CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Comprehensive income (loss):
Net income (loss)	$ 146.5	$ 242.5	$ 203.9
Other comprehensive income, before tax:
Cumulative translation adjustment	(173.4)	(113.4)	(31.3)
Derivative financial instruments	2.7	18.4	4.6
Accrued benefit cost	0.3	(12.5)	38.3
Unrealized loss on investment		(0.4)
Total other comprehensive income (loss), before tax	(170.4)	(107.9)	11.6
Income tax (provision) benefit related to other comprehensive income (loss)	(11.0)	(14.2)	(16.8)
Comprehensive income (loss)	$ (34.9)	$ 120.4	$ 198.7