Summary of Significant Accounting Policies (Additional Information) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($) segment	Dec. 31, 2025 USD ($)	Dec. 31, 2025 USD ($) segement	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Advertising costs expensed		$ 199		$ 203	$ 193
Research and development – total		446		447	446
Less: depreciation on research facilities		23		24	22
Research and development, net		423		423	424
Number of operating segments	3		10
Impairment of intangible assets, indefinite-lived (excluding goodwill)		2
Supplier finance obligation, beginning of period	$ 245	245	$ 245	251	286
Asset retirement obligation	$ 12	$ 12	$ 12	$ 11
Number of reportable business segments | segment	3
Traffic Solutions
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill, impairment loss					$ 158
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Identifiable intangible assets with finite lives estimated useful lives	1 year	1 year	1 year
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Identifiable intangible assets with finite lives estimated useful lives	30 years	30 years	30 years