Goodwill and Identifiable Intangible Assets - Schedule of Goodwill (Details) $ in Millions	9 Months Ended
	Sep. 30, 2015 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 1,001.1
Goodwill from acquisitions	17.8
Foreign currency translation	(74.4)
Goodwill, ending balance	944.5
Performance Coatings [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	933.6
Goodwill from acquisitions	17.1
Foreign currency translation	(69.4)
Goodwill, ending balance	881.3
Transportation Coatings [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	67.5
Goodwill from acquisitions	0.7
Foreign currency translation	(5.0)
Goodwill, ending balance	$ 63.2