Revenue Recognition - Schedule Of Revenue By Revenue Source (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 3,826	$ 3,817	$ 11,474	$ 11,729
Performance Coatings
Disaggregation of Revenue [Line Items]
Net sales	2,313	2,289	6,851	6,947
Industrial Coatings
Disaggregation of Revenue [Line Items]
Net sales	1,513	1,528	4,623	4,782
United States and Canada
Disaggregation of Revenue [Line Items]
Net sales	1,665	1,634	4,964	5,011
United States and Canada | Performance Coatings
Disaggregation of Revenue [Line Items]
Net sales	1,060	1,028	3,123	3,175
United States and Canada | Industrial Coatings
Disaggregation of Revenue [Line Items]
Net sales	605	606	1,841	1,836
EMEA
Disaggregation of Revenue [Line Items]
Net sales	1,127	1,138	3,496	3,597
EMEA | Performance Coatings
Disaggregation of Revenue [Line Items]
Net sales	732	741	2,213	2,259
EMEA | Industrial Coatings
Disaggregation of Revenue [Line Items]
Net sales	395	397	1,283	1,338
Asia-Pacific
Disaggregation of Revenue [Line Items]
Net sales	644	652	1,870	1,962
Asia-Pacific | Performance Coatings
Disaggregation of Revenue [Line Items]
Net sales	278	272	804	791
Asia-Pacific | Industrial Coatings
Disaggregation of Revenue [Line Items]
Net sales	366	380	1,066	1,171
Latin America
Disaggregation of Revenue [Line Items]
Net sales	390	393	1,144	1,159
Latin America | Performance Coatings
Disaggregation of Revenue [Line Items]
Net sales	243	248	711	722
Latin America | Industrial Coatings
Disaggregation of Revenue [Line Items]
Net sales	$ 147	$ 145	$ 433	$ 437
Revenue from Contract with Customer | Service
Disaggregation of Revenue [Line Items]
Service revenue, percentage of total revenue			5.00%