Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Segment Reporting Information
Revenues	$ 728	$ 695	$ 1,439	$ 1,375
Segment Profit	208	141	390	326
Interest Expense	155	187	317	378
Depreciation on equipment leased to others	213	184	427	359
Provision for credit losses	31	34	68	51
Segment Assets	36,464		36,464		35,114
Capital expenditures	510	451	779	787
Operating Segments
Segment Reporting Information
Revenues	718	682	1,415	1,351
Segment Profit	218	190	410	379
Interest Expense	156	183	318	367
Depreciation on equipment leased to others	212	184	426	358
Provision for credit losses	31	24	67	54
Segment Assets	35,194		35,194		33,867
Capital expenditures	508	450	777	785
Unallocated
Segment Reporting Information
Revenues	17	20	38	37
Segment Profit	(21)	(20)	(34)	(36)
Interest Expense	11	15	23	30
Depreciation on equipment leased to others	1	0	1	1
Provision for credit losses	3	(1)	3	(2)
Segment Assets	1,664		1,664		1,595
Capital expenditures	1	0	1	1
Timing
Segment Reporting Information
Revenues	(7)	(7)	(14)	(13)
Segment Profit	0	(39)	(2)	(30)
Interest Expense	0	0	0	0
Depreciation on equipment leased to others	0	0	0	0
Provision for credit losses	(3)	11	(2)	(1)
Segment Assets	26		26		68
Capital expenditures	1	1	1	1
Methodology
Segment Reporting Information
Revenues	0	0	0	0
Segment Profit	11	10	16	13
Interest Expense	(12)	(11)	(24)	(19)
Depreciation on equipment leased to others	0	0	0	0
Provision for credit losses	0	0	0	0
Segment Assets	(196)		(196)		(189)
Capital expenditures	0	0	0	0
Inter-segment Eliminations
Segment Reporting Information
Revenues	0	0	0	0
Segment Profit	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
Segment Assets	(224)		(224)		(227)
Capital expenditures	0	0	0	0
North America | Operating Segments
Segment Reporting Information
Revenues	265	236	512	461
Segment Profit	90	70	167	135
Interest Expense	55	66	115	131
Depreciation on equipment leased to others	87	71	167	141
Provision for credit losses	6	(2)	9	(3)
Segment Assets	13,248		13,248		12,160
Capital expenditures	348	207	478	315
Europe and CPF | Operating Segments
Segment Reporting Information
Revenues	123	120	253	242
Segment Profit	34	30	75	67
Interest Expense	23	26	47	54
Depreciation on equipment leased to others	25	20	51	39
Provision for credit losses	10	17	19	26
Segment Assets	8,253		8,253		8,068
Capital expenditures	33	69	64	100
Asia/Pacific | Operating Segments
Segment Reporting Information
Revenues	95	103	187	209
Segment Profit	34	34	72	80
Interest Expense	30	33	58	68
Depreciation on equipment leased to others	6	6	12	13
Provision for credit losses	7	4	14	6
Segment Assets	5,268		5,268		5,251
Capital expenditures	7	13	17	24
Latin America | Operating Segments
Segment Reporting Information
Revenues	112	105	217	211
Segment Profit	37	32	63	59
Interest Expense	32	37	64	73
Depreciation on equipment leased to others	26	22	53	42
Provision for credit losses	0	2	4	11
Segment Assets	4,985		4,985		4,947
Capital expenditures	25	60	60	124
Mining | Operating Segments
Segment Reporting Information
Revenues	123	118	246	228
Segment Profit	23	24	33	38
Interest Expense	16	21	34	41
Depreciation on equipment leased to others	68	65	143	123
Provision for credit losses	8	3	21	14
Segment Assets	3,440		3,440		3,441
Capital expenditures	$ 95	$ 101	$ 158	$ 222