Business Restructuring (Schedule of Restructuring Activity) (Details) $ in Millions	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) employee	Sep. 30, 2015 USD ($) employee	Dec. 31, 2015 USD ($) employee
Restructuring Cost and Reserve [Line Items]
Cash Charges Related to Restructuring		85.00%			85.00%
Severance Costs					$ 121	$ 87
Asset Impairment Charges					19	0
Business restructuring	$ 0	$ 0	$ 140	$ 0	$ 140	$ 87
Employees Impacted | employee				359	1,853	806
Restructuring Reserves, Deductions				$ 0		$ (19)
Number Of Employees Included In Plan Who Ceased Employment In Period | employee				(447)		(1,047)
Restructuring Reserve, Translation Adjustment				$ 0		$ 0
Restructuring Reserve	0			0
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserves, Deductions				(45)		(32)
Restructuring Reserve, Translation Adjustment				0		(2)
Restructuring Reserve	42			42
Restructuring Reserve, Total [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserves, Deductions				(45)		(51)
Restructuring Reserve, Translation Adjustment				0		$ (2)
Restructuring Reserve	$ 42			$ 42
Performance Coatings Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs					$ 71
Asset Impairment Charges					6
Business restructuring					$ 77
Employees Impacted | employee					1,259
Industrial Coatings Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs					$ 42
Asset Impairment Charges					13
Business restructuring					$ 55
Employees Impacted | employee					534
Glass Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs					$ 4
Asset Impairment Charges					0
Business restructuring					$ 4
Employees Impacted | employee					33
Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs					$ 4
Asset Impairment Charges					0
Business restructuring					$ 4
Employees Impacted | employee					27