Reportable Business Segment Information (Segment Net Sales and Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Operating Income (Loss) [Abstract]
Net sales	$ 3,684	$ 3,849
Cost of sales, exclusive of depreciation and amortization	2,142	2,205
Selling, general and administrative	838	850
Segment income (loss)	607	666
Income before income taxes	502	542
Assets
Assets	21,140	21,867	$ 19,433
Expenditures for property (including business acquisitions)
Expenditures for property (including business acquisitions)	209	262
Investment in equity affiliates
Equity method investments	146	144
Equity in undistributed earnings (losses) of subsidiaries	5	5
Geographic Information
Segment income (loss)	607	666
Property, plant and equipment (net of accumulated depreciation of $4,352 and $4,217)	3,539	3,444	$ 3,464
Gain (Loss) on Disposition of Business	7
United States And Canada
Operating Income (Loss) [Abstract]
Segment income (loss)	273	251
Geographic Information
Segment income (loss)	273	251
Property, plant and equipment (net of accumulated depreciation of $4,352 and $4,217)	1,538	1,401
EMEA
Operating Income (Loss) [Abstract]
Net sales	1,272	1,359
Segment income (loss)	144	157
Geographic Information
Segment income (loss)	144	157
Property, plant and equipment (net of accumulated depreciation of $4,352 and $4,217)	986	980
Asia Pacific
Operating Income (Loss) [Abstract]
Net sales	647	656
Segment income (loss)	87	103
Geographic Information
Segment income (loss)	87	103
Property, plant and equipment (net of accumulated depreciation of $4,352 and $4,217)	688	698
Latin America
Operating Income (Loss) [Abstract]
Net sales	481	554
Segment income (loss)	103	155
Geographic Information
Segment income (loss)	103	155
Property, plant and equipment (net of accumulated depreciation of $4,352 and $4,217)	327	365
Operating Segments
Operating Income (Loss) [Abstract]
Net sales	3,684	3,849
Segment income (loss)	607	666
Geographic Information
Segment income (loss)	607	666
Corporate / Non-Segment Items
Operating Income (Loss) [Abstract]
Depreciation and amortization	(14)	(18)
Corporate / non-segment unallocated, exclusive of depreciation and amortization	(81)	(76)
Interest expense, net of interest income	(13)	(13)
Business restructuring-related costs, net	(9)	(11)
Portfolio optimization	6	(6)
Insurance recovery	6	0
Assets
Assets	3,476	3,823
Expenditures for property (including business acquisitions)
Expenditures for property (including business acquisitions)	35	64
Investment in equity affiliates
Equity method investments	78	77
Equity in undistributed earnings (losses) of subsidiaries	3	3
Global Architectural Coatings
Operating Income (Loss) [Abstract]
Net sales	857	966
Global Architectural Coatings | EMEA
Operating Income (Loss) [Abstract]
Net sales	542	575
Global Architectural Coatings | Asia Pacific
Operating Income (Loss) [Abstract]
Net sales	46	56
Global Architectural Coatings | Latin America
Operating Income (Loss) [Abstract]
Net sales	269	335
Global Architectural Coatings | Operating Segments
Operating Income (Loss) [Abstract]
Net sales	857	966
Cost of sales, exclusive of depreciation and amortization	429	458
Selling, general and administrative	274	301
Depreciation and amortization	26	26
Other	10	15
Segment income (loss)	118	166
Assets
Assets	6,296	6,832
Expenditures for property (including business acquisitions)
Expenditures for property (including business acquisitions)	38	64
Investment in equity affiliates
Equity method investments	21	25
Equity in undistributed earnings (losses) of subsidiaries	1	0
Geographic Information
Segment income (loss)	118	166
Performance Coatings
Operating Income (Loss) [Abstract]
Net sales	1,265	1,184
Performance Coatings | EMEA
Operating Income (Loss) [Abstract]
Net sales	313	309
Performance Coatings | Asia Pacific
Operating Income (Loss) [Abstract]
Net sales	190	185
Performance Coatings | Latin America
Operating Income (Loss) [Abstract]
Net sales	25	32
Performance Coatings | Operating Segments
Operating Income (Loss) [Abstract]
Net sales	1,265	1,184
Cost of sales, exclusive of depreciation and amortization	675	628
Selling, general and administrative	256	245
Depreciation and amortization	33	34
Other	27	26
Segment income (loss)	274	251
Assets
Assets	5,911	5,637
Expenditures for property (including business acquisitions)
Expenditures for property (including business acquisitions)	51	60
Investment in equity affiliates
Equity method investments	26	23
Equity in undistributed earnings (losses) of subsidiaries	1	1
Geographic Information
Segment income (loss)	274	251
Industrial Coatings
Operating Income (Loss) [Abstract]
Net sales	1,562	1,699
Industrial Coatings | EMEA
Operating Income (Loss) [Abstract]
Net sales	417	475
Industrial Coatings | Asia Pacific
Operating Income (Loss) [Abstract]
Net sales	411	415
Industrial Coatings | Latin America
Operating Income (Loss) [Abstract]
Net sales	187	187
Industrial Coatings | Operating Segments
Operating Income (Loss) [Abstract]
Net sales	1,562	1,699
Cost of sales, exclusive of depreciation and amortization	1,038	1,119
Selling, general and administrative	200	212
Depreciation and amortization	48	52
Other	61	67
Segment income (loss)	215	249
Assets
Assets	5,457	5,575
Expenditures for property (including business acquisitions)
Expenditures for property (including business acquisitions)	85	74
Investment in equity affiliates
Equity method investments	21	19
Equity in undistributed earnings (losses) of subsidiaries	0	1
Geographic Information
Segment income (loss)	$ 215	$ 249