Goodwill and Other Intangible Assets (Other Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Total	$ 452	$ 615
Amortization expense	219	233	$ 250
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2023	165
2024	119
2025	86
2026	52
2027	20
Thereafter	10
Total	$ 452	$ 615
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Remaining Amortization Period	3 years	4 years
Gross Carrying Amount	$ 69	$ 65
Accumulated Amortization	22	13
Total	47	52
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	$ 47	$ 52
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Remaining Amortization Period	5 years	5 years
Gross Carrying Amount	$ 2,349	$ 2,389
Accumulated Amortization	1,949	1,835
Total	400	554
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	$ 400	$ 554
Trade names and associated trademarks
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Remaining Amortization Period	3 years	4 years
Gross Carrying Amount	$ 14	$ 15
Accumulated Amortization	9	6
Total	5	9
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	$ 5	$ 9