Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Revenues:
Owned equipment rentals	$ 1,530	$ 1,265
Re-rent revenue	35	25
Ancillary and other rental revenues:
Revenues	2,117	1,734
Topic 842
Revenues:
Owned equipment rentals	1,530
Re-rent revenue	35
Ancillary and other rental revenues:
Revenues	1,645
Topic 840
Revenues:
Owned equipment rentals		1,265
Re-rent revenue		25
Ancillary and other rental revenues:
Revenues		1,346
Topic 606
Ancillary and other rental revenues:
Revenues	472	388
Ancillary and Other Rental Revenues
Revenues:
Revenue from contract with customer	119	92
Ancillary and other rental revenues:
Other Income	111	77
Revenues	230	169
Ancillary and Other Rental Revenues \| Topic 842
Revenues:
Revenue from contract with customer	0
Ancillary and other rental revenues:
Other Income	80
Revenues	80
Ancillary and Other Rental Revenues \| Topic 840
Revenues:
Revenue from contract with customer		0
Ancillary and other rental revenues:
Other Income		56
Revenues		56
Ancillary and Other Rental Revenues \| Topic 606
Revenues:
Revenue from contract with customer	119	92
Ancillary and other rental revenues:
Other Income	31	21
Revenues	150	113
Equipment rentals
Ancillary and other rental revenues:
Revenues	1,795	1,459
Equipment rentals \| Topic 842
Ancillary and other rental revenues:
Revenues	1,645
Equipment rentals \| Topic 840
Ancillary and other rental revenues:
Revenues		1,346
Equipment rentals \| Topic 606
Ancillary and other rental revenues:
Revenues	150	113
Sales of rental equipment
Revenues:
Revenue from contract with customer	192	181
Sales of rental equipment \| Topic 606
Revenues:
Revenue from contract with customer	192	181
Sales of new equipment
Revenues:
Revenue from contract with customer	62	42
Sales of new equipment \| Topic 606
Revenues:
Revenue from contract with customer	62	42
Contractor supplies sales
Revenues:
Revenue from contract with customer	24	18
Contractor supplies sales \| Topic 606
Revenues:
Revenue from contract with customer	24	18
Service and other revenues
Revenues:
Revenue from contract with customer	44	34
Service and other revenues \| Topic 606
Revenues:
Revenue from contract with customer	$ 44	$ 34

The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue.

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Amount of revenue and income classified as other.

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