Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended												12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information
Revenues	$ 711	$ 699	$ 695	$ 680	$ 679	$ 678	$ 668	$ 668	$ 662	$ 668	$ 675	$ 640	$ 2,785	$ 2,693	$ 2,645
Segment Profit	204	164	141	185	116	160	135	173	111	122	151	114	694	584	498
Interest Expense													734	801	827
Depreciation on equipment leased to others													770	688	690
Provision for credit losses													101	163	177
Segment Assets	35,114				34,735				30,107				35,114	34,735	30,107
Capital expenditures													1,822	1,660	1,190
Operating Segments
Segment Reporting Information
Revenues													2,738	2,644	2,594
Segment Profit													759	651	551
Interest Expense													720	790	815
Depreciation on equipment leased to others													769	687	688
Provision for credit losses													103	159	188
Segment Assets	33,867				33,419				29,019				33,867	33,419	29,019
Capital expenditures													1,819	1,658	1,186
Unallocated
Segment Reporting Information
Revenues													73	73	73
Segment Profit													(73)	(93)	(92)
Interest Expense													53	61	69
Depreciation on equipment leased to others													1	1	2
Provision for credit losses													2	1	2
Segment Assets	1,595				1,529				1,253				1,595	1,529	1,253
Capital expenditures													1	0	3
Timing
Segment Reporting Information
Revenues													(26)	(24)	(22)
Segment Profit													(10)	(6)	6
Interest Expense													0	0	0
Depreciation on equipment leased to others													0	0	0
Provision for credit losses													(4)	3	(13)
Segment Assets	68				17				67				68	17	67
Capital expenditures													2	2	1
Methodology
Segment Reporting Information
Revenues													0	0	0
Segment Profit													18	32	33
Interest Expense													(39)	(50)	(57)
Depreciation on equipment leased to others													0	0	0
Provision for credit losses													0	0	0
Segment Assets	(189)				(61)				15				(189)	(61)	15
Capital expenditures													0	0	0
Intersegment Eliminations
Segment Reporting Information
Revenues													0	0	0
Segment Profit													0	0	0
Interest Expense													0	0	0
Depreciation on equipment leased to others													0	0	0
Provision for credit losses													0	0	0
Segment Assets	(227)				(169)				(247)				(227)	(169)	(247)
Capital expenditures													0	0	0
North America | Operating Segments
Segment Reporting Information
Revenues													946	938	959
Segment Profit													283	264	220
Interest Expense													259	270	303
Depreciation on equipment leased to others													293	274	276
Provision for credit losses													0	15	34
Segment Assets	12,160				11,309				10,870				12,160	11,309	10,870
Capital expenditures													782	565	530
Europe and CPF | Operating Segments
Segment Reporting Information
Revenues													505	467	506
Segment Profit													146	84	37
Interest Expense													110	134	166
Depreciation on equipment leased to others													86	76	89
Provision for credit losses													47	65	105
Segment Assets	8,068				7,785				6,922				8,068	7,785	6,922
Capital expenditures													242	243	118
Asia/Pacific | Operating Segments
Segment Reporting Information
Revenues													399	399	333
Segment Profit													156	134	113
Interest Expense													135	155	129
Depreciation on equipment leased to others													25	23	16
Provision for credit losses													9	24	28
Segment Assets	5,251				6,144				4,600				5,251	6,144	4,600
Capital expenditures													54	133	42
Latin America | Operating Segments
Segment Reporting Information
Revenues													414	389	350
Segment Profit													89	109	109
Interest Expense													137	141	127
Depreciation on equipment leased to others													93	64	47
Provision for credit losses													35	28	18
Segment Assets	4,947				4,969				3,992				4,947	4,969	3,992
Capital expenditures													272	172	175
Mining | Operating Segments
Segment Reporting Information
Revenues													474	451	446
Segment Profit													85	60	72
Interest Expense													79	90	90
Depreciation on equipment leased to others													272	250	260
Provision for credit losses													12	27	3
Segment Assets	3,441				3,212				2,635				3,441	3,212	2,635
Capital expenditures													$ 469	$ 545	$ 321