Business Restructuring (Schedule of Restructuring Activity) (Details)	3 Months Ended			6 Months Ended		12 Months Ended	15 Months Ended
	Jun. 30, 2018 USD ($) employee	Mar. 31, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) employee position	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) employee	Jun. 30, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Business restructuring charge	$ 83,000,000		$ 0	$ 83,000,000	$ 0
Restructuring and related cost, accelerated depreciation	5,000,000		0	5,000,000	0
Impairment of a non-manufacturing asset	9,000,000		$ 0	$ 9,000,000	$ 0
Employees Impacted | employee				458		949
Number Of Employees Included In Plan Who Ceased Employment In Period | employee				(491)
Employee Severance
Restructuring Cost and Reserve [Line Items]
Valuation Allowances and Reserves, Deductions				$ 30,000,000
Restructuring Reserve, Translation Adjustment				(3,000,000)
Restructuring Reserve	69,000,000			$ 69,000,000		$ 102,000,000
2016 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserves, Deductions		$ 17,000,000
Restructuring and related cost, expected number of positions eliminated | position				2,000
2018 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Business restructuring charge	83,000,000
Restructuring and related cost, expected cost	25,000,000			$ 25,000,000
Restructuring and related cost, cost expensed on an as-incurred basis	10,000,000			10,000,000
Restructuring and related cost, cost expected to be capitalized	$ 15,000,000			15,000,000
Employees Impacted	1,678
Restructuring Reserves, Deductions		$ 17,000,000		$ (5,000,000)
Number Of Employees Included In Plan Who Ceased Employment In Period				(358)
Restructuring Reserve, Translation Adjustment	$ (2,000,000)
Restructuring Reserve	76,000,000			$ 76,000,000
2018 Restructuring Program | Employee Severance And Other Cost
Restructuring Cost and Reserve [Line Items]
Severance Costs	80,000,000
2018 Restructuring Program | Employee Severance
Restructuring Cost and Reserve [Line Items]
Severance Costs	80,000,000
Restructuring Reserves, Deductions				(2,000,000)
Restructuring Reserve, Translation Adjustment	(2,000,000)
Restructuring Reserve	76,000,000			76,000,000
2018 Restructuring Program | Asset Write Offs Or Other
Restructuring Cost and Reserve [Line Items]
Impairment of a non-manufacturing asset	3,000,000
Restructuring Reserves, Deductions				(3,000,000)
Restructuring Reserve, Translation Adjustment	0
Restructuring Reserve	0			$ 0
Performance Coatings | 2018 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Business restructuring charge	$ 52,000,000
Employees Impacted | employee	1,032
Performance Coatings | 2018 Restructuring Program | Employee Severance
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 49,000,000
Performance Coatings | 2018 Restructuring Program | Asset Write Offs Or Other
Restructuring Cost and Reserve [Line Items]
Impairment of a non-manufacturing asset	3,000,000
Industrial Coatings | 2018 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Business restructuring charge	$ 21,000,000
Employees Impacted | employee	298
Industrial Coatings | 2018 Restructuring Program | Employee Severance
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 21,000,000
Industrial Coatings | 2018 Restructuring Program | Asset Write Offs Or Other
Restructuring Cost and Reserve [Line Items]
Impairment of a non-manufacturing asset	0
Corporate Segment | 2018 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Business restructuring charge	$ 10,000,000
Employees Impacted | employee	348
Corporate Segment | 2018 Restructuring Program | Employee Severance
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 10,000,000
Corporate Segment | 2018 Restructuring Program | Asset Write Offs Or Other
Restructuring Cost and Reserve [Line Items]
Impairment of a non-manufacturing asset	$ 0
Scenario, Forecast
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, accelerated depreciation							$ 20,000,000