Segments - Reconciliation of Revenue from Segments to Consolidated (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) market Segment	Sep. 30, 2014 USD ($)
Segment Reporting, Revenue Reconciling Item [Line Items]
Number of operating segments | Segment			2
Number of end-markets served | market			4
Net sales	$ 1,000.3	$ 1,108.9	$ 3,083.6	$ 3,282.9
Performance Coatings [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	600.6	663.5	1,796.6	1,944.6
Transportation Coatings [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	399.7	445.4	1,287.0	1,338.3
Operating Segments [Member] | Performance Coatings [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	600.6	663.5	1,796.6	1,944.6
Operating Segments [Member] | Performance Coatings [Member] | Refinish [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	426.9	478.1	1,280.2	1,384.4
Operating Segments [Member] | Performance Coatings [Member] | Industrial [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	173.7	185.4	516.4	560.2
Operating Segments [Member] | Transportation Coatings [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	399.7	445.4	1,287.0	1,338.3
Operating Segments [Member] | Transportation Coatings [Member] | Light Vehicle [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	303.7	342.5	984.1	1,045.5
Operating Segments [Member] | Transportation Coatings [Member] | Commercial Vehicle [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	$ 96.0	$ 102.9	$ 302.9	$ 292.8