Revenue Recognition - Schedule Of Revenue By Revenue Source (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 3,015	$ 4,024	$ 6,392	$ 7,648
Performance Coatings
Disaggregation of Revenue [Line Items]
Net sales	2,069	2,430	4,077	4,538
Industrial Coatings
Disaggregation of Revenue [Line Items]
Net sales	946	1,594	2,315	3,110
United States and Canada
Disaggregation of Revenue [Line Items]
Net sales	1,276	1,733	2,785	3,299
United States and Canada | Performance Coatings
Disaggregation of Revenue [Line Items]
Net sales	940	1,110	1,867	2,063
United States and Canada | Industrial Coatings
Disaggregation of Revenue [Line Items]
Net sales	336	623	918	1,236
Europe, Middle East and Africa ("EMEA")
Disaggregation of Revenue [Line Items]
Net sales	926	1,255	1,987	2,369
Europe, Middle East and Africa ("EMEA") | Performance Coatings
Disaggregation of Revenue [Line Items]
Net sales	686	793	1,351	1,481
Europe, Middle East and Africa ("EMEA") | Industrial Coatings
Disaggregation of Revenue [Line Items]
Net sales	240	462	636	888
Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales	566	643	1,025	1,226
Asia Pacific | Performance Coatings
Disaggregation of Revenue [Line Items]
Net sales	255	283	454	526
Asia Pacific | Industrial Coatings
Disaggregation of Revenue [Line Items]
Net sales	311	360	571	700
Latin America
Disaggregation of Revenue [Line Items]
Net sales	247	393	595	754
Latin America | Performance Coatings
Disaggregation of Revenue [Line Items]
Net sales	188	244	405	468
Latin America | Industrial Coatings
Disaggregation of Revenue [Line Items]
Net sales	$ 59	$ 149	$ 190	$ 286
Revenue from Contract with Customer | Service
Disaggregation of Revenue [Line Items]
Service revenue, percentage of total revenue			5.00%