Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Beginning Balance	$ (341.3)	$ (318.1)
Other comprehensive (loss) income before reclassifications (1)	49.1	29.0
Amounts reclassified from AOCI	(4.2)	0.8
Net current-period other comprehensive (loss) income	44.9	29.8
Balance at March 31	(296.4)	(288.3)
Translation adjustment
Beginning Balance	(251.2)	(215.6)
Other comprehensive (loss) income before reclassifications (1)	49.3	32.6	[1]
Amounts reclassified from AOCI	0.0	0.0
Net current-period other comprehensive (loss) income	49.3	32.6
Balance at March 31	(201.9)	(183.0)
Foreign Currency Hedges
Beginning Balance	(5.7)	5.0
Other comprehensive (loss) income before reclassifications (1)	(2.2)	(3.6)
Amounts reclassified from AOCI	0.0	0.0
Net current-period other comprehensive (loss) income	(2.2)	(3.6)
Balance at March 31	(7.9)	1.4
Interest Rate Hedges
Beginning Balance	4.6	(0.1)
Other comprehensive (loss) income before reclassifications (1)	2.0	0.0
Amounts reclassified from AOCI	(0.3)	(0.1)
Net current-period other comprehensive (loss) income	1.7	(0.1)
Balance at March 31	6.3	(0.2)
Pension and Other Post-retirement Benefits
Beginning Balance	(89.3)	(107.8)
Other comprehensive (loss) income before reclassifications (1)	0.0	0.0
Amounts reclassified from AOCI	(3.9)	0.9
Net current-period other comprehensive (loss) income	(3.9)	0.9
Balance at March 31	(93.2)	(106.9)
Other
Beginning Balance	0.3	0.4
Other comprehensive (loss) income before reclassifications (1)	0.0	0.0
Amounts reclassified from AOCI	0.0	0.0
Net current-period other comprehensive (loss) income	0.0	0.0
Balance at March 31	$ 0.3	0.4
Translation adjustment
Other comprehensive (loss) income, translation adjustment, net of tax, attributable to noncontrolling interests		$ 0.2

[1] Other comprehensive income (loss) before reclassifications within the translation component excludes $0.2 of translation attributable to noncontrolling interests.