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Derivatives and Hedge Accounting - Notional Amounts and Fair Values of Derivative Instruments (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Gross Derivative Assets |  |
Notional Amount | $ 4,896 | $ 59,589
Fair Value | 624 | 1,292
Counterparty netting | (270) | (450)
Cash Collateral | (304) | (711)
Total derivative assets | 50 | 131
Gross Derivative Liabilities |  |
Notional Amount | 3,702 | 10,973
Fair Value | 622 | 952
Counterparty netting | (270) | (450)
Cash Collateral | (201) | (249)
Total derivative liabilities on consolidated balance sheet | 151 | 253
Bifurcated embedded derivatives assets, fair value | 3,200 | 3,400
Bifurcated embedded derivative liabilities, fair value | 0 | 0
Derivatives designated as hedging instruments | Foreign exchange contracts |  |
Gross Derivative Assets |  |
Notional Amount | 879 | 933
Fair Value | 66 | 58
Gross Derivative Liabilities |  |
Notional Amount | 906 | 1,296
Fair Value | 109 | 164
Derivatives not designated as hedging instruments | Interest rate contracts |  |
Gross Derivative Assets |  |
Notional Amount | 841 | 14,657
Fair Value | 277 | 741
Gross Derivative Liabilities |  |
Notional Amount | 913 | 1,165
Fair Value | 304 | 352
Derivatives not designated as hedging instruments | Foreign exchange contracts |  |
Gross Derivative Assets |  |
Notional Amount | 3,095 | 4,019
Fair Value | 230 | 393
Gross Derivative Liabilities |  |
Notional Amount | 1,707 | 8,008
Fair Value | 158 | 400
Derivatives not designated as hedging instruments | Equity contracts |  |
Gross Derivative Assets |  |
Notional Amount | 29 | 36,045
Fair Value | 20 | 66
Gross Derivative Liabilities |  |
Notional Amount | 29 | 0
Fair Value | 20 | 0
Derivatives not designated as hedging instruments | Credit contracts |  |
Gross Derivative Assets |  |
Notional Amount | 52 | 1,804
Fair Value | 31 | 33
Gross Derivative Liabilities |  |
Notional Amount | 147 | 504
Fair Value | 31 | 36
Derivatives not designated as hedging instruments | Credit contracts | CDS |  |
Gross Derivative Liabilities |  |
Notional Amount | 48 | 50
Fair Value | 30 | 32
Derivatives not designated as hedging instruments | Other contracts |  |
Gross Derivative Assets |  |
Notional Amount | 0 | 2,131
Fair Value | 0 | 1
Gross Derivative Liabilities |  |
Notional Amount | 0 | 0
Fair Value | $ 0 | $ 0

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