Discontinued Operations and Disposal Groups (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	$ 4,082	$ 4,032	$ 11,961	$ 12,116
Cost of sales, exclusive of depreciation and amortization	2,426	2,381	7,000	7,036
Selling, general and administrative	824	848	2,534	2,556
Depreciation	106	89	297	273
Amortization of Intangible Assets	32	30	97	100
Research and development, net	106	102	314	317
Income before income taxes	556	578	1,656	1,771
Income tax expense	118	128	380	405
Income from discontinued operations, net of tax	9	24	7	54
Discontinued Operations, Disposed of by Sale | U.S. And Canada Architectural Coatings Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	0	543	0	1,564
Cost of sales, exclusive of depreciation and amortization	0	282	0	806
Selling, general and administrative	0	214	0	647
Depreciation	0	8	0	25
Amortization of Intangible Assets	0	2	0	6
Research and development, net	0	3	0	8
Other Nonoperating Income (Expense)	2	1	4	1
Income before income taxes	(2)	33	(4)	71
Income tax expense	(11)	9	(11)	17
Income from discontinued operations, net of tax	$ 9	$ 24	$ 7	$ 54