Goodwill and Identifiable Intangible Assets - Schedule of Goodwill (Details) $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 1,591
Goodwill from acquisitions	109
Foreign currency translation	18
Goodwill, ending balance	1,718
Performance Coatings
Goodwill [Roll Forward]
Goodwill, beginning balance	1,513
Goodwill from acquisitions	109
Foreign currency translation	18
Goodwill, ending balance	1,640
Mobility Coatings
Goodwill [Roll Forward]
Goodwill, beginning balance	78
Goodwill from acquisitions	0
Foreign currency translation	0
Goodwill, ending balance	$ 78