Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Segment Reporting Information
Revenues	$ 678	$ 668	$ 2,014	$ 1,983
Segment Profit	153	126	467	393
Interest Expense	201	211	603	624
Depreciation on equipment leased to others	174	173	515	520
Provision for credit losses	39	38	92	124
Segment Assets	33,834		33,834		30,112
Capital expenditures	432	311	1,232	830
Reportable Segment
Segment Reporting Information
Revenues	670	656	1,985	1,946
Segment Profit	158	153	530	446
Interest Expense	199	208	587	609
Depreciation on equipment leased to others	175	172	515	517
Provision for credit losses	50	39	92	127
Segment Assets	32,533		32,533		28,927
Capital expenditures	432	310	1,231	826
North America
Segment Reporting Information
Revenues	235	239	713	734
Segment Profit	59	73	198	176
Interest Expense	74	78	219	241
Depreciation on equipment leased to others	69	69	204	210
Provision for credit losses	4	(9)	5	17
Segment Assets	11,969		11,969		11,177
Capital expenditures	201	167	385	380
Europe and CPF
Segment Reporting Information
Revenues	118	121	351	372
Segment Profit	27	(9)	90	35
Interest Expense	29	38	95	111
Depreciation on equipment leased to others	19	22	58	68
Provision for credit losses	18	43	35	82
Segment Assets	7,516		7,516		6,601
Capital expenditures	41	24	184	73
Asia/Pacific
Segment Reporting Information
Revenues	105	89	292	244
Segment Profit	35	34	101	88
Interest Expense	41	35	108	95
Depreciation on equipment leased to others	7	4	17	12
Provision for credit losses	7	5	19	18
Segment Assets	5,442		5,442		4,557
Capital expenditures	25	8	95	34
Latin America
Segment Reporting Information
Revenues	98	93	287	259
Segment Profit	20	37	86	89
Interest Expense	32	35	96	96
Depreciation on equipment leased to others	17	11	46	31
Provision for credit losses	16	(3)	23	8
Segment Assets	4,367		4,367		3,947
Capital expenditures	41	18	90	92
Mining
Segment Reporting Information
Revenues	114	114	342	337
Segment Profit	17	18	55	58
Interest Expense	23	22	69	66
Depreciation on equipment leased to others	63	66	190	196
Provision for credit losses	5	3	10	2
Segment Assets	3,239		3,239		2,645
Capital expenditures	124	93	477	247
Unallocated
Segment Reporting Information
Revenues	14	18	46	54
Segment Profit	(21)	(8)	(65)	(33)
Interest Expense	10	3	34	15
Depreciation on equipment leased to others	(1)	1	0	3
Provision for credit losses	(1)	(2)	0	0
Segment Assets	1,408		1,408		1,350
Capital expenditures	0	0	0	3
Timing
Segment Reporting Information
Revenues	(6)	(6)	(17)	(17)
Segment Profit	7	(8)	(7)	(11)
Interest Expense	1	3	3	8
Depreciation on equipment leased to others	0	0	0	0
Provision for credit losses	(10)	1	0	(3)
Segment Assets	38		38		67
Capital expenditures	0	1	1	1
Methodology
Segment Reporting Information
Revenues	0	0	0	0
Segment Profit	9	(11)	9	(9)
Interest Expense	(9)	(3)	(21)	(8)
Depreciation on equipment leased to others	0	0	0	0
Provision for credit losses	0	0	0	0
Segment Assets	(15)		(15)		15
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	(130)		(130)		(247)
Capital expenditures	$ 0	$ 0	$ 0	$ 0