Commitments and Contingencies - Schedule of Fair Value, Off-balance Sheet Risks (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Financing assets (excluding leases)
Other Commitments [Line Items]
Credit related commitments	$ 22,463	$ 13,011
Standby letters of credit
Other Commitments [Line Items]
Credit related commitments	351	92
Other letters of credit
Other Commitments [Line Items]
Credit related commitments	34	24
Deferred Purchase Agreements
Other Commitments [Line Items]
Credit related commitments	1,897	0
Lessor commitments
Other Commitments [Line Items]
Credit related commitments	$ 701	$ 0