Reportable Business Segment Information (Assets And Investments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Segment assets	$ 19,433	$ 21,647	$ 20,744
Expenditures for property (including business acquisitions)	752	625	600
Investment in equity affiliates	141	141	134
Share of net earnings of equity affiliates	20	21	25
Operating Segments | Global Architectural Coatings
Segment Reporting Information [Line Items]
Segment assets	5,887	6,595	6,149
Expenditures for property (including business acquisitions)	160	93	86
Investment in equity affiliates	20	25	22
Share of net earnings of equity affiliates	3	1	3
Operating Segments | Performance Coatings Segment
Segment Reporting Information [Line Items]
Segment assets	5,601	5,586	5,612
Expenditures for property (including business acquisitions)	166	217	136
Investment in equity affiliates	26	23	20
Share of net earnings of equity affiliates	5	6	4
Operating Segments | Industrial Coatings Segment
Segment Reporting Information [Line Items]
Segment assets	5,230	5,643	5,802
Expenditures for property (including business acquisitions)	247	184	313
Investment in equity affiliates	20	18	15
Share of net earnings of equity affiliates	2	1	0
Segment Reporting, Reconciling Item, Corporate Nonsegment
Segment Reporting Information [Line Items]
Segment assets	2,715	3,823	3,181
Expenditures for property (including business acquisitions)	179	131	65
Investment in equity affiliates	75	75	77
Share of net earnings of equity affiliates	$ 10	$ 13	$ 18