Segments - Reconciliation of Revenue from Segments to Consolidated (Details) $ in Millions	3 Months Ended
	Mar. 31, 2017 USD ($) Segment	Mar. 31, 2016 USD ($)
Segment Reporting, Revenue Reconciling Item [Line Items]
Number of operating segments | Segment	2
Net sales	$ 1,007.8	$ 955.6
Performance Coatings [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	586.4	543.0
Performance Coatings [Member] | Refinish [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	388.6	378.7
Performance Coatings [Member] | Industrial [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	197.8	164.3
Transportation Coatings [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	421.4	412.6
Transportation Coatings [Member] | Light Vehicle [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	340.0	329.4
Transportation Coatings [Member] | Commercial Vehicle [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	$ 81.4	$ 83.2