Goodwill and Other Intangible Assets (Goodwill) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Balance at beginning of period	$ 5,528	$ 5,168	$ 5,154
Goodwill related to acquisitions	529	371	(2)
Foreign currency translation and other adjustments	(31)	(11)	16
Balance at end of period	6,026	5,528	5,168
Goodwill accumulated impairment loss	1,557	1,557	1,557
General rentals
Goodwill [Roll Forward]
Balance at beginning of period	4,445	4,368	4,362
Goodwill related to acquisitions	549	76	1
Foreign currency translation and other adjustments	(14)	1	5
Balance at end of period	4,980	4,445	4,368
Specialty
Goodwill [Roll Forward]
Balance at beginning of period	1,083	800	792
Goodwill related to acquisitions	(20)	295	(3)
Foreign currency translation and other adjustments	(17)	(12)	11
Balance at end of period	$ 1,046	$ 1,083	$ 800