Accumulated Other Comprehensive Loss (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Beginning Balance $ (190.5) $ (54.3)
Other comprehensive (loss) income before reclassifications (1) (64.1) 7.5
Amounts reclassified from AOCI 1.0 0.4
Net current-period other comprehensive (loss) income (63.1) 7.9
Balance at March 31, 2015 (253.6) (46.4)
Translation    
Beginning Balance (74.9) (2.4)
Other comprehensive (loss) income before reclassifications (1) (68.6) 10.0 [1]
Amounts reclassified from AOCI 0 0
Net current-period other comprehensive (loss) income (68.6) 10.0
Balance at March 31, 2015 (143.5) 7.6
Other comprehensive (loss) income, translation adjustment, net of tax, attributable to noncontrolling interests 2.9 (0.5)
Foreign Currency Hedges    
Beginning Balance (1.4) (1.9)
Other comprehensive (loss) income before reclassifications (1) 4.3 (1.6)
Amounts reclassified from AOCI 0 0
Net current-period other comprehensive (loss) income 4.3 (1.6)
Balance at March 31, 2015 2.9 (3.5)
Interest Rate Hedges    
Beginning Balance (0.5) (1.0)
Other comprehensive (loss) income before reclassifications (1) 0.2 0.2
Amounts reclassified from AOCI (0.1) (0.1)
Net current-period other comprehensive (loss) income 0.1 0.1
Balance at March 31, 2015 (0.4) (0.9)
Pension and Other Post-retirement Benefits    
Beginning Balance (114.0) (52.0)
Other comprehensive (loss) income before reclassifications (1) 0 0
Amounts reclassified from AOCI 1.1 0.5
Net current-period other comprehensive (loss) income 1.1 0.5
Balance at March 31, 2015 (112.9) (51.5)
Unrealized Gain on Securities, Net    
Beginning Balance   2.7
Other comprehensive (loss) income before reclassifications (1)   (1.1)
Amounts reclassified from AOCI   0
Net current-period other comprehensive (loss) income   (1.1)
Balance at March 31, 2015   1.6
Other    
Beginning Balance 0.3 0.3
Other comprehensive (loss) income before reclassifications (1) 0 0
Amounts reclassified from AOCI 0 0
Net current-period other comprehensive (loss) income 0 0
Balance at March 31, 2015 $ 0.3 $ 0.3
[1] Other comprehensive income before reclassifications within the translation component excludes $(0.5) of translation attributable to noncontrolling interests.