Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Unamortized loss on cash flow hedge, income taxes	$ (20.3)	$ (1.7)
Unrealized gain on available-for-sale securities, income taxes	0.0	0.1
Foreign currency translation adjustment, income taxes	58.2	(175.8)
Defined benefit pension and postemployment plans adjustment, income taxes	$ 1.0	$ 1.5