Reportable Business Segment Information (Segment Net Sales and Income) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	$ 4,872	$ 4,691		$ 9,252	$ 8,999
Segment income (loss)	787	602		1,422	1,061
Corporate	(85)	(55)		(152)	(107)
Interest expense, net of interest income	(35)	(27)		(69)	(48)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	0	0		(190)	0
Insurance recovery of expenses incurred due to a natural disaster	0	0		9	0
Impairment and other related charges, net	0	60	$ (290)	0	(230)
Business restructuring-related costs, net	(14)	(8)		(14)	(22)
Acquisition-related costs	(7)	(6)		(7)	(10)
Income before income taxes	646	566		999	644
Performance Coatings
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	3,041	2,929		5,669	5,499
Segment income (loss)	537	446		932	765
Industrial Coatings
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	1,831	1,762		3,583	3,500
Segment income (loss)	$ 250	$ 156		$ 490	$ 296