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Derivative Financial Instruments - Schedule of Derivative Instruments (Details) - USD ($) $ in Millions | Mar. 31, 2022 | Dec. 31, 2021
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Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | $ 21,214 |
Asset Fair Value |  |
Asset Fair Value | 110 |
Less: Gross amounts offset in the Consolidated Balance Sheets, Asset Fair Value | 0 |
Fair value of derivative financial instruments | 110 | $ 0
Less: Amounts subject to master netting agreements, Asset Fair Value | (13) |
Less: Cash collateral pledged(received) subject to master netting agreements | (29) |
Total net derivative fair value, Asset Fair Value | 68 |
Liability Fair Value |  |
Liability Fair Value | (204) |
Less: Gross amounts offset in the Consolidated Balance Sheets, Liability Fair Value | 0 |
Fair value of derivative financial instruments | (204) | $ 0
Less: Amounts subject to master netting agreements, Asset Liability Value | 13 |
Less: Cash collateral pledged(received) subject to master netting agreements | 2 |
Total net derivative fair value, Liability Fair Value | (189) |
Variation margin, amount reducing derivative asset | 191 |
Variation margin, amount reducing derivative liability | 60 |
Not Designated as Hedging Instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | 21,214 |
Asset Fair Value |  |
Asset Fair Value | 110 |
Liability Fair Value |  |
Liability Fair Value | (204) |
Not Designated as Hedging Instrument | Interest rate contracts |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | 20,211 |
Asset Fair Value |  |
Asset Fair Value | 106 |
Liability Fair Value |  |
Liability Fair Value | (199) |
Not Designated as Hedging Instrument | Foreign currency forward contracts |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | 181 |
Asset Fair Value |  |
Asset Fair Value | 4 |
Liability Fair Value |  |
Liability Fair Value | (4) |
Not Designated as Hedging Instrument | Other contracts |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount | 822 |
Asset Fair Value |  |
Asset Fair Value | 0 |
Liability Fair Value |  |
Liability Fair Value | $ (1) |

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