Goodwill and Other Identifiable Intangible Assets (Carrying Amount of Goodwill Attributable to Each Reportable Segment) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Goodwill [Roll Forward]
Beginning Balance	$ 6,115	$ 5,993
Acquisitions, including purchase accounting adjustments	2	139
Divestitures	2	5
Foreign currency impact and other	(425)	146
Goodwill impairment		(158)
Ending Balance	5,690	6,115
Traffic Solutions
Goodwill [Roll Forward]
Goodwill impairment		(158)
Performance Coatings Segment
Goodwill [Roll Forward]
Beginning Balance	1,913	1,936
Acquisitions, including purchase accounting adjustments	2	126
Divestitures	0	5
Foreign currency impact and other	(61)	14
Goodwill impairment		(158)
Ending Balance	1,854	1,913
Industrial Coatings Segment
Goodwill [Roll Forward]
Beginning Balance	1,206	1,197
Acquisitions, including purchase accounting adjustments		13
Divestitures	2	0
Foreign currency impact and other	(56)	(4)
Ending Balance	1,148	1,206
Global Architectural Coatings
Goodwill [Roll Forward]
Beginning Balance	2,996	2,860
Divestitures	0	0
Foreign currency impact and other	(308)	136
Ending Balance	$ 2,688	$ 2,996