Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
Beginning Balance		$ (196.3)	$ (341.3)
Other comprehensive (loss) income before reclassifications (1)		(81.4)	142.1
Amounts reclassified from AOCI		3.0	2.9
Net current period other comprehensive income (loss)		(107.4)	145.0
Ending Balance		(303.7)	(196.3)
Translation
Beginning Balance		(116.8)	(251.2)
Other comprehensive (loss) income before reclassifications (1)	[1]	(65.6)	134.4
Amounts reclassified from AOCI		0.0	0.0
Net current period other comprehensive income (loss)		(74.7)	134.4
Ending Balance		(191.5)	(116.8)
Other comprehensive (loss) income before reclassifications within the translation component, amount excluded		3.9	(5.9)
Foreign Currency Hedges
Beginning Balance		(5.1)	(5.7)
Other comprehensive (loss) income before reclassifications (1)		4.2	0.6
Amounts reclassified from AOCI		0.0	0.0
Net current period other comprehensive income (loss)		3.2	0.6
Ending Balance		(1.9)	(5.1)
Interest Rate Hedges
Beginning Balance		8.1	4.6
Other comprehensive (loss) income before reclassifications (1)		(1.4)	3.9
Amounts reclassified from AOCI		2.6	(0.4)
Net current period other comprehensive income (loss)		2.5	3.5
Ending Balance		10.6	8.1
Pension and Other Post-Retirement Benefits
Beginning Balance		(82.6)	(89.3)
Other comprehensive (loss) income before reclassifications (1)		(18.6)	3.4
Amounts reclassified from AOCI		0.4	3.3
Net current period other comprehensive income (loss)		(38.4)	6.7
Ending Balance		(121.0)	(82.6)
Other
Beginning Balance		0.1	0.3
Other comprehensive (loss) income before reclassifications (1)		0.0	(0.2)
Amounts reclassified from AOCI		0.0	0.0
Net current period other comprehensive income (loss)		0.0	(0.2)
Ending Balance		$ 0.1	$ 0.1
Accounting Standards Update 2018-02 [Member]
New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects		-29
Accounting Standards Update 2018-02 [Member] | Translation
New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects		-9.1
Accounting Standards Update 2018-02 [Member] | Foreign Currency Hedges
New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects		-1
Accounting Standards Update 2018-02 [Member] | Interest Rate Hedges
New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects		1.3
Accounting Standards Update 2018-02 [Member] | Pension and Other Post-Retirement Benefits
New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects		-20.2
Accounting Standards Update 2018-02 [Member] | Other
New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects		0

[1] Other comprehensive income (loss) before reclassifications within the translation component excludes (gains)/losses of $3.9 and $(5.9) and translation attributable to noncontrolling interests for December 31, 2018 and 2017, respectively.