Condensed Consolidated Balance Sheets Parentheticals - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale, Amortized Cost	$ 41,723	$ 39,533
Debt Securities, Available-for-Sale, Allowance for Credit Loss	20	12
ACL	(117)	(109)
Reinsurance recoverables (net of allowance for uncollectible reinsurance of $109 and $105)	$ (109)	$ (105)
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	50,000,000	50,000,000
Preferred Stock, Shares Issued	13,800	13,800
Preferred Stock, Liquidation Preference, Value	$ 345	$ 345
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	1,500,000,000	1,500,000,000
Common Stock, Shares, Issued	344,960,228	344,960,228
Treasury Stock, Common, Shares	42,523,441	29,848,980
Commercial Loan [Member]
Financing Receivable, Allowance for Credit Loss	$ 46	$ 36