Derivative Financial Instruments - Schedule of Derivative Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount
Asset Fair Value
Asset Fair Value	149
Less: Gross amounts offset in the Consolidated Balance Sheets, Asset Fair Value	0
Derivative assets	149	$ 3
Less: Amounts subject to master netting agreements, Asset Fair Value	(6)
Less: Cash collateral pledged(received) subject to master netting agreements	(129)
Total net derivative fair value, Asset Fair Value	14
Liability Fair Value
Liability Fair Value	(500)
Less: Gross amounts offset in the Consolidated Balance Sheets, Liability Fair Value	0
Derivative liability	(500)	$ (1)
Less: Amounts subject to master netting agreements, Asset Liability Value	6
Less: Cash collateral pledged(received) subject to master netting agreements	0
Total net derivative fair value, Liability Fair Value	(494)
Variation margin, amount reducing derivative asset	413
Variation margin, amount reducing derivative liability	20
Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount	19,518
Asset Fair Value
Asset Fair Value	149
Liability Fair Value
Liability Fair Value	(500)
Not Designated as Hedging Instrument \| Interest rate contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount	18,604
Asset Fair Value
Asset Fair Value	143
Liability Fair Value
Liability Fair Value	(500)
Not Designated as Hedging Instrument \| Foreign currency forward contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount	145
Asset Fair Value
Asset Fair Value	6
Liability Fair Value
Liability Fair Value	0
Not Designated as Hedging Instrument \| Other contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount	769
Asset Fair Value
Asset Fair Value	0
Liability Fair Value
Liability Fair Value	$ 0

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