Income Taxes (Components of deferred tax assets and liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Reserves and allowances	$ 186	$ 165
Debt cancellation and other	18	16
Net operating loss and credit carryforwards	171	175
Interest carryforward	84	0
Operating lease assets	216	210
Total deferred tax assets	675	566
Valuation allowance	(19)	(9)
Total net deferred tax assets	656	557
Property and equipment, including rental equipment	(2,986)	(2,349)
Operating lease liabilities	(216)	(210)
Intangibles	(125)	(152)
Total deferred tax liability	(3,327)	(2,711)
Total net deferred tax liability	$ (2,671)	$ (2,154)