Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Segment Reporting Information
External Revenues	$ 673	$ 651	$ 2,011	$ 1,953
Profit before income taxes	126	146	457	439
Interest Expense	169	151	499	458
Depreciation on equipment leased to others	201	213	608	627
Provision for credit losses	48	29	82	96
Assets	33,683		33,683		$ 33,615
Capital expenditures	308	356	1,018	1,265
Operating Segments
Segment Reporting Information
External Revenues	646	638	1,934	1,918
Profit before income taxes	149	165	502	485
Interest Expense	161	146	476	456
Depreciation on equipment leased to others	200	212	607	625
Provision for credit losses	38	26	71	94
Assets	31,454		31,454		32,383
Capital expenditures	308	359	1,014	1,266
Unallocated
Segment Reporting Information
External Revenues	35	21	100	60
Profit before income taxes	(47)	(35)	(128)	(99)
Interest Expense	50	32	139	81
Depreciation on equipment leased to others	0	0	0	0
Provision for credit losses	0	0	0	1
Assets	2,718		2,718		1,688
Capital expenditures	0	(3)	4	0
Timing
Segment Reporting Information
External Revenues	(8)	(8)	(23)	(25)
Profit before income taxes	(13)	(7)	(20)	(13)
Interest Expense	0	0	0	0
Depreciation on equipment leased to others	1	1	1	2
Provision for credit losses	10	3	11	1
Assets	16		16		27
Capital expenditures	0	0	0	(1)
Methodology
Segment Reporting Information
External Revenues	0	0	0	0
Profit before income taxes	37	23	103	66
Interest Expense	(42)	(27)	(116)	(79)
Depreciation on equipment leased to others	0	0	0	0
Provision for credit losses	0	0	0	0
Assets	(225)		(225)		(220)
Capital expenditures	0	0	0	0
Inter-segment Eliminations
Segment Reporting Information
External Revenues	0	0	0	0
Profit before income taxes	0	0	0	0
Interest Expense	0	0	0	0
Depreciation on equipment leased to others	0	0	0	0
Provision for credit losses	0	0	0	0
Assets	(280)		(280)		(263)
Capital expenditures	0	0	0	0
North America | Operating Segments
Segment Reporting Information
External Revenues	338	310	989	927
Profit before income taxes	90	79	262	255
Interest Expense	77	70	224	216
Depreciation on equipment leased to others	130	123	388	350
Provision for credit losses	11	10	25	23
Assets	14,703		14,703		14,925
Capital expenditures	187	281	722	933
Europe | Operating Segments
Segment Reporting Information
External Revenues	68	68	200	202
Profit before income taxes	20	21	62	63
Interest Expense	9	8	27	25
Depreciation on equipment leased to others	19	21	60	62
Provision for credit losses	2	1	0	3
Assets	4,084		4,084		3,834
Capital expenditures	25	44	71	120
Asia/Pacific | Operating Segments
Segment Reporting Information
External Revenues	68	65	197	190
Profit before income taxes	25	20	73	56
Interest Expense	22	21	64	62
Depreciation on equipment leased to others	5	8	19	21
Provision for credit losses	1	1	(5)	6
Assets	3,924		3,924		3,620
Capital expenditures	2	4	5	73
Latin America and CPF | Operating Segments
Segment Reporting Information
External Revenues	101	122	335	367
Profit before income taxes	2	31	48	76
Interest Expense	41	36	124	118
Depreciation on equipment leased to others	10	15	33	47
Provision for credit losses	20	17	56	59
Assets	6,371		6,371		7,270
Capital expenditures	6	11	48	35
Mining | Operating Segments
Segment Reporting Information
External Revenues	71	73	213	232
Profit before income taxes	12	14	57	35
Interest Expense	12	11	37	35
Depreciation on equipment leased to others	36	45	107	145
Provision for credit losses	4	(3)	(5)	3
Assets	2,372		2,372		$ 2,734
Capital expenditures	$ 88	$ 19	$ 168	$ 105