Fair Value Measurements and Risk (Details 3) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Fair values of derivative instruments
Asset Derivatives	$ 2.9	$ 3.3
Liability Derivatives	9.0	8.2
Designated as Hedging Instrument [Member] \| Other current assets
Fair values of derivative instruments
Asset Derivatives, Commodity contracts	0.0	0.0
Asset Derivatives, Currency contracts	0.6	0.8
Interest Rate Fair Value Hedge Asset at Fair Value	0.0	0.0
Designated as Hedging Instrument [Member] \| Other current liabilities
Fair values of derivative instruments
Liability Derivatives, Commodity contracts	1.5	2.6
Liability Derivatives, Currency contracts	0.0	0.0
Interest Rate Fair Value Hedge Liability at Fair Value	4.2	2.5
Designated as Hedging Instrument [Member] \| Other Assets
Fair values of derivative instruments
Asset Derivatives, Currency contracts	1.5	0.9
Interest Rate Fair Value Hedge Asset at Fair Value	0.0	0.0
Designated as Hedging Instrument [Member] \| Other Liabilities
Fair values of derivative instruments
Liability Derivatives, Currency contracts	0.1	0.0
Interest Rate Fair Value Hedge Liability at Fair Value	3.1	3.0
Not Designated as Hedging Instrument [Member] \| Other current assets
Fair values of derivative instruments
Asset Derivatives, Currency contracts	0.8	1.6
Not Designated as Hedging Instrument [Member] \| Other current liabilities
Fair values of derivative instruments
Liability Derivatives, Currency contracts	$ 0.1	$ 0.1

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

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Fair value as of the balance sheet date of all derivative assets designated as interest rate fair value hedging instruments.

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Fair value as of the balance sheet date of all price risk derivative assets designated as cash flow hedging instruments.

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