Goodwill and Other Intangible Assets (Goodwill) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2024 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 5,940
Goodwill related to acquisitions	825
Foreign currency translation and other adjustments	(16)
Ending balance	6,749
Goodwill accumulated impairment loss	1,557
General rentals
Goodwill [Roll Forward]
Beginning balance	4,775
Goodwill related to acquisitions	5
Foreign currency translation and other adjustments	(7)
Ending balance	4,773
Specialty
Goodwill [Roll Forward]
Beginning balance	1,165
Goodwill related to acquisitions	820
Foreign currency translation and other adjustments	(9)
Ending balance	$ 1,976