Condensed Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net (loss) income	$ (37.9)	$ 13.1
Other comprehensive income, net of tax:
Foreign currency translation adjustments, net	15.5	(1.4)
Unrealized gains (losses) on derivative contracts, net	3.0	(0.3)
Amortization of prior service costs and actuarial losses, net	3.8	5.1
Total other comprehensive income, net of tax	22.3	3.4
Comprehensive (loss) income	$ (15.6)	$ 16.5