0000899051 2021-06-17 2021-06-17 0000899051 all:SubordinatedDebenturesDue2053At5.10PercentMember 2021-06-17 2021-06-17 0000899051 us-gaap:SeriesGPreferredStockMember 2021-06-17 2021-06-17 0000899051 us-gaap:SeriesHPreferredStockMember 2021-06-17 2021-06-17 0000899051 all:SeriesIPreferredStockMember 2021-06-17 2021-06-17 0000899051 us-gaap:CommonStockMember exch:XNYS 2021-06-17 2021-06-17 0000899051 us-gaap:CommonStockMember exch:XCHI 2021-06-17 2021-06-17 0000899051 false Common Stock, par value $.01 per share ALL NYSE Common Stock, par value $.01 per share ALL CHX 8-K 2021-06-17 ALLSTATE CORP DE 1-11840 36-3871531 2775 Sanders Road Northbrook IL 60062 847 402-5000 false false false false 5.100% Fixed-to-Floating Rate Subordinated Debentures due 2053 ALL.PR.B NYSE Depositary Shares represent 1/1,000th of a share of 5.625% Noncumulative Preferred Stock, Series G ALL PR G NYSE Depositary Shares represent 1/1,000th of a share of 5.100% Noncumulative Preferred Stock, Series H ALL PR H NYSE Depositary Shares represent 1/1,000th of a share of 4.750% Noncumulative Preferred Stock, Series I ALL PR I NYSE false