Investment Grade Fixed Income Securities [Member]
Below investment grade is defined as a security not meeting the criteria for investment grade securities.
Investment [Line Items]
Investment [Line Items]
Fixed income securities with unrealized loss position less than 20% of amortized cost
Available for sale Securities, Unrealized Losses Having Loss of Less than Twenty Percent
The amount of unrealized losses that are related to securities with an unrealized loss position less than 20% of cost or amortized cost.
Fixed income securities with unrealized loss position greater than or equal to 20% of amortized cost
Available for sale Securities, Unrealized Losses Having Loss of Twenty Percent or Higher
The amount of unrealized losses that are related to securities with an unrealized loss position greater than 20% of cost or amortized cost.
Total unrealized losses
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss
Available for sale securities, unrealized losses having loss of less than twenty percent, less than 12 months
Available for sale Securities, Unrealized Losses Having Loss of Less than Twenty Percent, Less than 12 Months
Available for sale Securities, Unrealized Losses Having Loss of Less than Twenty Percent, Less than 12 Months
Unrealized losses related to securities with unrealized loss position greater than 20% of cost or amortized cost, unrealized loss position of 12 or more consecutive months
Available for sale Securities, Unrealized Losses for Fixed Income Securities Held for Twelve Months or Longer Period
This item represents the excess of [amortized] cost over fair value of fixed income securities that have been in a loss position for twelve months or longer, and have unrealized loss position greater than 20% of cost or amortized cost for those securities which are categorized neither as held-to-maturity nor trading securities as of the balance sheet date.
Investment Type [Axis]
Investment Type [Axis]
Investments [Domain]
Investments [Domain]
EMA limited partnerships
Equity Method Investments [Member]
Change in Unrealized Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss)
Change in Unrealized Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) [Line Items]
Change in unrealized net capital gains and losses
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax
Amounts recognized for:
Amount Recognized in Unrealized Net Capital Gains and Losses [Abstract]
Insurance reserves
Change in Insurance Reserves Impact on Accumulated Other Comprehensive Income
Represents change in insurance reserve adjustment included in accumulated other comprehensive income (loss) during the period.
DAC and DSI
Change in Deferred Acquisition Policy Costs and Deferred Sales Inducement Cost Impact on Accumulated Other Comprehensive Income
Represents change in Deferred Policy Acquisition Costs and Deferred Sales Inducement Costs adjustment included in accumulated other comprehensive income (loss) during the period.
Amounts recognized
Increase (Decrease) in Amounts Recognized in Insurance Reserves Deferred Acquisition Policy Costs and Deferred Sales Inducement Cost in Accumulated Other Comprehensive Income
Represents change in accumulated adjustments to Deferred Policy Acquisition Costs, Deferred Sales Inducement Costs, and insurance reserves related to unrealized capital gains and losses during the period.
Deferred income taxes
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax
Increase (decrease) in unrealized net capital gains and losses, after-tax
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax
Equity securities
Available for sale Equity Securities, Unrealized Gain (Loss) Included in Other Comprehensive Income
The amount of unrealized gains (losses) included in accumulated other comprehensive income on equity securities which are categorized neither as held-to-maturity nor trading securities, as a result of fair value exceeding (under) its amortized cost, as of the balance sheet date.
Effects of reinsurance on property-liability insurance premiums written and earned and life and annuity premiums and contract charges
Schedule of Effects of Reinsurance Premiums for Insurance Companies [Table Text Block]
Schedule of the effects of reinsurance on premiums written, premiums earned and contract charges, including amounts written and earned directly by the insurer, amounts assumed from other insurers, and amounts ceded to other insurers.
Summary of retention limits by period of policy issuance
Reinsurance Retention Policy [Table Text Block]
Schedule of reinsurance premium ceded
Schedule of Reinsurance Premium Ceded [Table Text Block]
This element may be used as a single block of text to encapsulate entire disclosure, including data and tables for reinsurance premium ceded.
Summary of reinsurance recoverables on paid and unpaid benefits
Schedule of Reinsurance Recoverables [Table Text Block]
Schedule of details regarding reinsurance which is recoverable as of the balance sheet date from reinsurers for claims paid or incurred by the ceding insurer and associated claims settlement expenses, including estimated amounts for claims incurred but not reported and policy benefits, net of any related valuation allowance.
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract]
Schedule I — Summary of Investments Other than Investments in Related Parties
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Text Block]
Liability Class [Axis]
Liability Class [Axis]
Fair Value by Liability Class [Domain]
Fair Value by Liability Class [Domain]
Contractholder funds: Derivatives embedded in life and annuity contracts
Derivatives Embedded in Annuity Contracts [Member]
This element represents derivatives embedded in annuity contracts.
Asset Class [Axis]
Asset Class [Axis]
Asset Class [Domain]
Asset Class [Domain]
Fixed Income Securities Valued Based on Nonbinding Broker Quotes
Fixed Income Securities Valued Based on Nonbinding Broker Quotes [Member]
Represents the fixed income securities valued based on non-binding broker quotes.
Municipal Not Rated by Third Party Credit Rating Agencies
Municipal Not Rated by Third Party Credit Rating Agencies [Member]
Represents the municipal securities not rated by third party credit rating agencies.
Embedded Derivative, Fair Value of Embedded Derivative Liability
Total assets at fair value
Investment assets, useful life
Investment Assets, Useful Life
Investment Assets, Useful Life
Commitments to invest in limited partnership interests
Commitments to Invest in Limited Partnership Interests
This element represents commitments to acquire financial interests or instruments, to allow for additional participation in certain limited partnership investments. Because the equity investments in the limited partnerships are not actively traded, it is not practical to estimate the fair value of these commitments.
Impairment write-downs
Impairment Write Down
The amount of other than temporary impairment losses on equity securities and other than temporary impairment related to credit losses on debt securities. Additionally, this item includes other than temporary impairment losses recognized during the period on investments accounted for under the cost method of accounting.
Change in intent write-downs
Change in Intent Write Downs
The amount of change in intent write-downs reflect instances where the Company has made a decision to sell the security or it is more likely than not the Company will be required to sell the security before recovery of its amortized cost basis.
Net OTTI losses recognized in earnings
Sales
Debt and Equity Securities, Gain (Loss)
Valuation of equity investments
Equity Securities, FV-NI, Realized Gain (Loss)
Valuation and settlements of derivative instruments
Gain (Loss) on Derivative Instruments, Net, Pretax
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Table]
Fixed income and equity securities
Available-for-sale Securities [Member]
Schedule of Available for Sale Securities
Debt Securities, Available-for-sale [Line Items]
Gross gains on sales of fixed income securities
Debt Securities, Available-for-sale, Realized Gain
Gross loss on sales of fixed income securities
Debt Securities, Available-for-sale, Realized Loss
Restatement [Axis]
Restatement [Axis]
Restatement [Domain]
Restatement [Domain]
Previously reported
Previously Reported [Member]
Impact of change
Restatement Adjustment [Member]
Pension and other postretirement measurement gains and losses
Other operating assets and liabilities
Net cash provided by operating activities
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Subsequent Event
Subsequent Event [Member]
Michigan Catastrophic Claim Association
Michigan Catastrophic Claim Association [Member]
Represents the Michigan Catastrophic Claim Association.
Program funding, per vehicle annual assessment
Program Funding, Per Vehicle Annual Assessment
Program Funding, Per Vehicle Annual Assessment
Reinsurance increase, percentage
Reinsurance Increase, Percentage
Reinsurance Increase, Percentage
Retention level per claim
Reinsurance Retention Policy, Amount Retained
Assets
Assets
Retained income
Retained Earnings (Accumulated Deficit)
Retained earnings accumulated deficit decrease
Retained Earnings Accumulated Deficit Increase (Decrease)
Represents the increase (decrease) in the amount of accumulated earnings or deficit during the period.
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Table]
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Table]
Reserve Reestimates [Axis]
Reserve Reestimates [Axis]
Reserve Reestimates [Axis]
Reserve Reestimates [Domain]
Reserve Reestimates [Domain]
[Domain] for Reserve Reestimates [Axis]
Other
Other, Reserve Reestimates [Member]
Other, Reserve Reestimates [Member]
Auto insurance - liability coverage
Other personal lines
Other Personal Lines [Member]
Other personal lines include other personal lines that are not separately disclosed.
Commercial lines
Property and Casualty, Commercial Insurance [Member]
Short-duration Insurance Contracts, Accident Year [Axis]
Short-duration Insurance Contracts, Accident Year [Axis]
Short-duration Insurance Contracts, Accident Year [Domain]
Short-duration Insurance Contracts, Accident Year [Domain]
Accident Year 2015
Short-duration Insurance Contracts, Accident Year 2015 [Member]
Accident Year 2016
Short-duration Insurance Contracts, Accident Year 2016 [Member]
Accident Year 2017
Short-duration Insurance Contracts, Accident Year 2017 [Member]
Accident Year 2018
Short-duration Insurance Contracts, Accident Year 2018 [Member]
Accident Year 2019
Short Duration Insurance Contracts Accident Year 2019 [Member]
Short Duration Insurance Contracts Accident Year 2019 [Member]
Claims incurred and paid from before 2015
Short-duration Insurance Contracts, Accident Year Before 2015 [Member]
Short-duration Insurance Contracts, Accident Year Before 2015 [Member]
Unallocated loss adjustment expenses (“ULAE”)
Unallocated Loss Adjustment Expenses [Member]
Unallocated Loss Adjustment Expenses [Member]
Increase (decrease) in claims and claims expense
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Incurred claims and allocated claim adjustment expenses, net of recoverables
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net
Prior year reserve reestimates
Short Term Duration Insurance Contracts, Prior Year Reserve Estimates Increase (Decrease)
Short Term Duration Insurance Contracts, Prior Year Reserve Estimates Increase (Decrease)
Prior Year Reserve Estimates
Prior Year Reserve Estimates Increase (Decrease)
Prior Year Reserve Estimates Increase (Decrease)
IBNR reserves plus expected development on reported claims
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net
Cumulative number of reported claims
Short-duration Insurance Contract, Cumulative Number of Reported Claims
Cumulative paid claims and allocated claims adjustment expenses, net of recoverables
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net
All outstanding liabilities before 2015, net of recoverables
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented
Liabilities for claims and claim adjustment expenses, net of recoverables
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net
Lessee, Lease, Description [Table]
Lessee, Lease, Description [Table]
Lessee, Lease, Description [Line Items]
Lessee, Lease, Description [Line Items]
Lease, term of contract
Lessee, Operating Lease, Term of Contract
Renewal term
Lessee, Operating Lease, Renewal Term
Lease, option to terminate
Lessee, Operating Lease, Term of Contract, Option to Terminate
Lessee, Operating Lease, Term of Contract, Option to Terminate
Lease liability
Operating Lease, Liability
Right of use asset
Operating Lease, Right-of-Use Asset
Lease, cost
Lease, Cost
Variable lease, cost
Variable Lease, Cost
Weighted average remaining lease term (years)
Operating Lease, Weighted Average Remaining Lease Term
Weighted average discount rate
Operating Lease, Weighted Average Discount Rate, Percent
2020
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months
2021
Lessee, Operating Lease, Liability, Payments, Due Year Two
2022
Lessee, Operating Lease, Liability, Payments, Due Year Three
2023
Lessee, Operating Lease, Liability, Payments, Due Year Four
2024
Lessee, Operating Lease, Liability, Payments, Due Year Five
Thereafter
Lessee, Operating Lease, Liability, Payments, Due after Year Five
Total lease payments
Lessee, Operating Lease, Liability, Payments, Due
Less: interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Present value of lease liabilities
Schedule of Finite-Lived Intangible Assets [Table]
Schedule of Finite-Lived Intangible Assets [Table]
Indefinite-lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Trade names and licenses
Trade Names and Licenses [Member]
Trade Names and Licenses [Member]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Customers relationships
Customer Relationships [Member]
Technology and other
Technology-Based and Other Intangible Assets [Member]
Technology-Based and Other Intangible Assets [Member]
Technology-Based Intangible Assets
Technology-Based Intangible Assets [Member]
Other Intangible Assets
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived intangible asset, useful life
Finite-Lived Intangible Asset, Useful Life
Amortization of intangible assets
2020
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months
2021
Finite-Lived Intangible Assets, Amortization Expense, Year Two
2022
Finite-Lived Intangible Assets, Amortization Expense, Year Three
2023
Finite-Lived Intangible Assets, Amortization Expense, Year Four
2024
Finite-Lived Intangible Assets, Amortization Expense, Year Five
Thereafter
Finite-Lived Intangible Assets, Amortization Expense, after Year Five
Total amortization
Amortization
Accumulated amortization on intangible assets
Finite-Lived Intangible Assets, Accumulated Amortization
Intangible assets by type
Intangible Assets, Net (Including Goodwill)
Impairment of intangible assets (Excluding Goodwill)
Impairment of Intangible Assets (Excluding Goodwill)
Homeowners insurance
Net outstanding liabilities
ULAE
Short-duration Insurance Contracts, Liability for Unpaid Claims and Claims Adjustment Expense, Accumulated Unallocated Claim Adjustment Expense
Recoverables
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments
ULAE
Short-duration Insurance Contracts, Liability for Unpaid Claims and Claim Adjustment Expense, Other Reconciling Item
Gross reserve for property and casualty insurance claims and claims expense
Liability for Claims and Claims Adjustment Expense
Reserves for asbestos claims
Liability for Asbestos Claims Net
Carrying amount as of the balance sheet date of reserves for the costs of settling insured claims and costs incurred in the claims settlement process attributable to asbestos, net of estimated reinsurance recoveries.
Reinsurance recoverables for asbestos claims
Reinsurance Recoverables Asbestos
The known and estimated amount recoverable related to asbestos claims as of the balance sheet date from reinsurers for claims paid or incurred by the ceding insurer and associated claims settlement expenses, including estimated amounts for claims incurred but not reported, and policy benefits, net of any related valuation allowance.
Reserves for environmental claims
Liability for Environmental Claims Net
Carrying amount as of the balance sheet date of reserves for the costs of settling insured claims and costs incurred in the claims settlement process attributable to environmental claims, net of estimated reinsurance recoveries.
Reinsurance recoverables for environmental claims
Reinsurance Recoverables Environment
The known and estimated amount recoverable related to environment related claims as of the balance sheet date from reinsurers for claims paid or incurred by the ceding insurer and associated claims settlement expenses, including estimated amounts for claims incurred but not reported, and policy benefits, net of any related valuation allowance.
General
General
General [Text Block]
The disclosure of both the organization, consolidation and presentation of financial statements and the disclosure of the new accounting pronouncements adopted and not yet adopted.
Consumer product protection plans
Consumer Product Protection Plans [Member]
Consumer Product Protection Plans [Member]
Geographical [Axis]
Geographical [Axis]
Geographical [Domain]
Geographical [Domain]
Non-US
Non-US [Member]
Number of reportable segments
Number of Reportable Segments
Premium earned as percentage of consolidated revenues
Premium Earned as Percentage of Consolidated Revenues
This element represents the amount of premiums earned as a percentage of consolidated revenues.
Number of states in which entity operates
Number of States in which Entity Operates
Minimum percentage of premiums to be considered as significant
Minimum Percentage of Premiums to be Considered as Significant
This element represents the minimum percentage of premiums from a single jurisdiction to be considered as significant for the disclosure of a concentration of risk.
Revenues from external customers generated outside the United States
Entity Wide Disclosure on Geographic Areas Foreign Revenue from External Customers
Revenues from external customers attributed to all foreign countries in total from which the entity derives revenues.
Reporting Segments
Segment Reporting Disclosure [Text Block]
Adjustments for New Accounting Pronouncements [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Type of Adoption [Domain]
Type of Adoption [Domain]
Accounting Standards Update 2016-02
Accounting Standards Update 2016-02 [Member]
Non-cash modifications of certain mortgage loans, fixed income securities, limited partnership interests and other investments, as well as mergers completed with equity securities
Transfer from Investments
Non-cash financing activities related to the issuance of shares for vested restricted stock units
Stock Issued During Period, Value, Conversion of Units
Liabilities assumed
Liabilities Assumed
Right-of-use asset obtained in exchange for operating lease liability
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Operating lease, payments
Operating Lease, Payments
Fair value
Fair Value Securities [Abstract]
Derivative instruments
Fair Value of Derivative Instruments with Unrealized Net Capital Gain (Loss)
Fair value as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, for which an unrealized net gain or loss is included in accumulated other comprehensive income.
Gross unrealized Gains
Gross Unrealized Gains [Abstract]
Fixed income securities
Available for sale Fixed Income Securities, Unrealized Gain Included in Other Comprehensive Income
Represents the unrealized gains included in accumulated other comprehensive income as of the balance sheet date, for the fixed income securities which are categorized neither as held-to-maturity nor trading securities.
Short-term investments
Available for sale Short-term Investments, Unrealized Gain Included in Other Comprehensive Income
Available for sale Short-term Investments, Unrealized Gain Included in Other Comprehensive Income
Derivative instruments
Derivative Instruments, Unrealized Gain Included in Other Comprehensive Income
The amount of unrealized gains included in accumulated other comprehensive income on derivative instruments, as of the balance sheet date.
Gross unrealized Losses
Gross Unrealized Loss [Abstract]
Fixed income securities
Available for sale Fixed Income Securities, Unrealized Loss Included in Other Comprehensive Income
Represents the unrealized losses included in accumulated other comprehensive income as of the balance sheet date, for the fixed income securities which are categorized neither as held-to-maturity nor trading securities.
Short-term investments
Available for sale Short-term Investments, Unrealized Loss Included in Other Comprehensive Income
Available for sale Short-term Investments, Unrealized Loss Included in Other Comprehensive Income
Derivative instruments
Derivative Instruments, Unrealized Loss Included in Other Comprehensive Income
The amount of unrealized losses included in accumulated other comprehensive income on derivative instruments, as of the balance sheet date.
Unrealized net gains (losses)
Unrealized Net Gains (Losses) on Investments [Abstract]
Fixed income securities
Available for sale Fixed Income Securities Unrealized Gain (Loss) Included in Other Comprehensive Income
The amount of unrealized gains (losses) included in accumulated other comprehensive income on fixed income securities which are categorized neither as held-to-maturity nor trading securities, as a result of fair value exceeding (under) its amortized cost, as of the balance sheet date.
