Finance Receivables - Allowance for Loan Losses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for retail loan losses beginning balance			$ 2,096
Provision for loan losses	$ 235	$ 180	533	$ 500
Charge-offs			(1,012)
Allowance for retail loan losses ending balance	2,258		2,258
Retail Finance Receivables
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for retail loan losses beginning balance	2,166	1,987	2,062	1,839
Provision for loan losses	236	179	534	506
Charge-offs	(366)	(289)	(1,012)	(811)
Recoveries	196	171	573	510
Foreign currency translation and other	(8)	(4)	66	0
Allowance for retail loan losses ending balance	$ 2,224	$ 2,044	$ 2,224	$ 2,044