Derivatives - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 23,449,000,000		$ 23,449,000,000		$ 10,755,000,000
Derivative, Collateral, Right to Reclaim Cash	65,000,000		65,000,000		1,000,000
Cash collateral held	45,000,000		45,000,000		56,000,000
Securities Received as Collateral	0		0		1,000,000
Collateral Securities Repledged, Delivered, or Used	0		0		0
Open Swap Contract, Identifier [Axis]: CME SWAPS MARKETS (CME) DESIGNATED AS A HEDGE [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	700,000,000		700,000,000
Open Swap Contract, Identifier [Axis]: CME SWAPS MARKETS (CME) NON-DESIGNATED [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	6,500,000,000		6,500,000,000
Collateral Pledged
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Collateral, Right to Reclaim Cash	16,000,000		16,000,000		16,000,000
Asset Pledged as Collateral [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Collateral, Right to Reclaim Securities	6,000,000		6,000,000		8,000,000
Over the Counter [Member] | Asset Pledged as Collateral [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Collateral, Right to Reclaim Securities	196,000,000		196,000,000		57,000,000
Reclassification out of Accumulated Other Comprehensive Income [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Loss on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring	0	$ 0	0	$ 0
AOCI Attributable to Parent [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months			4,000,000
Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	19,231,000,000		19,231,000,000		8,032,000,000
Non-qualifying foreign currency derivatives	(39,000,000)	14,000,000	(34,000,000)	61,000,000
Not Designated as Hedging Instrument | Interest rate swaps [1]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	13,100,000,000		13,100,000,000		6,600,000,000
Not Designated as Hedging Instrument | Commodity Option
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Non-qualifying foreign currency derivatives	0	$ 0	0	$ 14,000,000
Not Designated as Hedging Instrument | Interest Rate Swaps and Futures [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	14,045,000,000		14,045,000,000		7,245,000,000
Designated as Hedging Instrument | Interest rate swaps [1]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 3,650,000,000		$ 3,650,000,000		$ 2,155,000,000