Short-term investments
Available for sale Short-term Investments, Unrealized Gain (Loss) Included in Other Comprehensive Income
Available for sale Short-term Investments, Unrealized Gain (Loss) Included in Other Comprehensive Income
Derivative instruments
Derivative Instruments, Unrealized Gain (Loss) Included in Other Comprehensive Income
The amount of unrealized gains (losses) included in accumulated other comprehensive income on derivative instruments, as a result of fair value exceeding (under) its amortized cost, as of the balance sheet date.
EMA limited partnerships
Equity Method Investments Unrealized Loss Included in Other Comprehensive Income
The amount of unrealized gains included in accumulated other comprehensive income on equity method investments, as of the balance sheet date.
Unrealized net capital gains and losses, pre-tax
Total Unrealized Gains (Losses) on Investments before Taxes
The amount of unrealized gain (loss) before taxes on all investment securities, which are included in accumulated other comprehensive income (loss), as a result of fair value exceeding (under) its cost, as of the balance sheet date.
Insurance reserves
Insurance Reserves Recognized in Accumulated Other Comprehensive Income
Insurance reserve adjustment included in accumulated other comprehensive income (loss) which represents the amount by which the reserve balance would increase if the net unrealized gains in the applicable product portfolios were realized and reinvested at current lower interest rates, resulting in a premium deficiency.
DAC and DSI
Deferred Policy Acquisition Costs and Deferred Sales Inducement Costs Recognized in Accumulated Other Comprehensive Income
Deferred Policy Acquisition Costs and Deferred Sales Inducement Costs adjustment included in accumulated other comprehensive income (loss) which represents the amount by which the amortization of DAC and DSI would increase or decrease if the unrealized gains or losses in the respective product portfolios were realized.
Amounts recognized
Deferred Policy Acquisition Costs and Deferred Sales Inducement Costs and Insurance Reserves Recognized in Accumulated Other Comprehensive Income
Accumulated adjustment to Deferred Policy Acquisition Costs, Deferred Sales Inducement Costs, and insurance reserves related to unrealized capital gains and losses, before tax, at the end of an accounting period.
Deferred income taxes
Deferred Income Taxes Recognized in Accumulated Other Comprehensive Income
Accumulated adjustment to deferred income taxes related to unrealized capital gains and losses, as of the balance sheet date.
Total unrealized net capital gains and losses
AOCI, Debt Securities, Available-for-sale, Adjustment, after Tax
Ceded Credit Risk [Table]
Ceded Credit Risk [Table]
Catastrophe Reinsurance Sixth Layer
Catastrophe Reinsurance Sixth Layer [Member]
Represents the sixth layer of catastrophe reinsurance agreements.
Catastrophe Reinsurance Program
Catastrophe Reinsurance Program [Member]
Catastrophe Reinsurance Program [Member]
Nationwide Per Occurrence Excess Catastrophe Reinsurance Program
Nationwide Per Occurrence Excess Catastrophe Reinsurance Program [Member]
Nationwide Per Occurrence Excess Catastrophe Reinsurance Program [Member]
Catastrophe Reinsurance First Five Layers
Catastrophe Reinsurance First Five Layers [Member]
Represents the first five layers of catastrophe reinsurance agreements.
Ceded Credit Risk [Line Items]
Ceded Credit Risk [Line Items]
Retention percentage of reinsurance limit
Catastrophe Insurance, Annual Coverage Limit Retention Percentage
Represents the retention percentage of annual coverage limit provided by the insurance arrangement for catastrophe claims.
Amortization of DAC
Deferred Policy Acquisition Costs, Amortization Expense
Liability for Unpaid Claims and Claims Adjustment Expense [Table]
Liability for Unpaid Claims and Claims Adjustment Expense [Table]
Schedule of the activity in the reserve for settling insured claims and expenses incurred in the claims settlement process for the period.
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
SquareTrade
SquareTrade [Member]
SquareTrade [Member]
Property-liability insurance claims and claims expense
Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Activity in the reserve for property-liability insurance claims and claims expense:
Liability for Unpaid Claims and Claims Adjustment Expense, Net [Roll Forward]
Balance as of January 1
Less recoverables
Reinsurance Recoverables, Incurred but Not Reported Claims
Net balance as of January 1
Liability for Unpaid Claims and Claims Adjustment Expense, Net
SquareTrade acquisition as of January 3, 2017
Liability for Unpaid Claims and Claims Adjustment Expense, Business Acquisitions
Incurred claims and claims expense related to:
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims [Abstract]
Current year
Current Year Claims and Claims Adjustment Expense
Prior years
Prior Year Claims and Claims Adjustment Expense
Total incurred
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims
Claims and claims expense paid related to:
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid [Abstract]
Current year
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year
Prior years
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years
Total paid
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid
Net balance as of December 31
Plus recoverables
Balance as of December 31
2018-1 Excess Catastrophe Reinsurance Contract
2018-1 Excess Catastrophe Reinsurance Contract [Member]
2018-1 Excess Catastrophe Reinsurance Contract [Member]
Number of states covered under reinsurance agreement
Number of States Covered Under Reinsurance Agreement
Represents the number of states covered under the reinsurance agreement.
Quarterly Results (unaudited)
Quarterly Financial Information [Text Block]
California Earthquake Authority
California Earthquake Authority [Member]
Represents the California Earthquake Authority, which provides insurance for California earthquake losses.
CEA capital balance
State Facility Capital Balance
Represents the capital balance of a state insurance facility in which the entity participates.
Proceeds of revenue bonds
Proceeds of Revenue Bonds
Proceeds of Revenue Bonds
CEA existing reinsurance layer
State Facility Existing Reinsurance Layer
Represents funding obtainable by a state insurance facility from an existing reinsurance layer in the event that losses cause a deficit.
Policy holder surcharge
Policy Holder Surcharge
Policy Holder Surcharge
Current estimated maximum CEA assessment
Assessment Estimated Maximum, Amount
The current maximum estimated amount of an assessment if the capital balance of a state insurance facility falls below a specified level.
CEA capital balance threshold
State Facility Capital Balance Threshold
The capital balance of a state insurance facility, below which an assessment is triggered.
CEA capital balance to be restored
State Facility Maximum Restored Capital Balance
The capital balance level for a state insurance facility that may be restored through assessments.
Projected aggregate claim paying capacity
Projected Aggregate Claim Paying Capacity
Represents the projected aggregate claim paying capacity of a state insurance facility in which the entity participates.
Share of the CEA (as a percent)
Percentage of Entity Interest
Represents the entity's share in a state insurance facility.
Maximum possible assessment
Maximum Possible Assessment, Amount
Represents the maximum possible assessment amount by a state insurance facility in which the entity participates.
Statement of Financial Position [Abstract]
Assets
Assets [Abstract]
Investments
Fixed income securities, at fair value (amortized cost $56,293 and $57,134)
Equity securities, at fair value (cost $6,568 and $4,489)
Mortgage loans
Mortgage Loans on Real Estate, Commercial and Consumer, Net
Limited partnership interests
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
Short-term, at fair value (amortized cost $4,256 and $3,027)
Other
Other Investments
Total investments
Investments
Cash
Cash
Premium installment receivables, net
Premiums Receivable, Net
Deferred policy acquisition costs
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net
Reinsurance and indemnification recoverables, net
Reinsurance And Indemnification Recoverables, Net
Reinsurance And Indemnification Recoverables, Net
Accrued investment income
Accrued Investment Income Receivable
Property and equipment, net
Property, Plant and Equipment, Net
Goodwill
Goodwill
Other assets
Other Assets
Separate Accounts
Total assets
Liabilities
Liabilities [Abstract]
Reserve for property and casualty insurance claims and claims expense
Reserve for life-contingent contract benefits
Liability for Future Policy Benefit, before Reinsurance
Contractholder funds
Policyholder Contract Deposit
Claim payments outstanding
Claim Payments Outstanding
Liability as of the balance sheet date for benefit claims that have been paid but the payment has not yet cleared.
Deferred income taxes
Deferred Tax Liabilities, Net
Other liabilities and accrued expenses
Accrued Liabilities and Other Liabilities
Long-term debt
Long-term Debt
Separate Accounts
Separate Account, Liability
Total liabilities
Liabilities
Commitments and Contingent Liabilities (Note 7, 8 and 14)
Commitments and Contingencies
Shareholders’ equity
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Preferred stock and additional capital paid-in, $1 par value, 25 million shares authorized, 92.5 thousand and 79.8 thousand shares issued and outstanding, $2,313 and $1,995 aggregate liquidation preference
Preferred Stock, Including Additional Paid in Capital
Common stock, $.01 par value, 2.0 billion shares authorized and 900 million issued, 319 million and 332 million shares outstanding
Common Stock, Value, Outstanding
Additional capital paid-in
Additional Paid in Capital, Common Stock
Deferred Employee Stock Ownership Plan (“ESOP”) expense
Unearned ESOP Shares
Treasury stock, at cost (581 million and 568 million shares)
Treasury Stock, Value
Accumulated other comprehensive income:
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized net capital gains and losses:
Accumulated Other Comprehensive Income (Loss) Unrealized Net Capital Gains and Losses [Abstract]
Unrealized net capital gains and losses on fixed income securities with OTTI
Accumulated Other Comprehensive Income (Loss), Unrealized Net Capital Gains and Losses, Fixed Income Securities
Accumulated Other Comprehensive Income (Loss), Unrealized Net Capital Gains and Losses, Fixed Income Securities
Other unrealized net capital gains and losses
Accumulated Other Comprehensive Income (Loss), Other Unrealized Net Capital Gains and Losses
Accumulated appreciation or loss in value of the total of unsold securities, net of tax, at the end of an accounting period, other than those recorded in unrealized net capital losses on fixed income securities with OTTI.
Unrealized adjustment to DAC, DSI and insurance reserves
Accumulated Other Comprehensive Income (Loss) Unrealized Adjustment to Deferred Policy Acquisition Costs, Deferred Sales Inducement Costs, and Insurance Reserves
Accumulated adjustment to Deferred Policy Acquisition Costs, Deferred Sales Inducement Costs, and insurance reserves related to unrealized capital gains and losses, net of tax, at the end of an accounting period.
Unrealized foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax
Unamortized pension and other postretirement prior service credit
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax
Total accumulated other comprehensive income (AOCI)
Accumulated Other Comprehensive Income (Loss), Net of Tax
Total shareholders’ equity
Stockholders' Equity Attributable to Parent
Total liabilities and shareholders’ equity
Liabilities and Equity
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table]
Accident and health insurance
Accident and Health Insurance Product Line [Member]
Reinsurance
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Life insurance in force
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Net [Abstract]
Gross amount
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Gross
Ceded to other companies
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Ceded
Assumed from other companies
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Assumed
Net amount
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Net
Percentage of amount assumed to net
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Percentage Assumed to Net
Premiums and contract charges:
Premiums Earned, Net [Abstract]
Gross amount
Direct Premiums Earned
Assumed from other companies
Assumed Premiums Earned
Net amount
Percentage of amount assumed to net
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Premium, Percentage Assumed to Net
Reinsurance or coinsurance income net of premium ceded
Reinsurance or Coinsurance Income Netted Against Premium Ceded
Represents the amount of reinsurance or coinsurance income netted against premium ceded.
New Jersey Agreement
New Jersey Agreement [Member]
Represents the New Jersey agreement for catastrophe reinsurance.
New Jersey Agreement Contract One
New Jersey Agreement Contract One [Member]
Represents the contract one of New Jersey agreement for catastrophe reinsurance.
New Jersey Agreement Contract Two
New Jersey Agreement Contract Two [Member]
Represents the contract two of New Jersey agreement for catastrophe reinsurance.
New Jersey Agreement Contract Three
New Jersey Agreement Contract Three [Member]
Represents the contract three of New Jersey agreement for catastrophe reinsurance.
Contracts number
Reinsurance Contracts Number
Represents the number of reinsurance contracts under the agreement.
Number of reinstatements each year for each contract
Catastrophe Insurance Number of Reinstatements Per Year
Represents the number of reinstatements each year for each contract.
Statement of Stockholders' Equity [Abstract]
Cash dividends declared per common share (in dollars per share)
Common Stock, Dividends, Per Share, Declared
Total debt outstanding
Schedule of Debt [Table Text Block]
Schedule of debt maturities for each of the next five years and thereafter
Schedule of Maturities of Long-term Debt [Table Text Block]
Schedule of noncumulative outstanding preferred stock
Schedule of Noncumulative Outstanding Preferred Stock [Table Text Block]
Tabular disclosure of noncumulative outstanding preferred stock.
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
PlumChoice, Inc
PlumChoice, Inc [Member]
PlumChoice, Inc [Member]
InfoArmor
InfoArmor, Inc [Member]
InfoArmor, Inc [Member]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Payments to acquire businesses
Payments to Acquire Businesses, Gross
Intangible assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill
Statutory Financial Information and Dividend Limitations [Abstract]
Statutory Financial Information and Dividend Limitations [Abstract]
Statutory Accounting Practices by Subsidiary [Table]
Statutory Accounting Practices by Subsidiary [Table]
Detail by subsidiary for which financial statements are filed reflecting statutory capital and surplus, net income and the differences between financial reports which are in conformity with generally accepted accounting principles and the statutory financial statements which also use state permitted or prescribed accounting practices.
Amount per statutory accounting practices
Statutory Accounting Practices [Line Items]
Net income (loss)
Statutory Accounting Practices, Statutory Net Income Amount
Capital and surplus
Statutory Accounting Practices, Statutory Capital and Surplus, Balance
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Schedule V — Valuation Allowances and Qualifying Accounts
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Fixed income securities, at fair value, amortized cost (in dollars)
Debt Securities, Available-for-sale, Amortized Cost
Equity securities, at fair value, cost (in dollars)
Equity Securities, FV-NI, Cost
Short-term, at fair value, amortized cost (in dollars)
Other Short Term Investments, Amortized Cost
The amortized cost of short-term investments, net of adjustments for other-than-temporary impairments, if any.
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Preferred stock, shares authorized (in shares)
Preferred Stock, Shares Authorized
Preferred stock, shares issued (in shares)
Preferred Stock, Shares Issued
Preferred stock, shares outstanding (in shares)
Preferred Stock, Shares Outstanding
Preferred stock, shares aggregate liquidation preference (in dollars)
Preferred Stock, Liquidation Preference, Value
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Common stock, shares issued (in shares)
Common Stock, Shares, Issued
Common stock, shares outstanding (in shares)
Common Stock, Shares, Outstanding
Treasury stock, shares (in shares)
Treasury Stock, Shares
Components of net periodic cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Expected return on plan assets
Defined Benefit Plan, Expected Return (Loss) on Plan Assets
Amortization of prior service credit
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Costs and expenses
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement
Remeasurement of projected benefit obligation
Defined Benefit Plan, Amortization of Gain (Loss)
Remeasurement of plan assets
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment
Remeasurement gains and losses
Total net (benefit) cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Credit Losses on Fixed Income Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Beginning balance
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held
Additional credit loss for securities previously other-than-temporarily impaired
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses
Additional credit loss for securities not previously other-than-temporarily impaired
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, No Previous Impairment
Reduction in credit loss for securities disposed or collected
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold
Change in credit loss due to accretion of increase in cash flows
Other than Temporary Impairment, Change in Credit Losses Recognized in Earnings Due to Accretion in Cash Flows and Time Value of Cash Flows
This item represents a change in the cumulative amount of credit losses recognized in earnings for a debt security due to accretion of increase in cash flows and time value of cash flows.
Ending balance
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Award Type [Domain]
Stock options
Share-based Payment Arrangement, Option [Member]
Equity Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Assumptions used to determine fair value of options granted
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Weighted average expected term
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Expected volatility, low end of the range (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum
Expected volatility, high end of the range (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum
Weighted average volatility (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate
Expected dividends, minimum range (as a percent)
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions Expected Dividend Rate, Minimum
The estimated minimum dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.
Expected dividends, maximum range (as a percent)
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions Expected Dividend Rate, Maximum
The estimated Maximum dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.
Weighted average expected dividends (as a percent)
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Weighted Average Expected Dividend Rate
The estimated dividend rate (a percentage of the share price) to be paid (Weighted Average expected dividends) to holders of the underlying shares over the option's term.
Risk-free rate, low end of the range (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum
Risk-free rate, high end of the range (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum
Change in accounting principle
Change in accounting principle
Prospective Adoption of New Accounting Pronouncements [Axis]
Prospective Adoption of New Accounting Pronouncements [Axis]
Accounting Guidance [Domain]
Accounting Guidance [Domain]
Retained income
Retained Earnings [Member]
Accounting Standards Update 2016-13
Accounting Standards Update 2016-13 [Member]
Cumulative effect of change in accounting principle
Cumulative Effect of New Accounting Principle in Period of Adoption
Allowance for credit loss, increase (decrease)
Reinsurance Recoverable, Allowance for Credit Loss, Period Increase (Decrease)
Expected returns on plan assets, smoothing period
Expected Returns On Plan Assets, Smoothing Period
Expected Returns On Plan Assets, Smoothing Period
Total shareholders’ equity
Reinsurance and Indemnification
Reinsurance [Text Block]
Deferred policy acquisition costs activity
Movement Analysis of Deferred Policy Acquisition Costs and Present Value of Future Profits [Roll Forward]
Balance, beginning of year
SquareTrade acquisition
Deferred Policy Acquisition Costs And Present Value Of Future Insurance Profits, Addition From Acquisition
Deferred Policy Acquisition Costs And Present Value Of Future Insurance Profits, Addition From Acquisition
Acquisition costs deferred
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Addition
Amortization charged to income
Deferred Policy Acquisition Costs, Amortization Charged to Income
Deferred Policy Acquisition Costs, Amortization Charged to Income
Effect of unrealized gains and losses
Deferred Policy Acquisition Costs and Present Value of Future Profits, Unrealized Gains (Losses)
Represents the impact of unrealized capital gains and losses on the carrying amount of (a) capitalized costs that vary with and are primarily related to the acquisition of new and renewal insurance contracts and coverages, and (b) capitalized present value of future profits (also known as value of business acquired).
