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Consolidated Balance Sheets (Parenthetical) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
Statement of Financial Position [Abstract]    
Fixed maturities available-for-sale, amortized cost $ 72,991,000,000 $ 73,429,000,000
Fixed maturities available-for-sale, allowance for credit losses 24,000,000 22,000,000
Mortgage loans on real estate, allowance for credit losses 129,000,000 62,000,000
Reinsurance recoverable, allowance for credit loss $ 10,000,000 5,000,000
Reinsurance recoverable, fair value   $ 14,074,000,000
Preferred stock par value (in dollars per share) $ 1 $ 1
Preferred stock, liquidation preference $ 25,000 $ 25,000
Common stock par value (in dollars per share) $ 0.01 $ 0.01
Common stock authorized (in shares) 2,000,000,000 2,000,000,000
Common stock issued (in shares) 508,418,442 520,918,331
Common stock outstanding (in shares) 365,081,940 391,290,224
Treasury stock (in shares) 143,336,502 129,628,107