Consolidated Statements Of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 32.7	$ 22.8	$ 93.4	$ 218.5
Other comprehensive income
Translation adjustments	(16.0)	7.7	(15.6)	(3.0)
Total comprehensive income	16.7	30.5	77.8	215.5
Comprehensive loss attributable to noncontrolling interests	0	0.2	0.4	0.7
Comprehensive income attributable to PolyOne common shareholders	$ 16.7	$ 30.7	$ 78.2	$ 216.2