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Derivatives (Derivatives Pertaining to Hedged Items) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Derivatives | $ (1,921) | $ (575)
Net Derivative Gains (Losses) Recognized for Hedged Items | (4) | 10
Net Investment Income | 1,254 | 1,059
Policyholder Benefits and Claims | 2 | 0
Amount of Gains (Losses) Deferred in AOCI | 53 | (40)
Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Hedged Items | (3) | 10
Policyholder Benefits and Claims | 0 | 0
Amount of Gains (Losses) Deferred in AOCI | 0 | 0
Cash flow hedges: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Hedged Items | (1) | 0
Policyholder Benefits and Claims | 2 | 0
Amount of Gains (Losses) Deferred in AOCI | 53 | (40)
Net Derivative Gains (Losses) Recognized for Derivatives |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Derivatives | (1,917) | (585)
Net Derivative Gains (Losses) Recognized for Derivatives | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Derivatives | (1,920) | (584)
Net Derivative Gains (Losses) Recognized for Derivatives | Cash flow hedges: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Derivatives | 3 | (1)
Net Investment Income |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Investment Income | 13 | 15
Net Investment Income | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Investment Income | 0 | 0
Net Investment Income | Cash flow hedges: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Investment Income | 13 | 15
Interest rate | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Hedged Items | 0 | 0
Policyholder Benefits and Claims | 0 | 0
Amount of Gains (Losses) Deferred in AOCI | 0 | 0
Interest rate | Cash flow hedges: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Hedged Items | 0 | 0
Policyholder Benefits and Claims | 2 | 0
Amount of Gains (Losses) Deferred in AOCI | 9 | 2
Interest rate | Net Derivative Gains (Losses) Recognized for Derivatives | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Derivatives | (782) | 610
Interest rate | Net Derivative Gains (Losses) Recognized for Derivatives | Cash flow hedges: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Derivatives | 3 | 0
Interest rate | Net Investment Income | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Investment Income | 0 | 0
Interest rate | Net Investment Income | Cash flow hedges: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Investment Income | 0 | 1
Foreign currency exchange rate | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Hedged Items | (3) | 10
Policyholder Benefits and Claims | 0 | 0
Amount of Gains (Losses) Deferred in AOCI | 0 | 0
Foreign currency exchange rate | Cash flow hedges: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Hedged Items | (1) | 0
Policyholder Benefits and Claims | 0 | 0
Amount of Gains (Losses) Deferred in AOCI | 44 | (42)
Foreign currency exchange rate | Net Derivative Gains (Losses) Recognized for Derivatives | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Derivatives | 31 | (5)
Foreign currency exchange rate | Net Derivative Gains (Losses) Recognized for Derivatives | Cash flow hedges: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Derivatives | 0 | (1)
Foreign currency exchange rate | Net Investment Income | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Investment Income | 0 | 0
Foreign currency exchange rate | Net Investment Income | Cash flow hedges: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Investment Income | 13 | 14
Credit | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Hedged Items | 0 | 0
Policyholder Benefits and Claims | 0 | 0
Amount of Gains (Losses) Deferred in AOCI | 0 | 0
Credit | Net Derivative Gains (Losses) Recognized for Derivatives | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Derivatives | 6 | 10
Credit | Net Investment Income | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Investment Income | 0 | 0
Equity market | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Hedged Items | 0 | 0
Policyholder Benefits and Claims | 0 | 0
Amount of Gains (Losses) Deferred in AOCI | 0 | 0
Equity market | Net Derivative Gains (Losses) Recognized for Derivatives | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Derivatives | 711 | (109)
Equity market | Net Investment Income | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Investment Income | 0 | 0
Embedded | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Hedged Items | 0 | 0
Policyholder Benefits and Claims | 0 | 0
Amount of Gains (Losses) Deferred in AOCI | 0 | 0
Embedded | Net Derivative Gains (Losses) Recognized for Derivatives | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Derivative Gains (Losses) Recognized for Derivatives | (1,886) | (1,090)
Embedded | Net Investment Income | Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Net Investment Income | $ 0 | $ 0

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