Balance, end of year
Deferred sales inducement costs activity
Movement in Deferred Sales Inducements [Roll Forward]
Balance, beginning of year
Deferred Sale Inducement Cost
Amortization charged to income
Deferred Sales Inducements Amortization
Represents the amortization of deferred sales inducements charged to income.
Effect of unrealized gains and losses
Deferred Sales Inducements, Effect of Unrealized Gains (Losses)
Represents the impact of unrealized capital gains and losses on the carrying amount of deferred sales inducement costs.
Balance, end of year
Investment Holdings [Table]
Investment Holdings [Table]
Investment Holdings
Investment Holdings [Line Items]
Other details of unrealized loss
Other Details of Unrealized Loss [Abstract]
Condensed Financial Information Disclosure [Abstract]
Condensed Financial Statements [Table]
Condensed Financial Statements [Table]
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Consolidated Entities [Domain]
Consolidated Entities [Domain]
Allstate Corporation
Parent Company [Member]
Condensed Financial Information of Registrant
Condensed Financial Statements, Captions [Line Items]
Investments in subsidiaries
Investment in Subsidiaries
The entity's equity interest in its subsidiaries.
Fixed income securities, at fair value (amortized cost $458 and $355)
Receivable from subsidiaries
Intercompany Receivables
The amount of receivables due from the entity's subsidiaries.
Deferred income taxes
Deferred Tax Assets (Liabilities) Net Asset Position
The asset position amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences.
Other assets
Other Assets, Miscellaneous
Pension and other postretirement benefit obligations
Deferred compensation
Deferred Compensation Liability, Current and Noncurrent
Payable to subsidiaries
Intercompany Payable
Intercompany Payable
Notes due to subsidiaries
Notes Payable, Related Parties
Dividends payable to shareholders
Dividends Payable
Other liabilities
Other Sundry Liabilities
Common stock, $.01 par value, 2.0 billion shares authorized and 900 million issued, 319 million and 332 million shares outstanding
Treasury stock, at cost (581 million and 568 million shares)
Unrealized net capital gains and losses
Total accumulated other comprehensive income
Additional balance sheet disclosures:
Balance Sheet Related Disclosures [Abstract]
Fixed income securities, at fair value, amortized cost (in dollars)
Available for sale Securities, Debt Securities, Amortized Cost
The amortized cost of available-for-sale debt securities, net of adjustments for accretion, amortization, other-than-temporary impairments, and hedging, if any.
Preferred stock, shares issued (in shares)
FL Citizens
FL Citizens [Member]
Represents the Citizens Property Insurance Corporation created by the state of Florida to provide insurance to property owners unable to obtain coverage in the private insurance market.
LA Citizens
LA Citizens [Member]
Represents the Louisiana Citizens Property Insurance Corporation.
Assessment rate, percent of deficit or prior year premiums
Regular Assessment Rate
The maximum rate of the regular assessment for a deficit in a calendar year as a percentage of the greater of the deficit or of property premiums industry-wide for the prior year.
Surcharge on policies, deadline for filing prior to imposing
Policy Surcharge Filing Period
The period of time prior to imposing a surcharge on policies to recoup a deficit assessment by which the insurer must file the surcharge with the regulatory agency.
Change in items not yet recognized as a component of defined benefit plans, net periodic cost
Defined Benefit Plan, Accumulated Other Comprehensive Income before Tax [Roll Forward]
Items not yet recognized as a component of net cost – December 31, 2018
Prior service credit amortized to net cost
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax
Items not yet recognized as a component of net cost – December 31, 2019
Other income
Other Income
Expenses
Pension and other postretirement remeasurement gains and losses
Other Postretirement Benefits Cost (Reversal of Cost)
Pension and other postretirement benefit expense
Pension and Other Postretirement Benefits Cost (Reversal of Cost)
Other operating expenses
(Loss) gain from operations before income tax benefit and equity in net income of subsidiaries
Income (Loss) from Continuing Operations before Income Taxes and Income (Loss) from Subsidiaries
Sum of operating profit and non-operating income (expense) before income taxes and income (loss) from subsidiaries.
Income tax expense (benefit)
Loss before equity in net income of subsidiaries
Income (Loss) from Continuing Operations before Income (Loss) from Subsidiaries
Sum of operating profit and non-operating income (expense), net of income taxes, before income (loss) from subsidiaries.
Equity in net income of subsidiaries
Income (Loss) from Subsidiaries
The entity's equity in the net income (loss) of its subsidiaries.
Other comprehensive income (loss), after-tax
Other comprehensive income (loss), after-tax
Comprehensive income
Income Tax Disclosure [Abstract]
Summary of Operating Loss Carryforwards [Table Text Block]
Summary of Operating Loss Carryforwards [Table Text Block]
Reconciliation of the change in the amount of unrecognized tax benefits
Schedule of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns Roll Forward [Table Text Block]
Components of the deferred income tax assets and liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Components of income tax expense
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Reconciliation of the statutory federal income tax rate to the effective income tax rate on income from operations
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Total costs and expenses
Statutory federal income tax rate on income from operations
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Tax credits
Effective Income Tax Rate Reconciliation, Tax Credit, Amount
Share-based payments
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount
Tax-exempt income
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount
State income taxes
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
Tax Legislation benefit
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount
Non-deductible goodwill impairment
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount
Other
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory federal income tax rate on income from operations
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Tax credits
Effective Income Tax Rate Reconciliation, Tax Credit, Percent
Share-based payments
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent
Tax-exempt income
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent
State income taxes
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent
Tax Legislation benefit
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent
Non-deductible goodwill impairment
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent
Other
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Effective income tax rate on income from operations
Effective Income Tax Rate Reconciliation, Percent
Florida Excess Catastrophe Reinsurance Agreement
Florida Excess Catastrophe Reinsurance Agreement [Member]
Represents the Florida excess catastrophe reinsurance agreement.
Florida Excess Catastrophe Reinsurance Agreement, Personal Property Lines
Florida Excess Catastrophe Reinsurance Agreement, Personal Property Lines [Member]
Florida Excess Catastrophe Reinsurance Agreement, Personal Property Lines [Member]
Co-participation percentage
Catastrophe Reinsurance Agreement Contracts, Co-participation Percentage
Catastrophe Reinsurance Agreement Contracts, Co-participation Percentage
Stock option activity
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at the beginning of the period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures
Exercised (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Expired (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period
Outstanding at the end of the period (in shares)
Outstanding, net of expected forfeitures (in shares)
Share based Compensation Arrangement by Share based Payment Award, Options Outstanding Number, Net of Expected Forfeitures
The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance-sheet date, including vested options, net of expected forfeitures.
Outstanding, exercisable ("vested") (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding at the beginning of the period (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Granted (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Exercised (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Forfeited (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Expired (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price
Outstanding at the end of the period (in dollars per share)
Outstanding, net of expected forfeitures (in dollars per share)
Share based Compensation Arrangement by Share based Payment Award, Options Outstanding, Net of Expected Forfeitures Weighted Average Exercise Price
The weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan, with respecting to stock options outstanding as of the balance sheet date net of expected forfeitures.
Outstanding, exercisable ("vested") (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Aggregate intrinsic value, Outstanding
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Aggregate intrinsic value, net of expected forfeitures, outstanding
Share based Compensation Arrangement by Share based Payment Award, Options Outstanding Net of Expected Forfeitures Intrinsic Value
The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices pertaining to options outstanding under the plan as of the balance-sheet date, net of expected forfeitures.
Aggregate intrinsic value, exercisable ("vested"), outstanding
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Weighted average remaining contractual term, Outstanding
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Weighted average remaining contractual term, net of expected forfeitures, outstanding
Share based Compensation Arrangement by Share based Payment Award, Options Outstanding, Net of Expected Forfeitures, Weighted Average Remaining Contractual Term
The weighted average period between the balance sheet date and expiration for all awards outstanding under the plan, net of expected forfeitures, which may be expressed in a decimal value for number of years.
Weighted average remaining contractual term, exercisable ("vested"), outstanding
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Weighted average grant date fair value of options granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Intrinsic value of options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value
2019-1 Excess Catastrophe Reinsurance Contract
2019-1 Excess Catastrophe Reinsurance Contract [Member]
2019-1 Excess Catastrophe Reinsurance Contract [Member]
Number of states covered by reinsurance agreement
Retention amount annual limit
Catastrophe Reinsurance Agreement Contracts, Retention Amount Annual limit
Catastrophe Reinsurance Agreement Contracts, Retention Amount Annual limit
Retention amount for catastrophe reinsurance agreement contracts, losses in excess
Catastrophe Reinsurance Agreement Contracts, Retention Amount, Contractual Coverage
Catastrophe Reinsurance Agreement Contracts, Retention Amount, Contractual Coverage
National Flood Insurance Program
National Flood Insurance Program [Member]
Represents the National Flood Insurance Program.
Reserve for Life-Contingent Contract Benefits and Contractholder Funds
Liability for Future Policy Benefit, by Product Segment [Table]
Liability for Future Policy Benefit, by Product Segment [Table]
Equity-indexed life insurance
Equity Indexed Life Insurance [Member]
Represents equity indexed life insurance coverage.
Other life insurance
Other Life Insurance [Member]
Represents other life insurance coverage.
Fixed annuities contract charges
Fixed Annuities [Member]
Represents fixed annuities.
Immediate Fixed Annuities
Immediate Fixed Annuities [Member]
Represents the immediate fixed annuities.
Equity-indexed fixed annuities
Equity Indexed Fixed Annuities [Member]
Represents equity indexed fixed annuities.
Other fixed annuities
Other Fixed Annuities [Member]
Represents the other fixed annuities.
Other investment contracts
Other Investment Contracts [Member]
Other investment contracts include guaranteed minimum income, accumulation and withdrawal benefits on variable annuities and secondary guarantees on interest-sensitive life insurance and fixed annuities.
Contractholder funds
Liability for Policyholder Contract Deposits by Product [Line Items]
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
Key contract provisions relating to contractholder funds:
Liability for Policyholder Contract Deposits, Assumptions [Abstract]
Contractholder funds, interest rate assumptions (as a percent)
Policyholder Contract Deposits, Interest Rate Assumptions
Interest rate applied to policyholder contract deposits during the stated period.
Period for withdrawal or surrender charges
Withdrawal Surrender Charges Period
The period over which withdrawal or surrender charges are generally calculated as either a percentage of account or declining dollar amount.
Percent of fixed annuities subject to market value adjustment for discretionary withdrawals
Fixed Annuities Subject to Market Value Adjustment, Percent
The percentage of annuities subject to market value adjustment for discretionary withdrawals.
Total contractholder funds
Total AOCI
New Jersey Unsatisfied Claim and Judgment Fund
New Jersey Unsatisfied Claim Judgment Fund [Member]
Represents the information pertaining to The New Jersey Unsatisfied Claim Judgment Fund.
PLGIA
PLGIA [Member]
PLGIA [Member]
Minimum medical benefits portion of personal injury protection coverage for reimbursement to insurers for policies issued or renewed prior to January 1, 1991
Minimum Medical Benefits Portion of Personal Injury Protection Coverage Paid for Reimbursement to Insurers for Policies Issued or Renewed Prior to January 1, 1991
Represents the minimum medical benefits portion of personal injury protection coverage for reimbursement to insurers for policies issued or renewed prior to January 1, 1991.
Minimum medical benefits portion of personal injury protection coverage for reimbursement to insurers for policies issued or renewed from January 1, 1991 to December 31, 2004
Minimum Medical Benefits Portion of Personal Injury Protection Coverage Paid for Reimbursement to Insurers for Policies Issued or Renewed from January 1, 1991 to December 31, 2004
Represents the minimum medical benefits portion of personal injury protection coverage for reimbursement to insurers for policies issued or renewed from January 1, 1991 to December 31, 2004.
Maximum reimbursement to insurers for medical benefits paid under personal injury protection coverage.
Maximum Reimbursement to Insurers for Medical Benefits Portion of Personal Injury Protection Coverage
Represents the maximum portion reimbursement to insurers for medical benefits paid under the personal injury protection coverage.
Reinsurance, administration assessments paid
Reinsurance, Administration Assessments Paid
Reinsurance, Administration Assessments Paid
Insurance fund balance
Insurance Fund Balance
Insurance Fund Balance
Schedule of deferred policy acquisition costs
Schedule of Deferred Policy Acquisition Costs and Present Value of Future Profits [Table Text Block]
Schedule reconciling the carrying value from the beginning to the end of the period for capitalized costs related directly to the successful acquisition of new and renewal insurance contracts and the present value of future profits (PVFP, also known as Value of Business Acquired, or VOBA) of estimated net cash flows embedded in existing long-duration contracts acquired in the purchase of a life insurance company.
Schedule of DSI activity for Allstate Financial
Deferred Sale Inducement Cost [Table Text Block]
Net change in proceeds managed
Net Change in Proceeds Managed [Abstract]
Net change in fixed income securities
Net Change in Fixed Income Term Investments of Proceeds Managed Collateral
Net Change in Fixed Income Term Investments of Proceeds Managed Collateral
Net change in short-term investments
Net Change in Short Term Investments of Proceeds Managed Collateral
The net change in short-term investments from the proceeds managed related to collateral received in conjunction with the entity's securities lending and over-the-counter derivatives.
Operating cash flow (used) provided
Net Cash Provided by Used in Operating Activities Proceeds Managed Collateral
The net operating cash flow provided or used related to collateral received in conjunction with the entity's securities lending and over-the-counter derivatives.
Net change in cash
Net Change In Cash Proceeds Managed Collateral
The net change in cash from the proceeds managed related to collateral received in conjunction with the entity's securities lending and over-the-counter derivatives.
Net change in proceeds managed
Net Change In Proceeds Managed Collateral
The net change in the proceeds managed related to collateral received in conjunction with the entity's securities lending and over-the-counter derivatives.
Cash flows from operating activities
Additional Cash Flow Elements, Operating Activities [Abstract]
Net change in liabilities
Net Change in Liabilities for Collateral [Abstract]
Liabilities for collateral, beginning of year
Obligation to Return Collateral Securities Lending and Derivatives
The liability to return cash and securities received as collateral in conjunction with securities lending and over-the-counter derivatives.
Liabilities for collateral, end of year
Operating cash flow provided (used)
Net Cash Provided by (Used in) Operating Activities, Liabilities for Collateral
The net operating cash flow provided by (used in) the net change in liabilities for collateral.
Reserve for Life-Contingent Contract Benefits and Contractholder Funds
Reserve for Life Contingent Contract Benefits and Contractholder Funds, Disclosure [Text Block]
Describes the various components of the reserve for Life-Contingent Contract Benefits and Contractholder Funds, the significant assumptions, the causes of significant variances from prior periods and reconciliations of beginning to ending reserve balances. Also includes disclosures of minimum guarantee liabilities and separate accounts.
Wrap Fill Excess Catastrophe Reinsurance Contract
Wrap Fill Excess Catastrophe Reinsurance Contract [Member]
Wrap Fill Excess Catastrophe Reinsurance Contract [Member]
Catastrophe reinsurance aggregate loss limit
Catastrophe Reinsurance Aggregate Loss Limit Per Contract Year, In Excess of Layers
Catastrophe Reinsurance Aggregate Loss Limit Per Contract Year, In Excess of Layers
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate Schedule [Table]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate Schedule [Table]
Texas
CALIFORNIA
California
TEXAS
Illinois
ILLINOIS
Florida
NEW JERSEY
New Jersey
FLORIDA
North Carolina
NORTH CAROLINA
Real Estate, Type of Property [Axis]
Real Estate, Type of Property [Axis]
Real Estate [Domain]
Real Estate [Domain]
Apartment complex
Apartment Building [Member]
Office buildings
Office Building [Member]
Warehouse
Warehouse [Member]
Retail
Retail Site [Member]
Other
Other Property [Member]
Receivable Type [Axis]
Receivable Type [Axis]
Receivable [Domain]
Receivable [Domain]
Mortgage loans, not in foreclosure
Mortgages Not in Foreclosure [Member]
Amounts due the Company for loans secured by the collateral of specified real estate property and which loan the borrower (debtor) is obligated to repay in accordance with a predetermined set of payments, excluding loans in the process of foreclosure.
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category [Axis]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category [Axis]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category [Domain]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category [Domain]
2020
Mortgage Loans on Real Estate Maturing in Year One [Member]
This element represents the real estate property mortgages maturing in the first year following the date of the latest balance sheet presented in the financial statements.
2021
Mortgage Loans on Real Estate Maturing in Year Two [Member]
This element represents the real estate property mortgages maturing in the second year following the date of the latest balance sheet presented in the financial statements.
2022
Mortgage Loans on Real Estate Maturing in Year Three [Member]
This element represents the real estate property mortgages maturing in the third year following the date of the latest balance sheet presented in the financial statements.
2023
Mortgage Loans on Real Estate Maturing in Year Four [Member]
This element represents the real estate property mortgages maturing in the fourth year following the date of the latest balance sheet presented in the financial statements.
Thereafter
Mortgage Loans on Real Estate, Maturing after Year Four [Member]
This element represents the real estate property mortgages maturing after the fourth year following the date of the latest balance sheet presented in the financial statements.
Mortgage Loans on Real Estate
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Number of Loans
Carrying value
Percent
Mortgage Loans on Real Estate, Carrying Value Percentage
This element represents the amount of mortgage loans as a percentage of total carrying value.
Private placement commitments
Private Placement Commitments
This element represents conditional commitments to purchase private placement debt and equity securities at a specified future date. The fair value of these commitments generally cannot be estimated on the date the commitment is made as the terms and conditions of the underlying private placement securities are not finalized at that point of time.
Other loan commitments
Other Loan Commitments
This element represents other loan commitments to fund loans to a borrower provided there is no violation of any condition in the contract. These commitments have predetermined interest rates and fixed or varying expiration dates or other termination clauses. The fair value of these commitments is insignificant.
