Goodwill and Other Identifiable Intangible Assets (Carrying Amount of Goodwill) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 6,078
Acquisitions, including purchase accounting adjustments	136
Foreign currency impact	(33)
Ending Balance	6,181
Performance Coatings
Goodwill [Roll Forward]
Beginning Balance	4,881
Acquisitions, including purchase accounting adjustments	125
Foreign currency impact	(16)
Ending Balance	4,990
Industrial Coatings
Goodwill [Roll Forward]
Beginning Balance	1,197
Acquisitions, including purchase accounting adjustments	11
Foreign currency impact	(17)
Ending Balance	$ 1,191