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Derivative Financial Instruments - Schedule of Derivative Instruments (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Asset Fair Value |  |
Asset Fair Value | $ 640 | $ 159
Less: Gross amounts offset in the Consolidated Balance Sheets, Asset Fair Value | 0 | 0
Derivative assets | 640 | 159
Less: Amounts subject to master netting agreements, Asset Fair Value | (97) | (13)
Less: Cash collateral pledged (received) subject to master netting agreements | (405) | (124)
Total net derivative fair value, Asset Fair Value | 138 | 22
Liability Fair Value |  |
Liability Fair Value | (636) | (486)
Less: Gross amounts offset in the Consolidated Balance Sheets, Liability Fair Value | 0 | 0
Derivative liability | (636) | (486)
Less: Amounts subject to master netting agreements, Asset Liability Value | 97 | 13
Less: Cash collateral pledged(received) subject to master netting agreements | 39 | 0
Total net derivative fair value, Liability Fair Value | (500) | (473)
Variation margin, amount reducing derivative asset | 66 | 376
Variation margin, amount reducing derivative liability | 37 | 19
Qualifying Hedges |  |
Liability Fair Value |  |
Derivative instruments and hedges, assets | 4 |
Derivative instruments and hedges, liabilities | 0 |
Qualifying Hedges | Interest rate contracts |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | 815 | 0
Asset Fair Value |  |
Asset Fair Value | 0 | 0
Liability Fair Value |  |
Liability Fair Value | 0 | 0
Non-qualifying Hedges |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | 34,673 | 18,805
Asset Fair Value |  |
Asset Fair Value | 640 | 159
Liability Fair Value |  |
Liability Fair Value | (636) | (486)
Non-qualifying Hedges | Interest rate contracts |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | 24,548 | 18,173
Asset Fair Value |  |
Asset Fair Value | 530 | 158
Liability Fair Value |  |
Liability Fair Value | (518) | (482)
Non-qualifying Hedges | Foreign currency forward contracts |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | 9,142 | 125
Asset Fair Value |  |
Asset Fair Value | 104 | 1
Liability Fair Value |  |
Liability Fair Value | (117) | (4)
Non-qualifying Hedges | Foreign exchange spot contracts |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | 179 | 0
Liability Fair Value |  |
Net fair value | 0 | 0
Non-qualifying Hedges | Other contracts |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | 983 | 507
Asset Fair Value |  |
Asset Fair Value | 6 | 0
Liability Fair Value |  |
Liability Fair Value | $ (1) | $ 0

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