Leases Lessor arrangements- Equipment leased to others (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Jan. 01, 2019	Dec. 31, 2018
Equipment on operating leases
Property, plant and equipment - net	$ 12,842		$ 12,842		$ 13,548	$ 13,574
Operating Leases, Future Minimum Payments Receivable
Cost of Revenue	8,569	$ 9,022	27,513	$ 27,010
Remaining Three Months of 2019	276		276
2019						896
2020	827		827
2020						574
2021	486		486
2021						314
2022	250		250
2022						158
2023	117		117
2023						71
Thereafter	111		111
Thereafter						69
Total	2,067		2,067
Total						2,082
Revenues from sales-type and operating leases
Finance lease revenue	136		390
Operating lease revenue	317		941
Total	453		1,331
Equipment on operating leases
Equipment on operating leases
Property, Plant and Equipment, Gross	6,313		6,313			6,015
Less: Accumulated depreciation	(2,021)		(2,021)			(1,744)
Property, plant and equipment - net	$ 4,292		$ 4,292			$ 4,271