Revenue Recognition Schedule Of Revenue (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 3,672	$ 3,826	$ 4,024	$ 3,624	$ 3,645	$ 3,817	$ 4,131	$ 3,781	$ 15,146	$ 15,374	$ 14,748
United States and Canada
Disaggregation of Revenue [Line Items]
Net sales									6,475	6,485	6,307
EMEA
Disaggregation of Revenue [Line Items]
Net sales									4,549	4,678	4,389
Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales									2,542	2,618	2,523
Latin America
Disaggregation of Revenue [Line Items]
Net sales									1,580	1,593	1,529
Performance Coatings
Disaggregation of Revenue [Line Items]
Net sales									9,034	9,087	8,730
Performance Coatings | United States and Canada
Disaggregation of Revenue [Line Items]
Net sales									4,057	4,062	4,031
Performance Coatings | EMEA
Disaggregation of Revenue [Line Items]
Net sales									2,869	2,936	2,761
Performance Coatings | Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales									1,095	1,071	970
Performance Coatings | Latin America
Disaggregation of Revenue [Line Items]
Net sales									1,013	1,018	968
Industrial Coatings
Disaggregation of Revenue [Line Items]
Net sales									6,112	6,287	6,018
Industrial Coatings | United States and Canada
Disaggregation of Revenue [Line Items]
Net sales									2,418	2,423	2,276
Industrial Coatings | EMEA
Disaggregation of Revenue [Line Items]
Net sales									1,680	1,742	1,628
Industrial Coatings | Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales									1,447	1,547	1,553
Industrial Coatings | Latin America
Disaggregation of Revenue [Line Items]
Net sales									$ 567	$ 575	$ 561
Revenue from Contract with Customer | Service [Member]
Disaggregation of Revenue [Line Items]
Service revenue, percentage of total revenue									5.00%