Segment Information - Segment Information (Details) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2025 USD ($) segment	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)
Segment Reporting Information
Number of operating segments | segment	6
External revenues	$ 860	$ 853
Interest expense	325	298
Depreciation on equipment leased to others	173	181
General, operating and administrative expenses	151	154
Provision for credit losses	29	7
Other segments items	8	(16)
Profit before income taxes	174	229
Total assets	34,423		$ 34,084
Capital Expenditures	170		233
Operating Segments
Segment Reporting Information
External revenues	848	835
Interest expense	304	273
Depreciation on equipment leased to others	173	181
General, operating and administrative expenses	110	113
Provision for credit losses	29	7
Other segments items	4	6
Profit before income taxes	228	255
Total assets	32,796		32,285
Capital Expenditures	159		228
Unallocated
Segment Reporting Information
External revenues	17	22
Interest expense	126	113
Depreciation on equipment leased to others	0	0
General, operating and administrative expenses	44	43
Provision for credit losses	0	0
Other segments items	0	(30)
Profit before income taxes	(153)	(104)
Total assets	1,813		1,921
Capital Expenditures	11		5
Reconciling Item | Timing
Segment Reporting Information
External revenues	(5)	(4)
Interest expense	0	0
Depreciation on equipment leased to others	0	0
General, operating and administrative expenses	(5)	(4)
Provision for credit losses	0	0
Other segments items	0	0
Profit before income taxes	0	0
Total assets	(8)		(12)
Capital Expenditures	0		0
Reconciling Item | Methodology
Segment Reporting Information
External revenues	0	0
Interest expense	(105)	(88)
Depreciation on equipment leased to others	0	0
General, operating and administrative expenses	2	2
Provision for credit losses	0	0
Other segments items	4	8
Profit before income taxes	99	78
Total assets	64		128
Capital Expenditures	0		0
Inter-segment Eliminations
Segment Reporting Information
Total assets	(242)		(238)
Capital Expenditures	0		0
North America | Operating Segments
Segment Reporting Information
External revenues	500	485
Interest expense	170	143
Depreciation on equipment leased to others	125	129
General, operating and administrative expenses	48	46
Provision for credit losses	19	19
Other segments items	3	4
Profit before income taxes	135	144
Total assets	17,948		17,800
Capital Expenditures	134		161
EAME | Operating Segments
Segment Reporting Information
External revenues	93	92
Interest expense	33	33
Depreciation on equipment leased to others	12	14
General, operating and administrative expenses	19	22
Provision for credit losses	1	(8)
Other segments items	1	1
Profit before income taxes	27	30
Total assets	4,907		4,668
Capital Expenditures	14		8
Asia/Pacific | Operating Segments
Segment Reporting Information
External revenues	62	66
Interest expense	24	26
Depreciation on equipment leased to others	1	1
General, operating and administrative expenses	17	19
Provision for credit losses	1	(1)
Other segments items	0	0
Profit before income taxes	19	21
Total assets	3,272		3,276
Capital Expenditures	4		2
Latin America | Operating Segments
Segment Reporting Information
External revenues	83	85
Interest expense	40	40
Depreciation on equipment leased to others	3	3
General, operating and administrative expenses	13	14
Provision for credit losses	1	(2)
Other segments items	1	1
Profit before income taxes	25	29
Total assets	2,533		2,423
Capital Expenditures	1		8
Mining | Operating Segments
Segment Reporting Information
External revenues	93	92
Interest expense	27	24
Depreciation on equipment leased to others	32	33
General, operating and administrative expenses	10	3
Provision for credit losses	9	0
Other segments items	(1)	0
Profit before income taxes	16	26
Total assets	3,268		3,306
Capital Expenditures	6		49
Power | Operating Segments
Segment Reporting Information
External revenues	17	15
Interest expense	10	7
Depreciation on equipment leased to others	0	1
General, operating and administrative expenses	3	9
Provision for credit losses	(2)	(1)
Other segments items	0	0
Profit before income taxes	6	$ 5
Total assets	868		812
Capital Expenditures	$ 0		$ 0