v3.26.1
Derivative Instruments (Non Hedging Derivatives and Embedded Derivatives Effect on Income Statement) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net $ (76) $ (44) $ (246) $ (123)
Interest credited (617) (314) (1,097) (613)
Not Designated as Hedging Instrument        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net 6 61 23 72
Gain Loss On Investments Related To Change In Fair Value Of Derivatives Excluding Embedded Derivatives 88 50 31 48
Not Designated as Hedging Instrument | Interest Rate Swaps        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net (2) (1) 4 5
Not Designated as Hedging Instrument | Financial Futures        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net (25) (21) (19) (12)
Not Designated as Hedging Instrument | Currency Swap [Member]        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net 6 (2) 7 (5)
Not Designated as Hedging Instrument | Foreign Currency Forwards        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net (38) 40 (63) 62
Not Designated as Hedging Instrument | Consumer Price Index Swap [Member]        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net (3) (1) 4 (6)
Not Designated as Hedging Instrument | Equity Options        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net 82 11 54 5
Not Designated as Hedging Instrument | Embedded Derivatives In Modified Coinsurance Or Funds Withheld Arrangements        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net (3) 3 41 (8)
Not Designated as Hedging Instrument | Embedded Derivatives In Indexed Annuity [Member]        
Income Affect Of Non Hedging Derivatives [Line Items]        
Policyholder Account Balance, Period Increase (Decrease) (79) 8 (49) 32
Not Designated as Hedging Instrument | Total Return Swap        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net 3 6 (3) 0
Not Designated as Hedging Instrument | Interest Rate Swaption        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net 0 (1) 0 (1)
Not Designated as Hedging Instrument | Credit Default Swaps        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net 69 21 52 3
Not Designated as Hedging Instrument | Foreign Exchange Option        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net (2) (2) (3) (3)
Not Designated as Hedging Instrument | Credit Default Option        
Income Affect Of Non Hedging Derivatives [Line Items]        
Total investment related gains (losses), net $ (2) $ 0 $ (2) $ 0