Goodwill and Other Identifiable Intangible Assets (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2024	Mar. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Line Items]
Goodwill, impairment loss				$ 158
Goodwill	$ 5,690		$ 5,690	6,115	$ 5,993
Impairment of intangible assets, indefinite-lived (excluding goodwill)			2	4
Impairment and other-related charges, net		$ 147	146	160	231
Aggregate amortization expense of identifiable intangible assets			$ 132	154	$ 145
Accelerated amortization expense	$ 6
Traffic Solutions
Goodwill [Line Items]
Goodwill, impairment loss				$ 158