Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Segment Reporting Information
Revenues	$ 743	$ 699	$ 2,182	$ 2,074
Segment Profit	197	164	587	490
Interest Expense	158	179	475	557
Depreciation on equipment leased to others	226	199	653	558
Provision for credit losses	38	40	106	91
Segment Assets	35,380		35,380		35,114
Capital expenditures	427	473	1,206	1,260
Operating Segments
Segment Reporting Information
Revenues	735	689	2,150	2,040
Segment Profit	214	180	624	559
Interest Expense	162	174	480	541
Depreciation on equipment leased to others	226	199	652	557
Provision for credit losses	37	39	104	93
Segment Assets	34,159		34,159		33,867
Capital expenditures	427	473	1,204	1,258
Unallocated
Segment Reporting Information
Revenues	15	16	53	53
Segment Profit	(22)	(20)	(56)	(56)
Interest Expense	12	14	35	44
Depreciation on equipment leased to others	0	0	1	1
Provision for credit losses	(1)	3	2	1
Segment Assets	1,623		1,623		1,595
Capital expenditures	0	0	1	1
Timing
Segment Reporting Information
Revenues	(7)	(6)	(21)	(19)
Segment Profit	(5)	1	(7)	(29)
Interest Expense	0	0	0	0
Depreciation on equipment leased to others	0	0	0	0
Provision for credit losses	2	(2)	0	(3)
Segment Assets	28		28		68
Capital expenditures	0	0	1	1
Methodology
Segment Reporting Information
Revenues	0	0	0	0
Segment Profit	10	3	26	16
Interest Expense	(16)	(9)	(40)	(28)
Depreciation on equipment leased to others	0	0	0	0
Provision for credit losses	0	0	0	0
Segment Assets	(218)		(218)		(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	(212)		(212)		(227)
Capital expenditures	0	0	0	0
North America | Operating Segments
Segment Reporting Information
Revenues	274	242	786	703
Segment Profit	97	77	264	212
Interest Expense	61	64	176	195
Depreciation on equipment leased to others	94	73	261	214
Provision for credit losses	(4)	(1)	5	(4)
Segment Assets	13,302		13,302		12,160
Capital expenditures	308	212	786	527
Europe and CPF | Operating Segments
Segment Reporting Information
Revenues	126	128	379	370
Segment Profit	30	25	105	92
Interest Expense	21	26	68	80
Depreciation on equipment leased to others	25	22	76	61
Provision for credit losses	18	25	37	51
Segment Assets	7,797		7,797		8,068
Capital expenditures	41	80	105	180
Asia/Pacific | Operating Segments
Segment Reporting Information
Revenues	94	97	281	306
Segment Profit	32	36	104	116
Interest Expense	30	35	88	103
Depreciation on equipment leased to others	6	6	18	19
Provision for credit losses	9	4	23	10
Segment Assets	4,973		4,973		5,251
Capital expenditures	6	8	23	32
Latin America | Operating Segments
Segment Reporting Information
Revenues	125	100	342	311
Segment Profit	37	19	100	78
Interest Expense	34	29	98	102
Depreciation on equipment leased to others	33	24	86	66
Provision for credit losses	8	13	12	24
Segment Assets	4,845		4,845		4,947
Capital expenditures	22	60	82	184
Mining | Operating Segments
Segment Reporting Information
Revenues	116	122	362	350
Segment Profit	18	23	51	61
Interest Expense	16	20	50	61
Depreciation on equipment leased to others	68	74	211	197
Provision for credit losses	6	(2)	27	12
Segment Assets	3,242		3,242		3,441
Capital expenditures	$ 50	$ 113	$ 208	$ 335