CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Comprehensive income:
Net income (loss)	$ 120.2	$ 108.6	$ 150.6	$ 164.4
Other comprehensive income (loss), before tax:
Cumulative translation adjustment	(77.9)	(63.4)	(145.3)	(57.7)
Derivative financial instruments	5.5	17.7	(5.2)	7.7
Accrued benefit cost	1.7	1.8	6.0	4.1
Unrealized gain on investment		(4.4)
Total other comprehensive income (loss), before tax	(70.7)	(48.3)	(144.5)	(45.9)
Income tax (provision) benefit related to other comprehensive income (loss)	(1.1)	(5.2)	(8.4)	(4.4)
Comprehensive income (loss)	$ 48.4	$ 55.1	$ (2.3)	$ 114.1