Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	$ (79.5)	$ (30.0)
Net current period other comprehensive income	10.4	(76.9)
Balance at end of period	(69.1)	(106.9)
Other comprehensive income (loss) before reclassifications [Abstract]
Pre-tax	15.5	(81.3)
Tax effect	(3.5)	4.1
Amounts reclassified from accumulated other comprehensive income (loss) to [Abstract]
Revenues	2,431.5	2,060.9
Cost of sales	1,765.1	1,453.0
Selling and administrative expenses	328.3	303.3
Amounts reclassified from accumulated other comprehensive income to [Member]
Amounts reclassified from accumulated other comprehensive income (loss) to [Abstract]
Revenues	(2.7)	0
Cost of sales	(0.3)	(1.2)
Selling and administrative expenses	0.1	1.7
Tax effect	1.3	(0.2)
Accumulated Foreign Currency Translation Gain (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	(48.4)
Net current period other comprehensive income	8.8
Balance at end of period	(39.6)
Other comprehensive income (loss) before reclassifications [Abstract]
Pre-tax	8.8
Tax effect	0
Accumulated Foreign Currency Translation Gain (Loss) [Member] | Amounts reclassified from accumulated other comprehensive income to [Member]
Amounts reclassified from accumulated other comprehensive income (loss) to [Abstract]
Revenues	0
Cost of sales	0
Selling and administrative expenses	0
Tax effect	0
Prior Service Credits and Net Actuarial Losses [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	(45.0)
Net current period other comprehensive income	0.1
Balance at end of period	(44.9)
Other comprehensive income (loss) before reclassifications [Abstract]
Pre-tax	0
Tax effect	0
Prior Service Credits and Net Actuarial Losses [Member] | Amounts reclassified from accumulated other comprehensive income to [Member]
Amounts reclassified from accumulated other comprehensive income (loss) to [Abstract]
Revenues	0
Cost of sales	0
Selling and administrative expenses	0.1
Tax effect	0
Accumulated Gain (Loss) on Cash Flow Hedge Derivatives [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	13.9
Net current period other comprehensive income	1.5
Balance at end of period	15.4
Other comprehensive income (loss) before reclassifications [Abstract]
Pre-tax	6.7
Tax effect	(3.5)
Accumulated Gain (Loss) on Cash Flow Hedge Derivatives [Member] | Amounts reclassified from accumulated other comprehensive income to [Member]
Amounts reclassified from accumulated other comprehensive income (loss) to [Abstract]
Revenues	(2.7)
Cost of sales	(0.3)
Selling and administrative expenses	0
Tax effect	$ 1.3