Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total revenue	$ 2,731	$ 2,608
Income before income taxes	481	514
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	1,064	1,014
Interest expense	729	646
Provision for credit losses	152	128
Net finance receivables and net investment in operating leases	133,003	126,164
Total assets	149,532	146,174	$ 146,089
Unallocated Other
Segment Reporting Information [Line Items]
Total revenue	0	(7)
Income before income taxes	18	(7)
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	0	0
Interest expense	0	0
Provision for credit losses	0	0
Net finance receivables and net investment in operating leases	(6,955)	(5,666)
Total assets	0	0
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	2,731	2,615
Income before income taxes	463	521
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	1,064	1,014
Interest expense	729	646
Provision for credit losses	152	128
Net finance receivables and net investment in operating leases	139,958	131,830
Total assets	149,532	146,174
Operating Segments [Member] | Americas [Member]
Segment Reporting Information [Line Items]
Total revenue	2,405	2,279
Income before income taxes	358	423
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	1,053	1,008
Interest expense	617	533
Provision for credit losses	144	113
Net finance receivables and net investment in operating leases	114,171	107,176
Total assets	119,990	117,856
Operating Segments [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Total revenue	228	251
Income before income taxes	77	81
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	11	6
Interest expense	61	70
Provision for credit losses	6	10
Net finance receivables and net investment in operating leases	20,840	20,612
Total assets	23,906	23,775
Operating Segments [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Total revenue	98	85
Income before income taxes	28	17
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	0	0
Interest expense	51	43
Provision for credit losses	2	5
Net finance receivables and net investment in operating leases	4,947	4,042
Total assets	$ 5,636	$ 4,543