Leases (Details 2) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment
Carrying amount of residual assets covered by residual value guarantees and subject to operating leases	$ 23	$ 25
Payments due for operating leases
Remaining Nine Months of 2019	629
2020	553
2021	294
2022	131
2023	52
Thereafter	20
Total	1,679
Scheduled minimum rental payments for operating leases
2019		808
2020		503
2021		257
2022		115
2023		41
Thereafter		15
Total		1,739
Equipment on operating leases
Property, Plant and Equipment
Equipment on operating leases, at cost	5,120	5,201
Less: Accumulated depreciation	(1,649)	(1,639)
Equipment on operating leases, net	3,471	3,562
Caterpillar | Equipment on operating leases
Property, Plant and Equipment
Equipment on operating leases, net	$ 52	$ 45