Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues:
Revenues, Topic 842	$ 2,483	$ 1,970
Revenues, Topic 606	802	554
Revenues, Total	3,285	2,524
Equipment rentals
Revenues:
Revenues, Topic 842	2,483	1,970
Revenues, Topic 606	257	205
Revenues, Total	2,740	2,175
Owned equipment rentals
Revenues:
Owned equipment rentals, Topic 842	2,266	1,797
Revenues, Total	2,266	1,797
Re-rent revenue
Revenues:
Re-rent revenue, Topic 842	52	49
Revenues, Total	52	49
Delivery and pick-up
Revenues:
Revenues, Topic 606	203	157
Revenues, Total	203	157
Other
Revenues:
Other, Topic 842	165	124
Revenues, Topic 606	54	48
Revenues, Total	219	172
Total ancillary and other rental revenues
Revenues:
Revenues, Topic 842	165	124
Revenues, Topic 606	257	205
Revenues, Total	422	329
Sales of rental equipment
Revenues:
Revenues, Topic 606	388	211
Revenues, Total	388	211
Sales of new equipment
Revenues:
Revenues, Topic 606	44	45
Revenues, Total	44	45
Contractor supplies sales
Revenues:
Revenues, Topic 606	34	29
Revenues, Total	34	29
Service and other revenues
Revenues:
Revenues, Topic 606	79	64
Revenues, Total	$ 79	$ 64