Transfers of Receivables - Derivative Income and Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivative expense/(income) related to securitization transactions [Abstract]
Derivative expense/(income)	$ 392	$ 35	$ (594)
Securitization Transactions [Member]
Derivative expense/(income) related to securitization transactions [Abstract]
Derivative expense/(income)	(466)	(41)	234
Securitization Transactions [Member] | Related to Variable Interest Entity - Not VIE [Member]
Derivative expense/(income) related to securitization transactions [Abstract]
Derivative expense/(income)	120	15	(9)
Securitization Transactions [Member] | Other, Not Variable Interest Entity Related [Member]
Derivative expense/(income) related to securitization transactions [Abstract]
Derivative expense/(income)	(259)	(22)	113
Securitization Transactions [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Derivative expense/(income) related to securitization transactions [Abstract]
Derivative expense/(income)	$ (327)	$ (34)	$ 130