Financial Instruments - Balance Sheet (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ 5.5
Accumulated other comprehensive income (loss), cumulative change in foreign currency denominated debt, before tax	16.9	$ 0.1
Foreign currency contracts [Member]
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	5.6
Foreign currency contracts [Member] | Prepayments and other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	7.2	2.7
Foreign currency contracts [Member] | Accounts payable and accrued expenses
Derivatives, Fair Value [Line Items]
Derivative liabilities	1.1	8.7
Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from cash flow hedges, before tax	(0.1)	(2.1)
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	(0.1)
Commodity Contract [Member] | Prepayments and other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	0.1	0.0
Commodity Contract [Member] | Accounts payable and accrued expenses
Derivatives, Fair Value [Line Items]
Derivative liabilities	0.0	10.4
Interest Rate Swap [Member] | Other non-current assets
Derivatives, Fair Value [Line Items]
Derivative assets	0.0	0.0
Interest Rate Swap [Member] | Accounts payable and accrued expenses
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 0.0	$ 2.7