Equity in net income of subsidiaries
Dividends received from subsidiaries
SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Subsidiaries and Equity Method Investees
Pension and other postretirement remeasurement gains and losses
Increase (Decrease) in Obligation, Other Postretirement Benefits
Pension and other postretirement benefits
Increase (Decrease) in Obligation, Pension and Other Postretirement Benefits
Income taxes
Increase (Decrease) in Income Taxes
Operating assets and liabilities
Increase (Decrease) in Operating Capital
Proceeds from sales of investments
Proceeds from Sale, Maturity and Collection of Investments
Proceeds from sales of investments to subsidiaries
Proceeds from Related Party Sale Of Investments
Proceeds from Related Party Sale Of Investments
Investment purchases
Payments to Acquire Investments
Investment collections
Proceeds from Sale and Collection of Receivables
Capital contribution or return of capital from subsidiaries
Proceeds from Return of Investment in Subsidiaries
The cash inflow associated with the return of investments in subsidiaries.
Proceeds from borrowings from subsidiaries
Proceeds from Related Party Debt
Repayment of notes due to subsidiaries
Repayments of Related Party Debt
Net increase (decrease) in cash
Cash, Period Increase (Decrease)
Cash at beginning of year
Cash at end of year
Accumulated other comprehensive income (loss)
AOCI Attributable to Parent [Member]
Balance, beginning of year
Dividends, Common Stock, Cash
Dividends, Common Stock, Cash
Dividends on preferred stock
Dividends, Preferred Stock, Cash
Change in unamortized pension and other postretirement prior service credit
Reclassification of tax effects due to change in accounting principle
Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect
Balance, end of year
Paid
Reinsurance Recoverable for Paid Claims and Claims Adjustments
Reinsurance recoverables related to ceded unpaid losses
Allowance for uncollectible reinsurance
Allowance for Uncollectible Reinsurance
An allowance for the amount deemed uncollectible of an insurance receivable related to a policy by which an insurer indemnifies itself of some or all of the risk associated with another insurance policy.
Catastrophe Reinsurance Seventh Layer
Catastrophe Reinsurance Seventh Layer [Member]
Catastrophe Reinsurance Seventh Layer [Member]
Net income
Reinsurance Fund, Net Income
Reinsurance Fund, Net Income
Total debt outstanding by maturity:
Long-term Debt, Fiscal Year Maturity [Abstract]
2020
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months
2021
Long-term Debt, Maturities, Repayments of Principal in Year Two
2022
Long-term Debt, Maturities, Repayments of Principal in Year Three
2023
Long-term Debt, Maturities, Repayments of Principal in Year Four
2024
Long-term Debt, Maturities, Repayments of Principal in Year Five
Thereafter
Long-term Debt, Maturities, Repayments of Principal after Year Five
Total long-term debt principal
Long-term Debt, Gross
Reinsurance Policy, Type [Axis]
Reinsurance Policy, Type [Axis]
Reinsurance Policy [Domain]
Reinsurance Policy [Domain]
Private Passenger Auto Risk Recoupment
Private Passenger Auto Risk Recoupment [Member]
Private Passenger Auto Risk Recoupment [Member]
Member Loss Recoupments
Member Loss Recoupments [Member]
Member Loss Recoupments [Member]
North Carolina Reinsurance Facility
North Carolina Reinsurance Facility [Member]
Represents information pertaining to The North Carolina Reinsurance Facility.
Funds Deficit in Member's equity
Funds Deficit in Member's equity
Represents the amount of fund's deficit to cover future losses pertaining to automobile liability coverage to drivers that insurers are not otherwise willing to cover.
Schedule of Credit Derivatives [Table]
Schedule of Credit Derivatives [Table]
Credit Rating, Standard & Poor's [Axis]
Credit Rating, Standard & Poor's [Axis]
External Credit Rating, Standard & Poor's [Domain]
External Credit Rating, Standard & Poor's [Domain]
A plus
Standard & Poor's, A+ Rating [Member]
A
Standard & Poor's, A Rating [Member]
Credit Derivatives
Credit Derivatives [Line Items]
Number of counter-parties
Number of Counterparties
The number of counterparties to which the entity has counterparty credit exposure related to derivative contracts.
Notional amount
Notional Amount of Counterparty Credit Exposure
The notional amount of derivative contracts for which the entity has counterparty credit exposure.
Credit exposure
Counterparty Credit Exposure
The amount of credit exposure by counterparties related to derivative contracts.
Exposure, net of collateral
Credit Derivative Exposure Net of Collateral
The amount of credit exposure by counterparties net of collateral received, related to derivative contracts.
Gross liability fair value of contracts containing credit-risk-contingent features
Derivative Gross Liability Fair Value with Credit Risk Contingent Features
Fair value of derivative liabilities, presented on a gross basis containing credit risk contingent features.
Gross asset fair value of contracts containing credit-risk-contingent features and subject to MNAs
Derivative Gross Asset Fair Value with Credit Risk Contingent Features
Fair value of derivative asset, presented on a gross basis containing credit risk contingent features and which is subject to master netting arrangements.
Collateral posted under MNAs for contracts containing credit-risk-contingent features
Collateral Already Posted, Aggregate Fair Value
Maximum amount of additional exposure for contracts with credit-risk-contingent features if all features were triggered concurrently
Additional Collateral, Aggregate Fair Value
Florida Excess Catastrophe Reinsurance Agreement, Provisional
Florida Excess Catastrophe Reinsurance Agreement, Provisional [Member]
Florida Excess Catastrophe Reinsurance Agreement, Provisional [Member]
Number of limits available per contract year
Catastrophe Reinsurance Agreement Contracts, Number of Limits Available Per Contract Year
Catastrophe Reinsurance Agreement Contracts, Number of Limits Available Per Contract Year
Catastrophe reinsurance agreement contracts, number of limits remaining per a contract year
Catastrophe Reinsurance Agreement Contracts, Number of Limits Remaining Per Contract Year
Catastrophe Reinsurance Agreement Contracts, Number of Limits Remaining Per Contract Year
Summary of Significant Accounting Policies
Significant Accounting Policies [Text Block]
Kentucky Agreement
Kentucky Agreement [Member]
Kentucky Agreement [Member]
Number of limits
Catastrophe Reinsurance Agreement Contracts, Number of Limits
Represents the number of limits as per catastrophe reinsurance agreement contracts.
Cash and invested assets
Accumulated deficit
Retained earnings accumulated deficit decrease
Intersegment eliminations
Auto
Auto [Member]
Represents total auto coverage.
Roadside assistance
Roadside Assistance [Member]
Roadside Assistance [Member]
Finance and insurance products
Finance And Insurance Products [Member]
Finance And Insurance Products [Member]
Traditional life insurance
Traditional Life Insurance [Member]
Represents traditional life insurance coverage.
Accident and health insurance premiums
Accident Health and Other [Member]
Represents accident, health and other coverage.
Other revenue
Intersegment premiums and service fees
Intersegment Premiums And Service Fees
Intersegment Premiums And Service Fees
Life and annuity premiums and contract charges
Life and Annuity Premiums and Contract Charges, Net of Reinsurance Ceded
Premiums recognized as revenue in the period on all life insurance and reinsurance contracts, as well as accident and health insurance and reinsurance contracts, after subtracting any amounts ceded to another insurer. Also includes an amount that an insurer adds to a policy's premium, or deducts from a policy's cash value or contract holder's account, as compensation for services rendered (may include fees), after subtracting any amounts ceded to another insurer.
Net investment income
Components of income tax expense (benefit)
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Current Income Tax Expense (Benefit)
Deferred
Deferred Income Tax Expense (Benefit)
Commitments, Guarantees and Contingent Liabilities
Commitments Contingencies and Guarantees [Text Block]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Counterparty Name [Axis]
Counterparty Name [Axis]
Counterparty Name [Domain]
Counterparty Name [Domain]
Kennett Capital Inc
Kennett Capital Inc [Member]
Represents information pertaining to Kennett Capital Inc. , an unconsolidated affiliate of the entity.
Related Party [Axis]
Related Party [Axis]
Related Party [Domain]
Related Party [Domain]
Subsidiaries
Subsidiaries [Member]
Note stated interest rate (as a percent)
Debt Instrument, Interest Rate, Stated Percentage
Repayment of notes due to subsidiaries
Interest paid on debt
Interest Paid, Including Capitalized Interest, Operating and Investing Activities
Net Amount at Risk, by Product and Guarantee [Table]
Net Amount at Risk, by Product and Guarantee [Table]
Variable annuities
Variable Annuities [Member]
Represents variable annuities.
Guaranteed Insurance Contract, Type of Benefit [Axis]
Guaranteed Insurance Contract, Type of Benefit [Axis]
Guaranteed Insurance Contract, Type of Benefit [Domain]
Guaranteed Insurance Contract, Type of Benefit [Domain]
In the event of death
Guaranteed Minimum Death Benefit [Member]
At annuitization (includes income benefit guarantees)
Guaranteed Minimum Income Benefit [Member]
For cumulative periodic withdrawals
Guaranteed Lifetime Withdrawal Benefit [Member]
Accumulation at specified dates
Guaranteed Minimum Accumulation Benefit [Member]
Variable annuity contracts with guarantees
Net Amount at Risk by Product and Guarantee [Line Items]
Account balances of separate accounts with guarantees, invested in equity, fixed income and balanced mutual funds
Separate Accounts Asset, Equity, Fixed Income Balanced Mutual Funds
Account balance as of the balance sheet date of the portion of contract holder funds invested in equity, fixed income and balanced mutual funds that are maintained in accounts which are separate from the general account assets of the entity and that meet certain criteria.
Account balances of separate accounts with guarantees, invested in money market mutual funds
Separate Accounts Asset, Money Market Mutual Funds
Account balance as of the balance sheet date of the portion of contract holder funds invested in money market mutual funds that are maintained in accounts which are separate from the general account assets of the entity and that meet certain criteria.
Separate account value
Net Amount at Risk by Product and Guarantee, Separate Account Value
Net amount at risk
Net Amount at Risk by Product and Guarantee, Net Amount at Risk
Average attained age of contractholders
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age
Weighted average waiting period until guarantee date
Net Amount at Risk by Product and Guarantee, Weighted Average Period Remaining
Investments
Aggregate Excess Catastrophe Florida Reinsurance Contract
Aggregate Excess Catastrophe Florida Reinsurance Contract [Member]
Aggregate Excess Catastrophe Florida Reinsurance Contract [Member]
Restricted stock units
Restricted Stock Units (RSUs) [Member]
Stock units activity
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at the beginning of the period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Vested (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Outstanding at the end of the period (in shares)
Weighted average grant date fair value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted average grant date fair value, nonvested at the beginning of the period (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Weighted average grant date fair value, granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Weighted average grant date fair value, vested (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Weighted average grant date fair value, forfeited (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Weighted average grant date fair value, nonvested at the end of the period (in dollars per share)
Total fair value of restricted stock and restricted stock units vested
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value
Restructuring and Related Activities [Abstract]
Schedule of Restructuring and Related Costs [Table]
Schedule of Restructuring and Related Costs [Table]
Restructuring Type [Axis]
Restructuring Type [Axis]
Type of Restructuring [Domain]
Type of Restructuring [Domain]
Employee costs
Employee Severance [Member]
Exit costs
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Cost and Reserve [Line Items]
Cumulative amount incurred to date for active programs
Restructuring and Related Cost, Cost Incurred to Date
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Carrying value
Reported Value Measurement [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial assets
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Bank loans
Bank Loans Categorized under Other Investments
Represents the portion of other investments categorized as bank loans, as of the balance sheet date.
Agent loans
Agent Loans Categorized under Other Investments
Represents the portion of other investments categorized as bank loans, as of the balance sheet date, valued at fair value by the entity.
Financial liabilities
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Contractholder funds on investment contracts
Contractholder Funds on Investment Contracts
Represents contract holder funds on investment contracts as of the balance sheet date.
Liability for collateral
Capital Structure [Abstract]
Capital Structure [Abstract]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
7.45% Senior Notes, due 2019
Senior Notes Due 2019 at 7.45 Percent [Member]
Senior notes due 2019 at 7.45 percent interest.
Floating Rate Senior Notes, due 2021
Senior Notes, Due 2021 [Member]
Senior Notes, Due 2021 [Member]
Floating Rate Senior Notes, due 2023
Senior Notes, Due 2023 [Member]
Senior Notes, Due 2023 [Member]
3.15% Senior Notes, due 2023
Senior Notes, Due 2023 at 3.15 Percent [Member]
Represents the senior notes due in 2023 at an interest rate of 3.15 percent.
3.28% Senior Notes, due 2026
Senior Notes, Due 2026 at 3.28 Percent [Member]
Senior Notes, Due 2026 at 3.28 Percent [Member]
6.125% Senior Notes, due 2032
Senior Notes Due 2032 at 6.125 Percent [Member]
Senior notes due 2032 at 6.125 percent interest.
5.35% Senior Notes due 2033
Senior Notes Due 2033 at 5.35 Percent [Member]
Senior notes due 2033 at 5.35 percent interest.
5.55% Senior Notes due 2035
Senior Notes Due 2035 at 5.55 Percent [Member]
Senior notes due 2035 at 5.55 percent interest.
5.95% Senior Notes, due 2036
Senior Notes Due 2036 at 5.95 Percent [Member]
Senior notes due 2036 at 5.95 percent interest.
6.900% Senior Debentures, due 2038
Senior Debentures Due 2038 at 6.90 Percent [Member]
Senior Debentures due 2038 at 6.90 percent interest.
5.20% Senior Notes due 2042
Senior Notes, Due 2042 at 5.20 Percent [Member]
Represents the senior notes due in 2042 at an interest rate of 5.20 percent.
4.50% Senior Notes, due 2043
Senior Notes Due 2043 at 4.50 Percent [Member]
Represents the senior notes due in 2043 at an interest rate of 4.50 percent.
4.20% Senior Notes, due 2046
Senior Notes Due 2046 at 4.20 Percent [Member]
Senior Notes Due 2046 at 4.20 Percent [Member]
3.850% Senior Notes, due 2049
Senior Notes Due 2049 at 3.85 percent [Member]
Senior Notes Due 2049 at 3.85 percent [Member]
5.100% Subordinated Debentures, due 2053
Subordinated Debentures Due 2053 at 5.10 Percent [Member]
Represents the subordinated debentures due in 2053 at an interest rate of 5.10 percent.
5.750% Subordinated Debentures, due 2053
Subordinated Debentures Due 2053 at 5.75 Percent [Member]
Represents the subordinated debentures due in 2053 at an interest rate of 5.75 percent.
6.500% Junior Subordinated Debentures, due 2067
Junior Subordinated Debentures Due 2067 at 6.50 Percent [Member]
Junior Subordinated Debentures due 2067 at 6.50 percent.
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Due after one year through five years
Long Term Debt Maturing Next Twelve Months Years Through Five
Long Term Debt Maturing Next Twelve Months Years Through Five
Due after five years through ten years
Long Term Debt Maturing Years Five Through Ten
Long Term Debt Maturing Years Five Through Ten
Due after ten years
Long-Term Debt, Maturities, Repayments Of Principal In Rolling After Year Ten
Long-Term Debt, Maturities, Repayments Of Principal In Rolling After Year Ten
Debt issuance costs
Debt Issuance Costs, Net
Total long-term debt
Short-term debt
Long-term Line of Credit
Total debt
Debt, Long-term and Short-term, Combined Amount
Redemption price as percentage of principal amount plus accrued and unpaid interest
Long Term Debt Redemption Price
The percentage of the principal amount plus accrued and unpaid interest at which the debt instrument is subject to redemption at the entity's option.
Schedule of assets and liabilities that are measured at fair value on a recurring and non-recurring basis
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]
Summary of quantitative information about the significant unobservable inputs
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
Schedule of the rollforward of Level 3 assets and liabilities held at fair value on a recurring basis
Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Table Text Block]
This element represents, for the fair value measurement of assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (net); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs).
Schedule of gains and losses included in net income for Level 3 assets and liabilities still held at the balance sheet date
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block]
Schedule of carrying values and fair value estimates of financial instruments not carried at fair value
Fair Value, by Balance Sheet Grouping [Table Text Block]
Volume and fair value positions of derivative instruments and location in the Consolidated Statement of Financial Position
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Schedule of gross and net amount for the Company's OTC derivatives subject to enforceable master netting arrangements
Offsetting Assets and Liabilities [Table Text Block]
Tabular disclosure of derivative and other financial assets and liabilities that are subject to offsetting, including master netting arrangements.
Gains and losses from valuation, settlements, and hedge ineffectiveness, fair value hedges and derivatives not designated as hedges
Schedule of Derivative Instruments Gain (Loss) in Statement of Financial Performance Valuation Settlements Hedge Ineffectiveness Fair Value Hedges and Not Designated Hedges [Table Text Block]
Schedule of gains and losses from valuation, settlements, and hedge ineffectiveness reported on derivatives used in fair value hedging relationships and derivatives not designated as accounting hedging instruments in the statement of operations.
Counterparty credit exposure by counterparty credit rating
Schedule of Derivative Counterparty Credit Exposure [Table Text Block]
Schedule of counterparty credit exposure by counterparty credit rating.
Derivative instruments with credit features in a liability position, including fair value of assets and collateral netted against the liability
Schedule of Derivative Instruments Credit Features in Liability Position and Netting [Table Text Block]
Schedule of fair value of derivative instruments with termination, cross-default or collateral credit-risk-contingent features that are in a liability position and the fair value of assets and collateral that are netted against the liability.
Contractual amounts of off-balance-sheet financial instruments
Schedule of Off Balance Sheet Financial Instruments [Table Text Block]
Schedule of the contractual amounts of off-balance-sheet financial instruments.
Statutory net income and capital and surplus
Schedule of Statutory Financial Information [Table Text Block]
Schedule of statutory net income and capital and surplus, determined in accordance with statutory accounting practices prescribed or permitted by insurance regulatory authorities.
