Debt - Assets and Liabilities Held by SPE (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Billed portion of finance receivables, net	$ 89	$ 94
Finance receivables, net	1,023	1,042
Finance receivables due after one year, net	1,893	1,934
Equipment on operating leases, net	254	253
Total Assets	13,082	13,223
Current portion of long-term debt, net	1,450	650
Long-term debt	2,821	3,596
Total Liabilities	8,669	8,556
Special Purpose Entity (SPE)
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Billed portion of finance receivables, net	31	27
Finance receivables, net	402	299
Finance receivables due after one year, net	597	362
Equipment on operating leases, net	7	8
Restricted cash	37	32
Total Assets	1,074	728
Current portion of long-term debt, net	451	350
Long-term debt	432	210
Total Liabilities	883	560
Debt issuance costs	$ 2	$ 1