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Acquisitions (Narrative) (Details) $ in Millions		12 Months Ended
Acquisitions (Narrative) (Details) $ in Millions	Dec. 07, 2022 USD ($)	Dec. 31, 2023 USD ($) state	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Nov. 30, 2022 USD ($)
Business Acquisition [Line Items]
Amortization expense		$ 271	$ 219	$ 233
6 percent Senior Secured Notes due 2029 \| Senior notes
Business Acquisition [Line Items]
Debt instrument, face amount			$ 1,500		$ 1,500
Stated interest rate		600.00%			6.00%
Ahern Rentals
Business Acquisition [Line Items]
Number of states in which entity operates \| state		30
Consideration transferred	$ 1,988
Amortization expense		$ 7