Goodwill and Other Intangible Assets (Other Intangible Assets) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Net Amount	$ 773	$ 452
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Remaining Amortization Period	4 years	3 years
Gross Carrying Amount	$ 206	$ 69
Accumulated Amortization	45	22
Net Amount	$ 161	$ 47
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Remaining Amortization Period	6 years	5 years
Gross Carrying Amount	$ 2,679	$ 2,349
Accumulated Amortization	2,071	1,949
Net Amount	$ 608	$ 400
Trade names and associated trademarks
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Remaining Amortization Period	3 years	3 years
Gross Carrying Amount	$ 14	$ 14
Accumulated Amortization	10	9
Net Amount	$ 4	$ 5