Investment grade fixed income securities
Below investment grade fixed income securities
Gross Unrealized Loss
Gross Unrealized Loss [Line Items]
Less than 12 months
Less than Twelve Months [Abstract]
Fixed income securities
Debt Securities, Available-for-sale [Abstract]
Number of issues
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions
Fair value
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months
Unrealized losses
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
12 months or more
Twelve Months or More [Abstract]
Fixed income securities
Debt Securities, Unrealized Gain (Loss) [Abstract]
Number of issues
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions
Fair value
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer
Unrealized losses
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Total unrealized losses
Cover Page [Abstract]
Cover Page [Abstract]
Document Information [Table]
Document Information [Table]
Class of Stock [Axis]
Class of Stock [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Common stock par value
Common Stock [Member]
Series G Preferred Stock
Series G Preferred Stock [Member]
Series H
Series H Preferred Stock [Member]
Series I
Series I Preferred Stock [Member]
Series I Preferred Stock
Entity Listings, Exchange [Axis]
Entity Listings, Exchange [Axis]
Exchange [Domain]
Exchange [Domain]
CHICAGO STOCK EXCHANGE, INC
CHICAGO STOCK EXCHANGE, INC [Member]
NEW YORK STOCK EXCHANGE, INC.
NEW YORK STOCK EXCHANGE, INC. [Member]
Document Information, Document [Axis]
Document Information, Document [Axis]
Document [Domain]
Document [Domain]
Document Information [Line Items]
Document Information [Line Items]
Entity Central Index Key
Entity Central Index Key
Entity Filer Category
Entity Filer Category
Title of 12(b) Security
Title of 12(b) Security
Trading Symbol
Trading Symbol
Security Exchange Name
Security Exchange Name
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Document Type
Document Type
Document Quarterly Report
Document Annual Report
Document Period End Date
Document Period End Date
Document Transition Report
Document Transition Report
Entity File Number
Entity File Number
Entity Registrant Name
Entity Registrant Name
Entity Address, Address Line One
Entity Address, Address Line One
Entity Address, City or Town
Entity Address, City or Town
Entity Address, State or Province
Entity Address, State or Province
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
City Area Code
City Area Code
Local Phone Number
Local Phone Number
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Voluntary Filers
Entity Current Reporting Status
Entity Current Reporting Status
Entity Interactive Data Current
Entity Interactive Data Current
Entity Shell Company
Entity Shell Company
Entity Public Float
Entity Public Float
Entity Tax Identification Number
Entity Tax Identification Number
Entity Small Business
Entity Small Business
Entity Emerging Growth Company
Entity Emerging Growth Company
Documents Incorporated by Reference
Documents Incorporated by Reference [Text Block]
Current Fiscal Year End Date
Current Fiscal Year End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Amendment Flag
Amendment Flag
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Derivative Contract [Domain]
Derivative Contract [Domain]
Other
Other Contract [Member]
Interest rate cap agreements
Interest Rate Cap [Member]
Futures
Interest Rate Financial Futures Contracts [Member]
Derivative instrument whose primary underlying risk is tied to the right to receive or pay a sum of money at a given interest rate.
Options
Equity and Index Contracts Options and Warrants [Member]
An investment that follows an index, commodity or basket of assets that trades like stock on an exchange.
Futures
Equity and Index Contracts Financial Futures Contracts [Member]
Derivative instrument whose primary underlying risk is tied to share prices for financial futures contracts.
Total return swap agreements - fixed income
Total Return Swap, Fixed Income [Member]
Total Return Swap, Fixed Income [Member]
Total return swap agreements - equity index
Total Return Swap, Equity [Member]
Total Return Swap, Equity [Member]
Options and futures
Equity and Index Contracts Options [Member]
An investment that follows an index or commodity that trades like stock on an exchange
Foreign currency forwards
Foreign Currency Forwards [Member]
Represents information pertaining to contracts negotiated between two parties to purchase and sell a specific quantity of foreign currency at a price specified at origination of the contract, with delivery and settlement at a specified future date.
Guaranteed accumulation benefits
Guaranteed withdrawal benefits
Guaranteed Minimum Withdrawal Benefit [Member]
Equity-indexed and forward starting options in life and annuity product contracts
Embedded Derivative Equity Indexed and Forward Starting Options in Life and Annuity Product Contract [Member]
Fair value as of the balance sheet date of the embedded derivative Equity Indexed and Forward Starting Options in Life and Annuity Product Contract.
Credit default swaps – buying protection
Credit Default Swap, Buying Protection [Member]
Credit default swaps – selling protection
Credit Default Swap, Selling Protection [Member]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Other investments
Other Investments [Member]
Other assets
Other Assets [Member]
Other liabilities & accrued expenses
Other Liabilities [Member]
Contractholder funds
Contract Holder Funds [Member]
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Derivatives designated as accounting hedging instruments
Designated as Hedging Instrument [Member]
Derivatives not designated as accounting hedging instruments
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value
Derivatives, Fair Value [Line Items]
Total asset derivatives, Notional amount
Derivative Asset, Notional Amount
Total liability derivatives, Notional amount
Derivative Liability, Notional Amount
Total derivatives, Notional amount
Derivative, Notional Amount
Total asset derivatives, Number of contracts
Derivative Asset, Number of Instruments Held
Total liability derivatives, Number of contracts
Derivative Liability, Number of Instruments Held
Total derivatives, Number of contracts
Derivative, Number of Instruments Held
Net amount on balance sheet
Derivative Asset
Asset derivatives, Gross asset
Derivative Asset, Fair Value, Gross Asset
Asset derivatives, gross liability
Derivative Asset, Fair Value, Gross Liability
Net amount on balance sheet
Derivative Liability
Total derivatives, Fair value, net
Derivative, Fair Value, Net
Liability derivatives, Gross asset
Derivative Liability, Fair Value, Gross Asset
Liability derivatives, Gross liability
Derivative Liability, Fair Value, Gross Liability
Municipal Bonds [Table]
Municipal Bonds [Table]
This element represents the schedule providing information on municipal bonds.
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark [Domain]
Stockholders' Equity, Total
Stockholders' Equity, Total [Member]
Concentration Risk Type [Axis]
Concentration Risk Type [Axis]
Concentration Risk Type [Domain]
Concentration Risk Type [Domain]
Credit Concentration Risk
Credit Concentration Risk [Member]
Colorado
WASHINGTON
Washington
NEW YORK
Bank loans
Bank Loans [Member]
Bank Loans [Member]
Real estate
Real Estate Loan [Member]
Policy loans
Policy Loans [Member]
Agent loans
Agent Loans [Member]
Agent Loans [Member]
Derivatives and other
Municipal Bonds
Municipal Bonds [Line Items]
Percentage of municipal bonds carrying value
Municipal Bonds Portfolio, Carrying Value Percentage
This element represents the amount of municipal bonds as a percentage of total carrying value.
Percentage of credit concentration risk of single issuer and affiliates of shareholder's equity
Threshold for Disclosure Percentage
Threshold percentage which the entity uses for disclosure.
Securities loaned
Securities Loaned [Abstract]
Fixed income and equity securities loaned
Securities Loaned, Not Subject to Master Netting Arrangement
Interest Income on collateral, net of fees
Securities Loaned Interest Income on Collateral, Net
Interest earned on collateral received for loaned securities and invested in short-term investments and fixed income securities, net of fees.
Other investment information
Other Investments [Abstract]
Short-term Investments
Short-term Investments
Below investment grade assets
Debt Securities below Investment Grade
Below investment grade assets included in fixed income securities.
Fixed income securities and short-term investments deposited with regulatory authorities
Assets Held by Insurance Regulators
Non-income producing fixed income securities and other investments
Fixed Income Securities, Non-Income Producing
This element represents the fixed income securities that do not produce any income.
Prudential
Prudential [Member]
Represents reinsurance through Prudential related to the disposal of substantially all of the variable annuity business.
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Premiums and contract charges
Life and Annuity Premiums and Contract Charges [Member]
The element represents the location of the gain (loss) included in the Statement of Operations as Life and annuity premiums and contract charges.
Contract benefits
Life and Annuity Contract Benefits [Member]
This element represents the location of the gain (loss) included in the Statement of Operations as Life and annuity contract benefits.
Interest credited to contractholder funds
Interest Credited to Contractholder Funds [Member]
This element represents the location of the gain (loss) included in the Statement of Operations as Interest credited to contract holder funds.
Operating costs and expenses
Other Cost and Expense Operating [Member]
This element represents the location of the gain (loss) included in the Statement of Operations as Operating costs and expenses.
Allstate Financial
Reinsurance ceded amount
Schedule IV — Reinsurance
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Text Block]
Schedule of Goodwill [Table]
Schedule of Goodwill [Table]
Goodwill
Goodwill [Line Items]
Goodwill allocated to segments
Reconciliation of the change in the amount of unrecognized tax benefits
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance – beginning of year
Unrecognized Tax Benefits
Increase for tax positions taken in a prior year
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions
Increase for tax positions taken in the current year
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Balance – end of year
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred tax assets
Components of Deferred Tax Assets [Abstract]
Unearned premium reserves
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Unearned Premiums Reserve
Pension
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions
Accrued compensation
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation
Discount on loss reserves
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Loss Reserves
Other postretirement benefits
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits
Net operating loss carryover
Deferred Tax Assets, Operating Loss Carryforwards
Other assets
Deferred Tax Assets, Other
Total deferred tax assets
Deferred Tax Assets, Gross
Deferred tax liabilities
Deferred Tax Liabilities, Gross [Abstract]
DAC
Deferred Tax Liabilities, Deferred Expense, Deferred Policy Acquisition Cost
Unrealized net capital gains
Deferred Tax Liabilities, Other Comprehensive Income
Investments
Deferred Tax Liabilities, Difference in Tax Bases of Invested Assets
Deferred Tax Liabilities, Difference in Tax Bases of Invested Assets
Life and annuity reserves
Deferred Tax Liabilities Tax, Deferred Expense Reserves and Accruals Policyholder Liabilities
The tax effect as of the balance sheet date of the amount of the estimated future tax liabilities arising from estimated policyholder reserves, which will be deductible from future taxable income when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the tax deduction to be taken.
Intangible assets
Deferred Tax Liabilities, Intangible Assets
Other liabilities
Deferred Tax Liabilities, Other
Total deferred tax liabilities
Deferred Tax Liabilities, Gross
Net deferred tax liability
Noncatastrophic Event [Axis]
Noncatastrophic Event [Axis]
Noncatastrophic Event [Domain]
Noncatastrophic Event [Domain]
Non-catastrophe losses
Non Catastrophe Reestimates [Member]
Represents adjustments to the reserves for unpaid claims and claims adjustment expense resulting from non-catastrophe loss re-estimates.
Catastrophic Event [Axis]
Catastrophic Event [Axis]
Catastrophic Event [Domain]
Catastrophic Event [Domain]
Catastrophes
Catastrophe [Member]
Catastrophe loss reestimates
Catastrophe Loss Re-estimates [Member]
Represents adjustments to the reserves for unpaid claims and claims adjustment expense resulting from catastrophe loss re-estimates.
Reserve reestimates
Reserve Adjustments [Member]
Represents the aggregate adjustments to the reserves for unpaid claims and claims adjustment expense.
Commercial Lines, Discontinued Lines and Coverages and Other Personal Lines [Member]
Commercial Lines, Discontinued Lines and Coverages and Other Personal Lines [Member]
Commercial Lines, Discontinued Lines and Coverages and Other Personal Lines [Member]
Losses from catastrophes, net of recoveries
Net increase (decrease) to reserves
Unfavorable reestimate
Prior Year Claims and Claims Adjustment Expense, Unfavorable Reestimate
Prior Year Claims and Claims Adjustment Expense, Unfavorable Reestimate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Corporate - public
Free-standing derivatives, net
Free Standing Derivatives Net [Member]
This element represents the net free-standing derivatives.
Net investment income
Net Investment Income [Member]
This element represents the location of the gain (loss) included in the Statement of Operations as Net investment income.
Realized capital gains (losses)
Realized Capital Gains and Losses [Member]
This element represents the location of the gain (loss) included in the Statement of Operations as Realized capital gains and losses.
Life and annuity contract benefits
Interest credited to contractholder funds
Quantitative information about the significant unobservable inputs
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Assets Measured on Recurring Basis Unobservable Input Reconciliation Calculation Rollforward
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Total gains (losses) included in: net income
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Total gains (losses) included in: OCI
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)
Transfers into Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3
Transfers out of Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3
Purchases
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases
Sales
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales
Issues
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances
Settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements
Balance at end of period
Balance at beginning of period
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value
Total gains (losses) included in: net income
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings
Total gains (losses) included in: OCI
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss)
Transfers into Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3
Transfers out of Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3
Purchases
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases
Sales
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales
Issues
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances
Settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements
Balance at end of period
Fair value assets and liabilities measured on recurring basis, gain (loss) included in earnings
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings [Abstract]
Gain (loss) included in earnings
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings
Free-standing derivatives, assets
Free-standing derivatives, liabilities
Assets transferred between Level 1 and Level 2
Fair Value Assets, Amount Transfers between Measurement Levels
Amount of transfer of assets measured on a recurring basis between Level 1 and Level 2 of the fair value hierarchy.
Liabilities transferred between Level 1 and Level 2
Fair Value Liabilities, Amount Transfers between Measurement Levels
Amount of transfer of liabilities measured on a recurring basis between Level 1 and Level 2 of the fair value hierarchy.
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Table]
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Income Tax Authority [Domain]
Income Tax Authority [Domain]
US Federal
Domestic Tax Authority [Member]
Foreign
Foreign Tax Authority [Member]
Tax Period [Axis]
Tax Period [Axis]
Tax Period [Domain]
Tax Period [Domain]
20-Year Carryforward Expires in 2025-2037
20-Year Carryforward Expires in 2025-2036 [Member]
20-Year Carryforward Expires in 2025-2036 [Member]
Indefinite Carryforward Period
Indefinite Carryforward Period [Member]
Indefinite Carryforward Period [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards [Line Items]
Components of the net operating loss carryforwards as of December 31, 2019
Operating Loss Carryforwards
Property and casualty insurance claims and claims expense
Pension and other postretirement remeasurement gains and losses
Total costs and expenses
Net Income (Loss) Available to Common Stockholders, Basic
Impact of merger
Debt and Equity Securities, FV-NI [Line Items]
Debt and Equity Securities, FV-NI [Line Items]
Total
Realized Gain (Loss), Fair Value Recognized In Net Income
Realized Gain (Loss), Fair Value Recognized In Net Income
Nonqualified stock options
Non qualified Stock Options [Member]
The entity's nonqualified stock options program for the purpose of awarding stock-based compensation.
Performance stock awards
Performance Shares [Member]
Compensation expense
Share-based Payment Arrangement, Expense
Share-based compensation arrangement by share-based payment award, recognized tax benefits
Share-based Payment Arrangement, Expense, Tax Benefit
Cash received from the exercise of options
Proceeds from Stock Options Exercised
Tax benefit realized on options exercised and stock unrestricted
Share-based Payment Arrangement, Exercise of Option, Tax Benefit
Unrecognized compensation cost related to nonvested awards
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Expected period of recognition of unrecognized compensation cost
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Vesting period of options granted
Share based Compensation Arrangement by Share based Payment Award, Award Vesting Period before 2010
The period of time over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, for awards granted prior to 2010.
Portion of awards vesting and unrestricting on second anniversary of grant date (as a percent)
Share based Compensation Arrangement by Share based Payment Award, Award Vesting, Percent Second Anniversary
The percentage of share-based awards that vest on the second anniversary of the grant date of the awards.
Portion of awards vesting and unrestricting on third and fourth anniversaries of grant date (as a percent)
Share based Compensation Arrangement by Share based Payment Award, Award Vesting, Percent Third Fourth Anniversary
The percentage of share-based awards that vest on the third and fourth anniversaries of the grant date of the awards.
Expiration term for options
Share based Compensation Arrangement by Share based Payment Award, Award Expiration Term
Represents the number of years after which granted options expire.
Common stock authorized for stock-based awards (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
Common stock reserved for further issuance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Property-liability insurance premiums earned
Life and annuity premiums and contract charges
Life and Annuity Insurance Product Line [Member]
Property-liability insurance claims and claims expense
Property Liability Insurance Claims and Claims Expense [Member]
This element represents the location of the gain (loss) included in the Statement of Operations as property-liability insurance claims and claims expense.
Property-liability insurance premiums earned
Life and annuity premiums and contract charges
Ceded Life and Annuity Premiums and Contract Charges
Premiums and contract charges related to life insurance, accident and health insurance and annuity contracts that are assumed and earned by another insurer as a result of reinsurance arrangements.
Benefit Plans
Pension and Other Postretirement Benefits Disclosure [Text Block]
Florida Excess Catastrophe Reinsurance Agreement, Two Largest Hurricanes
Florida Excess Catastrophe Reinsurance Agreement, Two Largest Hurricanes [Member]
Florida Excess Catastrophe Reinsurance Agreement, Two Largest Hurricanes [Member]
Catastrophe reinsurance loss amount
Catastrophe Reinsurance Loss Amount
Catastrophe Reinsurance Loss Amount
Catastrophe reinsurance aggregate, loss limit per contract year, percent
Catastrophe Reinsurance Aggregate, Loss Limit Per Contract Year, Percent
Catastrophe Reinsurance Aggregate, Loss Limit Per Contract Year, Percent
Catastrophe reinsurance loss amount, placement
Catastrophe Reinsurance Loss Amount, Placement
Catastrophe Reinsurance Loss Amount, Placement
Number of hurricanes
Number of Hurricanes
Number of Hurricanes
Percent eligible for reimbursement
Catastrophe Reinsurance Aggregate, Loss Limit Per Contract Year, Percent Eligible for Reimbursement
Catastrophe Reinsurance Aggregate, Loss Limit Per Contract Year, Percent Eligible for Reimbursement
Decrease in unrecognized tax benefits is reasonably possible
Decrease in Unrecognized Tax Benefits is Reasonably Possible
Income tax penalties and interest expense
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense
Interest on income taxes accrued
Unrecognized Tax Benefits, Interest on Income Taxes Accrued
Unrecognized tax benefits, income tax penalties accrued
Unrecognized Tax Benefits, Income Tax Penalties Accrued
Income tax paid
Income Taxes Paid
Current income tax payable
Taxes Payable, Current
Stock units activity
Adjustment for performance achievement (in shares)
Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other than Options Adjustments in Period
Represents the number of adjustments made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).
Weighted average grant date fair value
Weighted average grant date fair value, adjustment for performance achievement (in dollars per share)
Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Adjustments in Period Weighted Average Grant Date Fair Value
Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans related to adjustments for performance achievement.
