Revenue Recognition - Schedule Of Revenue By Revenue Source (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 3,685	$ 3,826	$ 10,077	$ 11,474
United States and Canada
Disaggregation of Revenue [Line Items]
Net sales	1,484	1,665	4,269	4,964
Europe, Middle East and Africa ("EMEA")
Disaggregation of Revenue [Line Items]
Net sales	1,171	1,127	3,158	3,496
Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales	672	644	1,697	1,870
Latin America
Disaggregation of Revenue [Line Items]
Net sales	358	390	953	1,144
Performance Coatings Segment [Member]
Disaggregation of Revenue [Line Items]
Net sales	2,251	2,313	6,328	6,851
Performance Coatings Segment [Member] | United States and Canada
Disaggregation of Revenue [Line Items]
Net sales	958	1,060	2,825	3,123
Performance Coatings Segment [Member] | Europe, Middle East and Africa ("EMEA")
Disaggregation of Revenue [Line Items]
Net sales	789	732	2,140	2,213
Performance Coatings Segment [Member] | Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales	274	278	728	804
Performance Coatings Segment [Member] | Latin America
Disaggregation of Revenue [Line Items]
Net sales	230	243	635	711
Industrial Coatings Segment [Member]
Disaggregation of Revenue [Line Items]
Net sales	1,434	1,513	3,749	4,623
Industrial Coatings Segment [Member] | United States and Canada
Disaggregation of Revenue [Line Items]
Net sales	526	605	1,444	1,841
Industrial Coatings Segment [Member] | Europe, Middle East and Africa ("EMEA")
Disaggregation of Revenue [Line Items]
Net sales	382	395	1,018	1,283
Industrial Coatings Segment [Member] | Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales	398	366	969	1,066
Industrial Coatings Segment [Member] | Latin America
Disaggregation of Revenue [Line Items]
Net sales	$ 128	$ 147	$ 318	$ 433
Revenue from Contract with Customer | Service
Disaggregation of Revenue [Line Items]
Service revenue, percentage of total revenue			5.00%