Business Restructuring (Schedule of Restructuring Activity) (Details) $ in Millions	3 Months Ended	6 Months Ended		12 Months Ended
	Dec. 31, 2016 USD ($) employee	Jun. 30, 2017 USD ($) employee position	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) employee
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 136			$ 130
Asset Impairment Charges	59			0
Business restructuring	$ 195			$ 130
Employees Impacted | employee	1,958	1,324		1,918
Restructuring Reserves, Deductions	$ (59)	$ 0
Number Of Employees Included In Plan Who Ceased Employment In Period | employee	(40)	(594)
Restructuring Reserve, Translation Adjustment		$ 0
Restructuring Reserve		0
Payments for Restructuring		20	$ 29
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserves, Deductions	$ (6)	(17)
Restructuring Reserve, Translation Adjustment		12
Restructuring Reserve		125
Restructuring Reserve, Total [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserves, Deductions	(65)	(17)
Restructuring Reserve, Translation Adjustment		12
Restructuring Reserve		125
Performance Coatings Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	77
Asset Impairment Charges	45
Business restructuring	$ 122
Employees Impacted | employee	1,069
Industrial Coatings Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 52
Asset Impairment Charges	14
Business restructuring	$ 66
Employees Impacted | employee	804
Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 7
Asset Impairment Charges	0
Business restructuring	$ 7
Employees Impacted | employee	85
2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring		$ 15
Restructuring and Related Cost, Expected Number of Positions Eliminated | position		1,700