Maximum annual medical cost inflation after retirement for Company's share of retiree medical benefits cost for non Medicare-eligible retirees (as a percent)
Annual Medical Cost Inflation Limit Percentage
This element represents the percentage limit on the annual medical cost inflation after retirement for the entity's share of the cost of retiree medical benefits for non Medicare-eligible retirees.
Accumulated benefit obligation (ABO)
Defined Benefit Plan, Accumulated Benefit Obligation
Company's Pension Plans with an ABO in excess of plan assets
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Company's pension plans with ABO in excess of plan assets, aggregate projected benefit obligation
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation
Company's pension plans with ABO in excess of plan assets, aggregate accumulated benefit obligation
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation
Company's pension plans with ABO in excess of plan assets, aggregate fair value of plan assets
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets
Defined benefit plans' accrued benefit costs related to certain unfunded and non-qualified plans
Defined Benefit Plan Accrued Benefit Costs Relating to Unfunded Non Qualified Plans
This element represents the defined benefit plans accrued benefit costs relating to certain unfunded and Nonqualified plans.
Defined benefit plan, assumed health care cost trend rates
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Weighted average health care cost trend rate
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year
Ultimate health care cost trend rate in 2038 and thereafter
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate
Schedule II — Condensed Financial Information of Registrant
Condensed Financial Information of Parent Company Only Disclosure [Text Block]
Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Equipment
Equipment [Member]
Real property
Building and Building Improvements [Member]
Property and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life, average
Property, Plant and Equipment, Useful Life
Accumulated depreciation on property and equipment
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Depreciation expense on property and equipment
Depreciation
Schedule of Stock by Class [Table]
Schedule of Stock by Class [Table]
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Domain]
Variable Rate [Domain]
London Interbank Offered Rate (LIBOR)
London Interbank Offered Rate (LIBOR) [Member]
Short-term Debt, Type [Axis]
Short-term Debt, Type [Axis]
Short-term Debt, Type [Domain]
Short-term Debt, Type [Domain]
Commercial Paper
Commercial Paper [Member]
Senior Notes, Due 2049 [Member]
Senior Notes, Due 2049 [Member]
Senior Notes, Due 2049 [Member]
Subordinated Debentures
Subordinated Debt [Member]
6.125% Junior Subordinated Debentures, due 2067
Junior Subordinated Debentures Due 2067 at 6.125 Percent [Member]
Junior Subordinated Debentures due 2067 at 6.125 percent.
6.75% Senior Debentures, due 2018
Senior Debentures Due 2018 at 6.75 Percent [Member]
Senior Debentures due 2018 at 6.75 percent interest.
The Debentures
Junior Subordinated Debentures Due 2067 at 6.125 Percent and Junior Subordinated Debentures Due 2067 at 6.50 Percent [Member]
Represents Series A and Series B Fixed-to-Floating Rate Junior Subordinated Debentures.
Series D
Series D Preferred Stock [Member]
Series E
Series E Preferred Stock [Member]
Series F
Series F Preferred Stock [Member]
Noncumulative Perpetual Preferred Stock
Noncumulative Preferred Stock [Member]
Series E
Series E Noncumulative Preferred Stock [Member]
Series E preferred stock upon which unpaid dividends do not accrue.
Series F
Series F Noncumulative Preferred Stock [Member]
Series F preferred stock upon which unpaid dividends do not accrue.
Series A Preferred Stock
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Class of Stock [Line Items]
Debt instrument, face amount
Debt Instrument, Face Amount
Repayments of long-term debt
Minimum principal outstanding amount for redemption of debt in whole or in part
Debt Instrument, Minimum Aggregate Principal Outstanding Amount for Redemption of Debt in Whole or in Part
Represents the minimum amount of aggregate outstanding principal amount for initiating redemption of debt in whole or in part on or after maturity date.
Period after occurrence of certain tax and rating agency events in which redemption of debt in whole permissible
Debt Instrument Period after Occurrence of Certain Tax and Rating Agency Events in which Redemption of Debt in Whole Permissible
The period after the occurrence of certain tax and rating agency events, which permits the redemption of debt in whole prior to maturity date.
Interest rate spread over LIBOR (as a percent)
Debt Instrument, Basis Spread on Variable Rate
Maximum period for deferment of interest payment
Maximum, Number of Years for Deferring Interest
This element represents the maximum number of years for deferring interest on debt.
Reserved common stock authorized and unissued for debentures obligations (in shares)
Common Stock Authorized and Unissued Reserved for Debt Obligations
Represents the common shares reserved to satisfy the debt obligations.
Threshold percentage of repurchase or redemption of outstanding principal debentures for non applicability of promises and covenants contained in the new RCC
Debt Instruments, Replacement Capital Covenants Terms Non Applicability Threshold Percent Age of Repurchase or Redemption of Outstanding Principal Debt
Represents the threshold percentage of repurchase or redemption of outstanding principal debt for non-applicability of promises and covenants contained in the replacement capital covenants.
Period within which threshold percentage of outstanding principal of debentures is to be purchased for non applicability of promises and covenants contained in the new RCC
Debt Instruments, Replacement Capital Covenants Terms Non Applicability Period within which Threshold Percentage of Outstanding Principal Debt is Repurchased or Redeemed
Represents the period within which the threshold percentage of outstanding principal of debt is to be purchased for non applicability of promises and covenants contained in the replacement capital covenants.
Percentage of repurchase or redemption of outstanding principal debentures within specified period for non applicability of promises and covenants contained in the new RCC
Debt Instruments, Replacement Capital Covenants Terms Non Applicability Specified Percent Age of Repurchase or Redemption of Outstanding Principal Debt for Specified Period
Represents the percentage of repurchase or redemption of outstanding principal debt for non-applicability of promises and covenants contained in the replacement capital covenants.
Specified period within which percentage of outstanding principal of debentures is to be purchased for non applicability of promises and covenants contained in the new RCC
Debt Instruments, Replacement Capital Covenants Terms Non Applicability Specified Period within which Specified Percentage of Outstanding Principal Debt is Repurchased or Redeemed
Represents the specified period within which the specified percentage of outstanding principal of debt is to be purchased for non applicability of promises and covenants contained in the replacement capital covenants.
Unsecured revolving credit facility
Line of Credit Facility, Maximum Borrowing Capacity
Commercial Paper maximum borrowing capacity
Commercial Paper Maximum Borrowing Capacity
Maximum borrowing capacity under the commercial paper program.
Additional borrowing capacity under credit facility increase provision
Line of Credit Facility, Provisional Incremental Borrowing
Amount of additional borrowing allowed under an increase provision contained in the credit facility.
Maximum debt to capital ratio allowed under credit facility covenant (as a percent)
Maximum Debt to Capital Ratio to Avail Credit Facility
The maximum debt to capital resources ratio allowed by the credit facility financial covenant.
Credit facility, amount outstanding
Line of Credit Facility, Fair Value of Amount Outstanding
Amount of commercial paper outstanding
Short-term Debt
Other liabilities and accrued expenses
Other Liabilities
Common stock
Common Stock [Abstract]
Reacquired shares (in shares)
Treasury Stock, Shares, Acquired
Average cost of reacquired shares (in dollars per share)
Treasury Stock Acquired, Average Cost Per Share
Reissued net shares under equity incentive plans (in shares)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture
Preferred stock
Preferred Stock, Including Additional Paid in Capital [Abstract]
Stock Redeemed (in shares)
Stock Redeemed or Called During Period, Shares
Preferred stock, shares liquidation preference (in dollars per share)
Preferred Stock, Liquidation Preference Per Share
Aggregate liquidation preference
Proceeds from Issuance of Preferred Stock Gross
The aggregate proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation.
Redemption of preferred stock
Preferred Stock Redemption Premium
Preferred Stock Redemption Premium
Stock issued during period (in shares)
Stock Issued During Period, Shares, New Issues
Dividend rate
Preferred Stock, Dividend Rate, Percentage
Period of issuance of common stock prior to dividend declaration date during which dividend declaration is prohibited
Period before Dividend Declaration Date Considered for Common Stock Issue Used for Preferred Dividends
Represents the period before dividend declaration date during which common stock issued can be used to pay preferred stock dividends when restricted due to capital or net income levels.
Collective risk-based capital ratios of subsidiaries as a percentage of net written premiums of insurance business
Collective Risk Based Capital Ratios of Subsidiaries as Percentage of Net Written Premiums of Insurance Business
Represents the collective risk-based capital ratios of subsidiaries expressed as a percentage of net written premiums of insurance business.
Risk-based capital ratios as a percentage of action level risk-based capital
Risk Based Capital Ratios as Percentage of Action Level Risk Based Capital
Represents risk-based capital ratios expressed as a percentage of action level risk-based capital.
Percentage of decline in consolidated shareholders' equity from benchmark quarter
Percentage of Decline in Consolidated Shareholders Equity from Benchmark Quarter
Represent the percentage of decline in consolidated shareholders' equity from benchmark quarter.
Additional members of the board of directors
Additional Members of Board of Directors
The amount of additional members of the board of directors to be elected by preferred stock holders if and when dividends have not been declared and paid in full for at least six quarterly dividend periods or their equivalent (whether or not consecutive).
Percentage by which consolidated shareholders' equity should increase or decrease to avoid restriction on dividends
Percentage by which Consolidated Shareholders Equity Should Increase or Decrease to Avoid Restriction on Dividends
Represents the percentage by which consolidated shareholders' equity should increase or decrease to avoid restriction on dividends.
Preferred stock, redemption price (in dollars per share)
Preferred Stock, Redemption Price Per Share
Investments
Investment [Text Block]
Other Comprehensive Income
Comprehensive Income (Loss) Note [Text Block]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Mortgage loans, non-impaired
Mortgages Non Impaired [Member]
Amounts due the Company for loans secured by the collateral of specified real estate property and which loan the borrower (debtor) is obligated to repay in accordance with a predetermined set of payments, excluding loans determined to be impaired.
Mortgage loans
Mortgage Receivable [Member]
Internal Credit Assessment [Axis]
Internal Credit Assessment [Axis]
Internal Credit Assessment [Domain]
Internal Credit Assessment [Domain]
Below 1.0
Debt Service Coverage Ratio below 1 [Member]
This element represents the information pertaining to mortgage loans on real estate having a debt service coverage ratio below 1.
1.0 - 1.25
Debt Service Coverage Ratio below 1 to 1.25 [Member]
This element represents the information pertaining to mortgage loans on real estate having a debt service coverage ratio between 1 to 1.25.
1.26 - 1.50
Debt Service Coverage Ratio below 1.26 to 1.5 [Member]
This element represents the information pertaining to mortgage loans on real estate having a debt service coverage ratio between 1.26 to 1.5.
Above 1.50
Debt Service Coverage Ratio below above 1.5 [Member]
This element represents the information pertaining to mortgage loans on real estate having a debt service coverage ratio above 1.5.
Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value of non-impaired mortgage loans, summarized by debt service coverage ratio distribution
Financing Receivable, Recorded Investment by Credit Quality Indicator [Abstract]
Fixed rate mortgage loans
Loans Receivable with Fixed Rates of Interest
Variable rate mortgage loans
Loans Receivable with Variable Rates of Interest
Total
Net carrying value of impaired mortgage loans
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired mortgage loans with a valuation allowance
Impaired Financing Receivable, with Related Allowance, Recorded Investment
Impaired mortgage loans without a valuation allowance
Impaired Financing Receivable, with No Related Allowance, Recorded Investment
Total impaired mortgage loans
Impaired Financing Receivable, Recorded Investment
Valuation allowance on impaired mortgage loans
Financing Receivable, Allowance for Credit Loss
Average carrying value and interest income recognized on impaired mortgage loans
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Average impaired mortgage loans
Impaired Financing Receivable, Average Recorded Investment
Rollforward of the valuation allowance on impaired mortgage loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance
Net increase in valuation allowance
Provision for Loan, Lease, and Other Losses
Charge offs
Financing Receivable, Allowance for Credit Loss, Writeoff
Ending balance
Preferred Stock
Preferred Stock [Member]
Balance, end of year
Preferred Stock Including Additional Paid in Capital [Member]
Common stock additional capital paid-in
Additional Paid-in Capital [Member]
Deferred ESOP expense
Deferred ESOP Expense [Member]
Unearned shares for all classes of common stock and nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by an employee stock ownership plan (ESOP).
Treasury stock
Treasury Stock [Member]
Increase (decrease) in equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred stock issuance, net of issuance costs
Stock Issued During Period, Value, New Issues
Preferred stock redemption
Stock Redeemed or Called During Period, Value
Forward contract on accelerated share repurchase agreement
Adjustments to Additional Paid in Capital Forward Contract on Accelerated Share Repurchase Agreement
Amount of increase (decrease) to additional paid in capital (APIC) resulting from changes in forward contract on accelerated share repurchase agreement.
Equity incentive plans activity
APIC, Share-based Payment Arrangement, Increase for Cost Recognition
Dividends on common stock (declared per share of $2.00, $1.84 and $1.48)
Payments
Stock Issued During Period, Value, Employee Stock Ownership Plan
Shares acquired
Treasury Stock, Value, Acquired, Cost Method
Shares reissued under equity incentive plans, net
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture
Change in unrealized net capital gains and losses
Change in unrealized foreign currency translation adjustments
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative [Table]
Derivative [Table]
Designated as Hedging Instrument
Hedging Relationship [Axis]
Hedging Relationship [Axis]
Hedging Relationship [Domain]
Hedging Relationship [Domain]
Fair Value Hedging
Fair Value Hedging [Member]
Cash Flow Hedging
Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative [Line Items]
Potential recoveries
Potential Recoveries under Credit Risk Derivatives
Represents the potential amount of recoveries under sale of credit protection.
Number of derivative designated as a fair value hedge
Number of derivative designated as a cash flow hedge
Number of Foreign Currency Derivatives Held
Cash and securities pledged as collateral, from counterparties
Cash and Securities Pledged as Collateral, from Counterparties
This element represents cash and securities pledged as collateral from counterparties.
Securities pledged as collateral to counterparties
Securities Pledged as Collateral to Counterparties
This element represents securities pledged to counterparties as collateral for credit exposure.
Collateral posted
Margin deposits
Margin Deposit Assets
North Carolina Joint Underwriters Association
North Carolina Joint Underwriters Association [Member]
Represents information pertaining to North Carolina Joint Underwriters Association.
North Carolina Insurance Underwriting Association
North Carolina Insurance Underwriting Association [Member]
Represents information pertaining to North Carolina Insurance Underwriting Association.
Plan surplus receivable
Plan Surplus Receivable
Represents the total amount of receivable reflecting a plan surplus from all open years.
Funds surplus in member's equity
Funds Surplus (Deficit) In Member's Equity
Funds Surplus (Deficit) In Member's Equity
Percentage of surcharge on property insurance policy statewide to be remitted to the plan
Percentage of Surcharge on Property Insurance Policy Statewide to be Remitted
Represents the percentage of surcharge on each property insurance policy statewide to be remitted to the plan.
Principal balance of note from ESOP
Employee Stock Ownership Plan (ESOP), Debt Structure, Direct Loan, Amount
Company's contribution to the Allstate Plan
Defined Contribution Plan, Cost
ESOP benefit computed
Employee Stock Ownership Plan (ESOP) [Abstract]
Interest expense recognized by ESOP
Employee Stock Ownership Plan (ESOP), Interest Payments from ESOP
Less: dividends accrued on ESOP shares
Employee Stock Ownership Plan (ESOP), Dividends Accrued to ESOP
Dividends accrued during the period on stock held by an employee stock ownership plan.
Cost of shares allocated
Employee Stock Ownership Plan (ESOP), Cost of Shares Allocated to ESOP
This element represents the cost of the shares allocated to an employee stock ownership plan during the period.
Compensation expense
Employee Stock Ownership Plan (ESOP), Compensation Expense
Reduction of defined contribution due to ESOP
Employee Stock Ownership Plan (ESOP), Reduction in Defined Contribution
This element represents the reduction in the entity's cost recognized during the period for defined contribution plans due to use of the ESOP for pre-funding anticipated contributions.
ESOP benefit
Employee Stock Ownership Plan, (ESOP), Benefit
The element represents the aggregate amount of ESOP benefit.
Contributions to ESOP
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP
Number of committed-to-be-released (in shares)
Employee Stock Ownership Plan (ESOP), Number of Committed-to-be-Released Shares
Allocated ESOP shares (in shares)
Employee Stock Ownership Plan (ESOP), Number of Allocated Shares
Unallocated ESOP shares (in shares)
Employee Stock Ownership Plan (ESOP), Number of Suspense Shares
Defined contribution plan expense for eligible employees of Canadian insurance subsidiaries and Sterling
Defined Contribution Plan Expense for Eligible Employees of Certain Subsidiaries
This element represents the defined contribution plans expenses for eligible employees of certain subsidiaries.
Net unrealized gains related to changes in valuation of fixed income securities subsequent to impairment measurement date
Unrealized Gain (Loss) Fixed Income Securities Changes in Valuation Subsequent to Impairment
The net unrealized gain or loss related to changes in valuation of fixed income securities subsequent to the impairment measurement date for fixed income securities with other than temporary impairment losses recorded in accumulated other comprehensive income.
Other-than Impairment Losses Included in Accumulated Other Comprehensive Income
Other than Temporary Impairment Losses Included in Accumulated Other Comprehensive Income [Line Items]
Amount of other-than-temporary impairment losses included in accumulated other comprehensive income for fixed income securities, not included in earnings
Other Than Temporary Impairment Losses, Investments Portion in Accumulated Other Comprehensive Income (Loss) before Tax Portion Attributable To Parent
The pre-tax amount of other than temporary impairment loss on debt securities related to factors other than credit losses when the entity does not intend to sell the security and it is not more likely than not that the entity will be required to sell the security before recovery of its amortized cost basis. Such amount is included in accumulated other comprehensive income, attributable to the parent entity.
Offsetting Assets and Liabilities [Table]
Offsetting Assets and Liabilities [Table]
Disclosure of information about derivative and financial assets and liabilities that are subject to offsetting, including enforceable master netting arrangements.
