Goodwill and Other Identifiable Intangible Assets (Carrying Amount of Goodwill Attributable to Each Reportable Segment) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Beginning Balance	$ 6,078	$ 6,248
Acquisitions, including purchase accounting adjustments	139	46
Divestitures	5	40
Foreign currency impact	146	(176)
Goodwill impairment	(158)
Ending Balance	6,200	6,078
Traffic Solutions
Goodwill [Roll Forward]
Goodwill impairment	(158)
Ending Balance	391
Performance Coatings Segment
Goodwill [Roll Forward]
Beginning Balance	4,881	5,034
Acquisitions, including purchase accounting adjustments	126	31
Divestitures	5	40
Foreign currency impact	150	(144)
Goodwill impairment	(158)
Ending Balance	4,994	4,881
Industrial Coatings Segment
Goodwill [Roll Forward]
Beginning Balance	1,197	1,214
Acquisitions, including purchase accounting adjustments	13	15
Divestitures	0	0
Foreign currency impact	(4)	(32)
Ending Balance	$ 1,206	$ 1,197