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Derivative Instruments (Non Hedging Derivatives and Embedded Derivatives Effect on Income Statement) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | $ (254) | $ 112 | $ (380) | $ 414
Policy acquisition costs and other insurance expenses | (393) | (339) | (748) | (672)
Interest credited | 138 | 218 | 279 | 364
Other revenues | 157 | 168 | 248 | 259
Gain Loss On Investments Related To Change In Fair Value Of Derivatives Excluding Embedded Derivatives | (114) | 30 | (204) | (21)
Not Designated as Hedging Instrument |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | (138) | 16 | (211) | 47
Not Designated as Hedging Instrument | Interest Rate Swaption |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | (6) | 0 | (6) | 0
Not Designated as Hedging Instrument | Interest Rate Swap [Member] |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | (44) | 33 | (96) | (37)
Not Designated as Hedging Instrument | Financial Futures |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | 24 | (9) | 31 | (19)
Not Designated as Hedging Instrument | Currency Swap [Member] |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | 11 | 3 | 18 | 12
Not Designated as Hedging Instrument | Foreign Currency Forwards |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | (76) | (1) | (99) | (9)
Not Designated as Hedging Instrument | Consumer Price Index Swap [Member] |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | (11) | 3 | 18 | 21
Not Designated as Hedging Instrument | Credit Default Swaps |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | (33) | 12 | (91) | 32
Not Designated as Hedging Instrument | Equity Options |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | 21 | (11) | 21 | (21)
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 | (56) | 16 | (89) | 66
Not Designated as Hedging Instrument | Embedded Derivatives In Indexed Annuity [Member] |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Policyholder Account Balance, Interest Credited |  | 13 |  |
Interest credited | 44 |  | 80 | 1
Not Designated as Hedging Instrument | Embedded Derivatives In Variable Annuity [Member] |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | $ (12) | $ (17) | $ 2 | $ 1

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