Transaction Type [Axis]
Transaction Type [Axis]
Transaction [Domain]
Transaction [Domain]
OTC derivatives
Over the Counter [Member]
Gross and net information about the liabilities subject to master netting arrangements
Offsetting Assets and Liabilities [Line Items]
Asset derivatives
Derivative Asset [Abstract]
Gross amount
Derivative asset, fair value, gross liability
Derivative asset, cash collateral (received) pledged
Derivative Asset, Collateral, Obligation to Return Cash, Offset
Net amount on balance sheet
Securities collateral (received) pledged
Derivative, Collateral, Obligation to Return Securities
Net amount
Derivative Asset, Fair Value, Amount Offset Against Collateral
Liability derivatives
Derivative Liability [Abstract]
Gross amount
Derivative liability offsets under cash collateral pledged
Derivative Liability, Collateral, Right to Reclaim Cash, Offset
Net amount on balance sheet
Securities collateral (received) pledged
Derivative, Collateral, Right to Reclaim Securities
Net amount
Derivative Liability, Fair Value, Amount Offset Against Collateral
Dividends Payable [Table]
Dividends Payable [Table]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
Allstate Insurance Company
Allstate Insurance Company [Member]
Represents a wholly owned subsidiary company of Allstate Corporation, which is the primary beneficiary from VIEs.
Dividends Payable [Line Items]
Dividends Payable [Line Items]
Dividend Limitations
Disclosure of Restrictions on Dividends, Loans and Advances Disclosure [Abstract]
Dividends paid
Payments of Dividends
Maximum amount of dividends without prior approval
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval
Advance notice period required for payment of dividend in excess of amount available for distribution without prior approval
Advance Notice Period Required for Approval of Payment of Dividend in Excess of Amount Available for Dividend Distribution without Prior Approval from Regulatory Agency
Represents the advance notice period required for payment of dividend in excess of amount available for distribution without prior approval of regulatory agencies.
Unassigned surplus excluding unrealized appreciation from investments
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments
Action level RBC expressed as a multiplier of authorized control level RBC, which if not achieved would require specific actions to be taken
Statutory Accounting Practices Multiplier of Authorized Control Level Risk Based Capital To Determine Action Level Risk Based Capital
Represents the multiplier of authorized control level risk based capital to determine action level risk based capital.
Authorized control level RBC
Statutory Accounting Practices Authorized Control Level Risk Based Capital
Amount of authorized control level risk based capital (RBC) as of the balance sheet date under prescribed or permitted statutory accounting practices.
Restricted net assets
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries
Estimated future benefit payments
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2019
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months
2020
Defined Benefit Plan, Expected Future Benefit Payment, Year Two
2021
Defined Benefit Plan, Expected Future Benefit Payment, Year Three
2022
Defined Benefit Plan, Expected Future Benefit Payment, Year Four
2023
Defined Benefit Plan, Expected Future Benefit Payment, Year Five
2025-2029
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter
Total benefit payments
Defined Benefit Plan, Aggregate Expected Future Benefit Payments
The amount of the total benefits expected to be paid.
Weighted average assumptions used to determine net pension cost and net postretirement benefit cost
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate
Expected long-term rate of return on plan assets
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets
Weighted average assumptions used to determine benefit obligations
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate
Income Taxes
Income Tax Disclosure [Text Block]
Contractholder funds activity
Movement in Policyholder Contract Deposits [Roll Forward]
Balance, beginning of year
Deposits
Deposits to Contract Holder Funds
Increase in the liability for policyholder contract deposits resulting from amounts received during the period from the insured.
Interest credited
Interest to Contract Holder Funds
Increase in the liability for policyholder contract deposits resulting from interest credited during the period by the insurer to policy owner accounts.
Benefits
Benefits Paid from Contract Holder Funds
Decrease in the liability for policyholder contract deposits resulting from benefits paid out of contract holder funds.
Surrenders and partial withdrawals
Surrenders and Partial Withdrawals from Contract Holder Funds
Decrease in the liability for policyholder contract deposits resulting from surrenders and partial withdrawals out of contract holder funds.
Contract charges
Contract Charges
An amount that an insurer deducts from a contract holder's account, as compensation for services rendered.
Net transfers from separate accounts
Policyholder Contract Deposits, Separate Accounts Transfers, Net
Change in the liability for policyholder contract deposits resulting from net amounts transferred from separate accounts during the period.
Other adjustments
Policyholder Contract Deposits Adjustments, Other
Other adjustments during the period to the liability for policyholder contract deposits, not specified elsewhere in the taxonomy.
Balance, end of year
Schedule of amortized cost, gross unrealized gains (losses) and fair value for fixed income securities
Debt Securities, Available-for-sale [Table Text Block]
Schedule for fixed income securities based on contractual maturities
Investments Classified by Contractual Maturity Date [Table Text Block]
Schedule of realized capital gains and losses by asset type
Schedule of Gain (Loss) on Investments by Security Type [Table Text Block]
This item represents the schedule of realized gains and losses reported in the statement of income by type of securities.
Schedule of realized capital gains and losses by transaction type
Schedule of Gain (Loss) on Investments by Transaction Type [Table Text Block]
This item represents the schedule of realized gains and losses reported in the statement of income by type of transactions.
Realized gain (loss) on investments
Realized Gain (Loss) on Investments [Table Text Block]
Schedule of other-than-temporary impairment losses by asset type
Schedule of Other than Temporary Impairment Losses by Asset Type [Table Text Block]
This item represents the schedule of other-than-temporary impairment losses recognized in statement of income and other comprehensive income by asset type.
Schedule of other-than-temporary impairment losses on fixed income securities included in Accumulated Other Comprehensive Income
Schedule of Other than Temporary Impairment Losses on Fixed Income Securities Included in Accumulated Other Comprehensive Income [Table Text Block]
This item represents the schedule of other-than-temporary impairment losses on fixed income securities included in Accumulated Other Comprehensive Income.
Schedule of credit losses on fixed income securities recognized in earnings
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]
Schedule of unrealized net capital gains and losses
Schedule of Unrealized Capital Gains and Losses Included in Accumulated Other Comprehensive Income [Table Text Block]
This item represents the schedule of unrealized net capital gains and losses recorded in accumulated other comprehensive income by type of securities.
Schedule of change in unrealized net capital gains and losses
Schedule of Change in Unrealized Net Capital Gains and Losses [Table Text Block]
This item represents the schedule of change in unrealized net capital gains and losses by type of securities.
Schedule of gross unrealized losses and fair value of available for sale securities by length of time
Schedule of Unrealized Loss on Investments [Table Text Block]
Principal geographic distribution of commercial real estate represented in the mortgage portfolio
Schedule of Mortgage Loans by Location [Table Text Block]
Schedule of commercial real estate represented in the mortgage portfolio, by states representing a significant concentration of the total carrying value.
Types of property collateralizing the mortgage loans
Schedule of Mortgage Loans on Real Estate [Table Text Block]
Schedule of supplemental data and information pertaining to each mortgage loan receivable that equals or exceeds three percent of the carrying amount of mortgages, and other required disclosures.
Contractual maturities of the commercial mortgage loan portfolio
Schedule of Contractual Maturities of Commercial Mortgage Loan [Table Text Block]
This element represents the details of the commercial mortgage loan portfolio by contractual maturity.
Carrying value of non-impaired fixed and variable rate mortgage loans by debt service coverage ratio distribution
Financing Receivable Credit Quality Indicators [Table Text Block]
Net carrying value of impaired mortgage loans
Schedule of Net Carrying Value of Impaired Mortgage Loans [Table Text Block]
This element represents the schedule of net carrying value and the related valuation allowance of impaired mortgage loans.
Valuation allowance on impaired mortgage loans
Financing Receivable, Allowance for Credit Loss [Table Text Block]
Principal geographic distribution of municipal bond
Schedule of Principal Geographic Distribution of Municipal Bond [Table Text Block]
This element represents the schedule of principal geographic distribution of municipal bond.
Schedule of other investments, by type
Schedule of Other Investments, By Type [Table Text Block]
Schedule of Other Investments, By Type [Table Text Block]
Schedule III — Supplementary Insurance Information
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Disclosure [Text Block]
Reserve for life-contingent contract benefits
Schedule of Liability for Future Policy Benefits, by Product Segment [Table Text Block]
Key assumptions generally used in calculating the reserve for life-contingent contract benefits
Schedule of Liability for Future Policy Benefits, Assumptions [Table Text Block]
Disclosure of assumptions associated with the accrued obligation to policyholders that relates to insured events, and can be viewed as either (a) the present value of future benefits to be paid to or on behalf of policyholders and expenses less the present value of future net premiums payable under the insurance contracts or (b) the accumulated amount of net premiums already collected less the accumulated amount of benefits and expenses already paid to or on behalf of policyholders.
Contractholder funds
Schedule of Contract Holder Funds by Product [Table Text Block]
Reflects the carrying amount of and other relevant, pertinent information about the liability as of the balance sheet date for policyholder contract deposits by major product line segment.
Key contract provisions relating to contractholder funds
Schedule of Liability for Policyholder Contract Deposits, Assumptions [Table Text Block]
Disclosure of assumptions associated with the liability for estimated reserve for cumulative deposits plus credited interest and fund performance, less withdrawals, expenses and cost of insurance charges, as applicable.
Contractholder funds activity
Schedule of Contract Holder Funds Activity [Table Text Block]
Disclosure of the activity in the liability for estimated reserve for cumulative deposits plus credited interest and fund performance, less withdrawals, expenses and cost of insurance charges, as applicable.
Variable annuity contracts with guarantees
Schedule of Net Amount of Risk by Product and Guarantee [Table Text Block]
Liabilities for guarantees
Schedule of Minimum Guaranteed Benefit Liabilities [Table Text Block]
Defined Benefit Plan, Plan Assets, Category [Axis]
Defined Benefit Plan, Plan Assets, Category [Axis]
Defined Benefit Plan, Plan Assets, Category [Domain]
Defined Benefit Plan, Plan Assets, Category [Domain]
Short-term investments and other
Short Term and Other Investments [Member]
Represents the information pertaining to short-term and other investments.
Short-term investments
Defined Benefit Plan, Short-term Investments [Member]
Defined Benefit Plan, Short-term Investments [Member]
Equity securities
Defined Benefit Plan, Equity Securities [Member]
Fixed income securities
Defined Benefit Plan, Debt Security [Member]
Pension plans' assets
Notional amount of derivatives, minimum percentage of plan assets
Defined Benefit Plan, Asset Allocation, Derivatives, Minimum
Defined Benefit Plan, Asset Allocation, Derivatives, Minimum
Expected weighted average long-term rate of return on plan assets
Expected weighted average long-term rate of return on plan assets for the next fiscal year
Defined Benefit Plan, Assumptions Used For Calculating Net Periodic Benefit Cost Expected Long Term Return on Assets for Next Fiscal Year
Represents the long-term rate of return on plan assets for the next fiscal year, reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation, used as an assumption for calculating the net periodic benefit cost.
Expected weighted average long-term rate of return on primary employee plan assets for the next fiscal year
Defined Benefit Plan Assumptions Used for Calculating Net Periodic Benefit Cost Expected Long Term Return on Assets for Next Fiscal Year Primary Employee Plan
Represents the long-term rate of return on plan assets for the next fiscal year for the primary employee plan, reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation, used as an assumption for calculating the net periodic benefit cost.
Expected weighted average long-term rate of return on employee-agent plan assets for the next fiscal year
Defined Benefit Plan Assumptions Used for Calculating Net Periodic Benefit Cost Expected Long Term Return on Assets for Next Fiscal Year Employee Agent Plan
Represents the long-term rate of return on plan assets for the next fiscal year for the employee-agent plan, reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation, used as an assumption for calculating the net periodic benefit cost.
Arithmetic average of the annual actual return on plan assets for the last 10 years
Arithmetic Average of Annual Actual Return on Plan Assets for Last 10 Years
This element represents the arithmetic average of the annual actual return on plan assets for the last 10 years.
Arithmetic average of the annual actual return on plan assets for the last 5 years
Arithmetic Average of Annual Actual Return on Plan Assets for Last 5 Years
This element represents the arithmetic average of the annual actual return on plan assets for the last 5 years.
2017-1 Excess Catastrophe Reinsurance Contract
2017-1 Excess Catastrophe Reinsurance Contract [Member]
2017-1 Excess Catastrophe Reinsurance Contract [Member]
Gap Fill Excess Catastrophe Reinsurance Contract
Gap Fill Excess Catastrophe Reinsurance Contract [Member]
Gap Fill Excess Catastrophe Reinsurance Contract [Member]
Gap Fill Excess Catastrophe Reinsurance Contract, Layers
Gap Fill Excess Catastrophe Reinsurance Contract, Layers [Member]
Gap Fill Excess Catastrophe Reinsurance Contract, Layers [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Table]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Table]
United States government, government agencies and authorities
States, municipalities and political subdivisions
Foreign governments
Public utilities
Public Utility, Bonds [Member]
All other corporate bonds
Other Corporate Bonds [Member]
Asset-backed securities
Mortgage-backed securities
Total fixed maturities
Public utilities
Public Utility, Equities [Member]
Banks, trusts and insurance companies
Banks, Trust and Insurance, Equities [Member]
Industrial, miscellaneous and all other
Industrial, Miscellaneous, and All Others [Member]
Nonredeemable preferred stocks
Nonredeemable Preferred Stock [Member]
Total equity securities
Mortgage loans on real estate
Real estate
Real Estate Investment [Member]
Derivative instruments
Other long-term investments
Other Long-term Investments [Member]
Summary of Investments Other Than Investments in Related Parties
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost/amortized cost
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Cost
Fair value (if applicable)
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Fair Value
Amount shown in the Balance Sheet
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Amount
Restructuring Reserve
Restructuring Reserve [Roll Forward]
Restructuring liability as of December 31, 2018
Restructuring Reserve
Expense incurred
Increase (Decrease) in Restructuring Reserve
Adjustments to liability
Restructuring Reserve, Accrual Adjustment
Payments and non-cash pension settlements
Payments for Restructuring
Restructuring liability as of December 31, 2019
Earnings per common share:
Earnings Per Share, Attributable to Parent [Abstract]
Numerator:
Numerator [Abstract]
Less: Preferred stock dividends
Denominator:
Denominator [Abstract]
Weighted average common shares outstanding (in shares)
Effect of dilutive potential common shares:
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract]
Stock options (in shares)
Incremental Common Shares Attributable to Employee Stock Options
Aggregate awards of share options to be issued to an employee under a share-based compensation arrangement considered for purposes of computing diluted earnings per share.
Restricted stock units(non-participating) and performance stock awards (in shares)
Incremental Common Shares Attributable to Restricted Stock Units
Aggregate awards of restricted stock to be issued to an employee under a share-based compensation arrangement considered for purposes of computing diluted earnings per share.
Weighted average common and dilutive potential common shares outstanding (in shares)
Other Earnings Per Share Disclosures
Other Earnings Per Share Disclosures [Abstract]
Antidilutive stock options, exercise price exceeds market price (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Quarterly Results
Quarterly Financial Information [Table Text Block]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]
SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]
SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]
SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]
SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]
Allowance for reinsurance recoverables
SEC Schedule, 12-09, Allowance, Reinsurance Recoverable [Member]
Allowance for premium installment receivable
SEC Schedule, 12-09, Allowance, Uncollectible Premium Receivable [Member]
Allowance for deferred tax assets
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
Allowance for estimated losses on mortgage loans
SEC Schedule, 12-09, Allowance, Loan and Lease Loss, Real Estate [Member]
Allowance for estimated losses on agent loans
SEC Schedule, 12-09, Allowance, Loan and Lease Loss, Agent Loans [Member]
SEC Schedule, 12-09, Allowance, Loan and Lease Loss, Agent Loans [Member]
Valuation allowances and qualifying accounts
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation allowances and qualifying accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance as of beginning of period
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount
Additions, Charged to costs and expenses
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense
Additions, Other additions
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account
Deductions
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction
Balance as of end of period
Assumptions used to determine the fair value of options granted
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Summary of option activity
Share-based Payment Arrangement, Option, Activity [Table Text Block]
Changes in restricted stock units
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
Changes in performance stock units
Schedule of Nonvested Performance-based Units Activity [Table Text Block]
Amortized cost
Gross unrealized gains
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax
Gross unrealized losses
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax
Structured settlement annuities
Structured Settlement Annuities [Member]
Represents structured settlement annuities with life contingencies.
Other immediate fixed annuities
Other Immediate Fixed Annuities [Member]
Represents immediate annuities with life contingencies, other than structured settlement annuities.
Accident and health insurance
Accident and Health Insurance [Member]
Represents accident and health insurance coverage.
Other
Other Life Contingent Products [Member]
Represents products with life contingencies not otherwise specified in the taxonomy.
Reserve for life-contingent benefits:
Liability for Future Policy Benefit, by Product Segment [Line Items]
Total reserve for life-contingent contract benefits
Key assumptions generally used in calculating the reserve for life-contingent contract benefits:
Liability for Future Policy Benefits, Assumptions [Abstract]
Life contingent contract benefits, interest rate assumptions (as a percent)
Liability for Future Policy Benefits, Interest Rates Assumption
Interest rate in the range of interest rates used to calculate future benefits to be paid to or on behalf of policyholders and related expenses less the present value of future net premiums using assumptions such as estimates of expected investment yields, mortality, morbidity, terminations and expenses, applicable at the time the insurance contracts are made and cost of settling insured claims and cost incurred in the claim settlement process.
Premium deficiency reserve
Effects of Reinsurance [Table]
Effects of Reinsurance [Table]
Effects of Reinsurance [Line Items]
Effects of Reinsurance [Line Items]
Property and casualty insurance premiums written
Premiums Written, Net [Abstract]
Direct
Direct Premiums Written
Assumed
Assumed Premiums Written
Ceded
Ceded Premiums Written
Property and casualty insurance premiums written, net of recoverables
Premiums Written, Net
Property and casualty insurance premiums earned
Direct
Assumed
Ceded
Life premiums and contract charges
Life and Annuity Premiums and Contract Charges Net [Abstract]
Direct
Direct Life and Annuity Premiums and Contract Charges
Premiums and contract charges related to life insurance, accident and health insurance and annuity contracts that are written and earned directly by the insurer before adding contracts assumed from other insurers or subtracting any amounts assumed by other insurers.
