Debt - Special Purpose Entity (Details) - USD ($) $ in Millions		Sep. 30, 2020	Dec. 31, 2019
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Finance receivables, net		$ 1,066	$ 1,158
Finance receivables due after one year, net	[1]	1,899	2,082
Equipment on operating leases, net		301	364
Total Assets		15,352	15,047
Current portion of long-term debt, net		1,218	1,049
Long-term debt		3,836	3,233
Total Liabilities		9,686	$ 9,239
Current portion of long-term debt, net
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Unamortized debt issuance costs		1
Long term debt, net
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Unamortized debt issuance costs		1
Special Purpose Entity (SPE)
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Finance receivables, net		132
Finance receivables due after one year, net		182
Equipment on operating leases, net		9
Total Assets		323
Current portion of long-term debt, net		158
Long-term debt		157
Total Liabilities		$ 315

[1] Allowances at September 30, 2020 determined in accordance with ASU 2016-13 adopted effective January 1, 2020 - refer to Notes 2, 8 and 9 for additional information.