Assumed
Assumed Life and Annuity Premiums and Contract Charges
Premiums and contract charges related to life insurance, accident and health insurance and annuity contracts that are assumed and earned from another insurer as a result of reinsurance arrangements.
Ceded
Life premiums and contract charges, net of recoverables
Company Restructuring
Restructuring and Related Activities Disclosure [Text Block]
Schedule of business segments revenue disclosures
Schedule of Business Segments Revenue Disclosure [Table Text Block]
The schedule of revenues by segment.
Schedule of business segments net income disclosures
Schedule of Business Segments Net Income (Loss) Disclosure [Table Text Block]
The schedule of net income (loss) by segment.
Additional significant financial performance data
Schedule of Segment Reporting Information, Additional Information [Table Text Block]
This element may be used to capture the additional significant financial performance data for each of the company's reportable segments.
Summarized data for total assets and investments
Reconciliation of Assets from Segment to Consolidated [Table Text Block]
Underwriting income
Underwriting Gain (Loss)
A measure that is not based on GAAP, which is calculated as premiums earned, less claims and claims expense ("losses"), amortization of deferred policy acquisition costs ("DAC"), operating costs and expenses and restructuring and related charges, as determined using GAAP.
Income tax expense on operations
Income Tax Expense (Benefit) on Operations
The income tax expense (benefit) pertaining to operating income or loss as measured by the entity for segment reporting purposes.
Realized capital gains and losses, after-tax
Realized Investment Gains (Losses) after Tax
The net realized gains or losses on investments during the period after tax effect.
Pension and other postretirement remeasurement gains and losses, after-tax
Defined Benefit Plan, Remeasurement Gain (Loss), After Tax
Defined Benefit Plan, Remeasurement Gain (Loss), After Tax
Gain (loss) on disposition of operations, after-tax
Disposal Group Not Discontinued Operation Gain (Loss) on Disposal after Tax
The gain (loss) resulting from the sale of a disposal group that is not a discontinued operation, net of tax effect.
Tax Legislation (expense) benefit
Other Tax Expense (Benefit)
Goodwill impairment
Business combination expenses, after-tax
Business Combination, Acquisition Related Costs, After-Tax
Business Combination, Acquisition Related Costs, After-Tax
Adjusted net income (loss)
Operating Income (Loss) after Tax
The operating income (loss), net of tax effect, as measured by the entity for segment reporting purposes.
Amortization of purchased intangibles, after-tax
Amortization Of Intangible Assets, Net Of Tax
Amortization Of Intangible Assets, Net Of Tax
Impairment of Intangible Assets (Excluding Goodwill), Net of Tax
Impairment of Intangible Assets (Excluding Goodwill), Net of Tax
Impairment of Intangible Assets (Excluding Goodwill), Net of Tax
Valuation changes on embedded derivatives that are not hedged, after-tax
Valuation Changes on Embedded Derivatives Not Hedged, after Tax
The amount of valuation changes on embedded derivatives that are not hedged, net of tax effect.
DAC and DSI amortization related to realized capital gains and losses and valuation changes on embedded derivatives that are not hedged, after-tax
Deferred Policy Acquisition and Sales Inducements Costs Amortization Accretion Related to Realized Capital Gains (Losses) and Valuation Changes on Embedded Derivatives Not Hedged, after Tax
The amount of deferred policy acquisition costs and sales inducement costs (amortization) accretion related to realized capital gains and losses and valuation changes on embedded derivatives that are not hedged, net of tax effect.
Activity in the reserve for property-liability insurance claims and claims expense
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]
Incurred and paid claims and claims expense
Short-duration Insurance Contracts, Claims Development [Table Text Block]
Average annual percentage payout of incurred claims by age, net of reinsurance
Short-duration Insurance Contracts, Schedule of Historical Claims Duration [Table Text Block]
Reconciliation of the net incurred claims and claims expense development
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Table Text Block]
Derivative Instruments, Gain (Loss) [Table]
Derivative Instruments, Gain (Loss) [Table]
Interest rate contracts
Interest Rate Contract [Member]
Equity and index contracts
Equity and Index Contract [Member]
An equity and index contract.
Embedded derivative financial instruments
Embedded Derivative Financial Instruments [Member]
Foreign currency contracts
Foreign Exchange Contract [Member]
Credit default contracts
Credit Default Swap [Member]
Operating costs and expenses
Derivative Instruments, Gain (Loss)
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net
Actual return on plan assets: Relating to assets sold during the period
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Sold
Actual return on plan assets: Relating to assets still held at the reporting date
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held
Purchases, sales and settlements, net
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement
Net transfers in and/or (out) of Level 3
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Assets Transferred into (out of) Level 3
Free Standing Derivative Assets
Free Standing Derivative Assets [Member]
This element represents the defined benefit plan assets invested in free standing assets derivatives.
Free Standing Derivative Liabilities
Free Standing Derivative Liabilities [Member]
This element represents the defined benefit plan assets invested in free standing liabilities derivatives.
Total plan assets at fair value
Defined Benefit Plan, Fair Value of Plan Assets (Liabilities), Gross
The fair value of plan assets before net receivables and reductions for liabilities other than for benefits.
Total plan assets at fair value, allocation (as a percent)
Defined Benefit Plan, Fair Value of Plan Assets (Liabilities) Percentage
This element represents the allocation of total plan assets at fair value.
Securities lending obligation
Defined Benefit Plan, Obligation to Return Securities Received as Collateral
Represents the plan's obligation to return securities lending collateral received under a securities lending program. Due to its relatively short-term nature, the outstanding balance of the obligation approximates fair value.
Derivatives counterparty and cash collateral netting
Defined Benefit Plan, Derivatives Counterparty and Cash Collateral Netting
Defined Benefit Plan, Derivatives Counterparty and Cash Collateral Netting
Other net plan assets
Defined Benefit Plan, Other Plan Assets (Liabilities), Fair Value
Represents other net assets of the plan, including interest and dividends receivable and net receivables related to settlements of investment transactions, such as purchases and sales.
Fair value of plan assets
Number of contracts, traditional market
Number Of Reinsurance Contracts, Traditional Market
Number Of Reinsurance Contracts, Traditional Market
Components of the plans' funded status reflected in the Consolidated Statements of Financial Position
Schedule of Net Funded Status [Table Text Block]
Change during the period in items not yet recognized as a component of net periodic cost
Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]
Components of net periodic cost
Schedule of Net Benefit Costs [Table Text Block]
Weighted average assumptions used to determine for pension plans and postretirement benefits plans the net benefit cost and benefit obligation
Defined Benefit Plan, Assumptions [Table Text Block]
Pension plans' weighted average target asset allocation and the actual percentage of plan assets
Schedule of Allocation of Plan Assets [Table Text Block]
Fair values of pension plan assets
Schedule of Fair Value of Plan Assets by Measurement Levels [Table Text Block]
Disclosure of fair value of the defined benefit plan assets by level within the fair value hierarchy in which the fair value measurements fall, segregating the fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2) and significant unobservable inputs (Level 3).
Rollforward of Level 3 plan assets
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]
Estimated future benefit payments expected to be paid
Schedule of Expected Benefit Payments [Table Text Block]
Schedule of ESOP benefit
Schedule of ESOP [Table Text Block]
Disclosure of the compensation cost recognized during the period related to the employee stock ownership plan benefit.
Single life
Single Life Insurance [Member]
Single life insurance is either a term or permanent policy insuring person with the proceeds payable on death.
Joint life
Joint Life Insurance [Member]
Joint life insurance is either a term or permanent policy insuring two or more persons with the proceeds payable on either the first or second death.
Retention level for contracts issued to individuals age 70 and over
Reinsurance Retention Level Age 70
The retention level per claim or life above which the risk is generally ceded to a reinsurer for contracts issued to individuals age 70 and over.
Retention level for certain large contracts meeting specific criteria
Reinsurance Retention Level Specific Criteria
The retention level per claim or life above which the risk is generally ceded to a reinsurer for certain large contracts that meet specific criteria.
Series A
Series A Noncumulative Preferred Stock [Member]
Series A preferred stock upon which unpaid dividends do not accrue.
Series C
Series C Noncumulative Preferred Stock [Member]
Series C preferred stock upon which unpaid dividends do not accrue.
Series D
Series D Noncumulative Preferred Stock [Member]
Series D preferred stock upon which unpaid dividends do not accrue.
Series G
Series G Noncumulative Preferred Stock [Member]
Series G Noncumulative Preferred Stock [Member]
Dividends payable, amount per share (in usd per share)
Dividends Payable, Amount Per Share
Aggregate dividend payment
Excess redemption price over carrying value
Preferred Stock Dividends Income Statement Impact, Redemption Price In Excess Of Carrying Value
Preferred Stock Dividends Income Statement Impact, Redemption Price In Excess Of Carrying Value
Statutory Financial Information and Dividend Limitations
Statutory Accounting Practices Disclosure1 [Text Block]
Statutory Accounting Practices Disclosure1 [Text Block]
Reinsurer Concentration Risk
Reinsurer Concentration Risk [Member]
A-
Standard & Poor's, A- Rating [Member]
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Disposal Group Name [Domain]
Disposal Group Name [Domain]
Lincoln Benefit Life Company
Lincoln Benefit Life Company [Member]
Represents information pertaining to Lincoln Benefit Life Company.
Citigroup Subsidiaries and Scottish Re
Citigroup and Scottish Re [Member]
Citigroup Subsidiaries and Scottish Re (U.S.) Inc.
Life and annuity premiums and contract charges
Reinsurance recoverables
Reinsurance Recoverables, Gross
Investments held by trust
Investments Held by Trust
Represents the carrying amount of the investments held by trust.
Gross life insurance in force
Gross Life Insurance in Force
The gross amount of life insurance in force as of the balance sheet date.
Life insurance in force ceded to unaffiliated reinsurers
Concentration risk, percentage
Concentration Risk, Percentage
Fair Value Measurement Inputs and Valuation Techniques [Table]
Fair Value Measurement Inputs and Valuation Techniques [Table]
Measurement Input Type [Axis]
Measurement Input Type [Axis]
Measurement Input Type [Domain]
Measurement Input Type [Domain]
Projected option cost
Measurement Input, Projected Option Cost [Member]
Measurement Input, Projected Option Cost [Member]
Derivatives embedded in life and annuity contracts - Equity-indexed and forward starting options
Weighted Average
Weighted Average [Member]
Fair value
Financial Liabilities Fair Value Disclosure
Weighted average
Embedded Derivative Asset (Liability) Net, Measurement Input
Other Pension Plan
Other Pension Plan [Member]
Defined benefit pension plans, estimated employer contributions in next fiscal year
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year
Participant contributions
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant
Amortized cost
Debt Securities, Available-for-sale, Maturity, Amortized Cost, Rolling Maturity [Abstract]
Due in one year or less
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost
Due after one year through five years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost
Due after five years through ten years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Amortized Cost
Due after ten years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost
Subtotal
Available for sale Securities, Debt Maturities with Single Maturity Date Amortized Cost
This item represents the total of all debt securities grouped by maturity dates excluding asset-backed securities, residential mortgage-backed securities and commercial mortgage-backed securities, at cost, net of adjustments made for accretion, amortization, other-than-temporary impairments, and hedging, if any, which are classified neither as held-to-maturity nor trading securities.
ABS and MBS
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost
Fair value
Debt Securities, Available-for-sale, Maturity, Fair Value, Rolling Maturity [Abstract]
Due in one year or less
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value
Due after one year through five years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value
Due after five years through ten years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value
Due after ten years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value
Subtotal
Available for sale Securities, Debt Maturities with Single Maturity Date Fair Value
This item represents the total of all debt securities grouped by maturity dates excluding asset-backed securities, residential mortgage-backed securities and commercial mortgage-backed securities, at fair value, which are classified neither as held-to-maturity nor trading securities.
ABS and MBS
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value
Fair value
Schedule of Goodwill by reporting unit
Schedule of Goodwill [Table Text Block]
Future amortization expense
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Schedule of indefinite-lived intangible assets
Schedule of Indefinite-Lived Intangible Assets [Table Text Block]
Schedule of finite-lived intangible assets
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Computation of basic and diluted earnings per common share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule of changes in accounting principles
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]
Reserve for Property-Liability Insurance Claims and Claims Expense [Abstract]
Reserve for Property-Liability Insurance Claims and Claims Expense [Abstract]
Total auto and homeowners insurance
Auto and Homeowners Insurance [Member]
Auto and Homeowners Insurance [Member]
Other
Insurance, Other [Member]
Incurred
Paid
Reserve for Property-Liability Insurance Claims and Claims Expense
Reserve for Property Liability Insurance Claims and Claims Expense Disclosure [Text Block]
Describes the various components of the reserve for property-liability future policy benefits and guaranteed minimum benefits, and for claims and claims adjustment expenses; the significant assumptions for estimating claims losses; causes of significant variances from prior periods (such as catastrophes, asbestos and environmental claims reserve losses); and reconciliations of beginning to ending reserve balances.
Percent of morbidity risk ceded for term-life insurance policies
Morbidity Risk Ceded Term Life Insurance Percent
The percentage of morbidity risk ceded to reinsurers on term life insurance policies prior to October 2009.
Number of unaffiliated reinsurers
Unaffiliated Reinsurers
Represents reinsurance agreements entered with non associated reinsurers to limit the risk of mortality and morbidity losses.
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Inputs Gain (Loss) [Table]
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Inputs Gain (Loss) [Table]
Summarization of information required and determined to be disclosed concerning assets and liabilities, including [financial] instruments, which are measured at fair value on a recurring basis using significant unobservable inputs (Level 3).
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Inputs Gain (Loss) [Line Items]
Fair value assets measured on recurring basis, change in unrealized gain (loss) included in earnings
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings
This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets). Such unrealized (holding) gains or losses relate to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).
Gains (losses) for Level 3 liabilities still held at the balance sheet date, included in earnings
Gains (losses) for Level 3 assets and liabilities still held at the balance sheet date, included in earnings
Fair Value Assets and Liabilities Measured on Recurring Basis Change in Unrealized Gain (Loss) Included in Earnings
This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets). Such unrealized (holding) gains or losses relate to those assets and liabilities still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).
Gains (losses) for Level 3 assets still held at the balance sheet date
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)
E&S Earthquake Agreement
E&S Earthquake Agreement [Member]
E&S Earthquake Agreement [Member]
Catastrophe insurance, quota share basis, percentage
Catastrophe Insurance, Quota Share Basis, Percentage
Catastrophe Insurance, Quota Share Basis, Percentage
Securities pledged as collateral
Defined Benefit Plan, Securities Lending Collateral [Member]
Defined Benefit Plan, Securities Lending Collateral [Member]
Private equity funds
Private Equity Funds [Member]
Mutual funds
Mutual Fund [Member]
Pension plans' weighted average target percentage of plan assets and the actual percentage of plan assets
Defined Benefit Plan, Information about Plan Assets [Abstract]
Target asset allocation
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage
Actual percentage of plan assets
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage
Fair value of plan assets
Schedule of changes in the restructuring liability
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]
Schedule of supplemental cash flow information from collateralized securities received
Schedule of Supplemental Cash Flow Information from Collateralized Securities Received [Table Text Block]
This element may be used to capture the complete disclosure pertaining to supplemental cash flow information about collateral received.
Liabilities for Guarantees on Long-Duration Contracts [Table]
Liabilities for Guarantees on Long-Duration Contracts [Table]
Liability for guarantees related to death benefits and interest-sensitive life products
Guaranteed Minimum Death Benefit and Interest Sensitive Life Insurance Guarantees [Member]
Represents insurance contracts pertaining to death benefits which provide that in the event of the insured's death, the beneficiary or other party to whom payment is to be made will receive the greater of the policyholder's or contract holder's account balance or another amount defined in the contract. And also represents contracts pertaining to interest-sensitive life products that contractually vary the amount and timing of premium payments without the approval of the insurer. Premium payments are credited to the policyholder balance, against which amounts are assessed for contract services and to which amounts are credited as income. The policyholder balance provides a base upon which interest accrues to the policyholder and, when compared with the death benefit amount, fixes the insurer's net amount at risk. The insurer can often adjust the schedule of amounts assessed for contract services and the rate at which interest is credited to the policyholder balance.
Liability for guarantees related to income benefits
Liability for guarantees related to accumulation and withdrawal benefits
Guaranteed Accumulation and Withdrawal Benefits [Member]
Represents accumulated guaranteed account value floor that is available to a contractor policy holder in cash. And minimum amount (usually stated as a percentage of premiums) that will be available for withdrawal pursuant to terms of the long-duration contract. Regardless of the contract value, the contract or policy holder is guaranteed the right to periodic withdrawals from the contract until the premiums deposited into the contract are withdrawn.
Guaranteed Insurance Contract, Type of Guarantee [Axis]
Guaranteed Insurance Contract, Type of Guarantee [Axis]
Guaranteed Insurance Contract, Type of Guarantee [Domain]
Guaranteed Insurance Contract, Type of Guarantee [Domain]
Other Guarantees
Other Guarantees [Member]
Represents liability for guarantee not otherwise specified in the taxonomy.
Liabilities for guarantees:
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Movement in Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross [Roll Forward]
Movement in Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross [Roll Forward]
Balance at beginning of period
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross
Less reinsurance recoverables
Liabilities for Guarantees on Long-Duration Contracts, Reinsurance Recoverable
Net balance at beginning of period
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Net
Incurred guarantee benefits
Liabilities for Guarantees on Long-Duration Contracts, Incurred Benefits
Paid guarantee benefits
Liabilities for Guarantees on Long-Duration Contracts, Payment for Benefits
Net change
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross, Period Increase (Decrease)
Net balance at end of period
Plus reinsurance recoverables
Balance at end of period
Insurance assessments, premium tax offsets
Loss Contingency Accrual, Insurance-related Assessment, Premium Tax Offset
Reasonably possible additional losses
Loss Contingency Reasonably Possible Additional Losses Pretax Estimate
Estimate of the reasonably possible pretax loss exposure in excess of the amount accrued for the entity's lawsuits, regulatory inquiries and other legal proceedings.