Financial Instruments and Risk Management (Details 3) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Impact on Earnings from Derivative Instruments
Cash Flow Hedge - Reclassified Amount from Other Comprehensive Earnings (Loss)	$ (16.7)	$ (33.4)	$ (28.5)
Gain (Loss) on Derivatives not Designated as Hedge Instruments	(69.1)	(23.2)	5.0
Amounts reclassified into earnings:
Commodity contracts	18.1	33.6	26.9
Interest rate contracts	0.1		1.0
Currency exchange contracts	(1.5)	(0.2)	0.6
Change in fair value of cash flow hedges:
Commodity contracts	(29.5)	4.1	(61.6)
Interest rate contracts	(0.2)	(0.3)	0.3
Currency exchange contracts	3.8	0.7	2.2
Foreign Currency and tax impacts	1.5	(2.9)	0.7
Changes in accumulated other comprehensive earnings (loss) for effective derivatives	(7.7)	35.0	(29.9)
Commodity contracts \| Net sales
Impact on Earnings from Derivative Instruments
Cash Flow Hedge - Reclassified Amount from Other Comprehensive Earnings (Loss)	5.4	(6.3)	8.4
Gain (Loss) on Derivatives not Designated as Hedge Instruments	1.2	3.1	0.2
Commodity contracts \| Cost of sales
Impact on Earnings from Derivative Instruments
Cash Flow Hedge - Reclassified Amount from Other Comprehensive Earnings (Loss)	(23.5)	(27.3)	(35.3)
Gain (Loss) on Derivatives not Designated as Hedge Instruments	(4.8)	1.3	(3.1)
Interest rate contracts \| Interest expense.
Impact on Earnings from Derivative Instruments
Cash Flow Hedge - Reclassified Amount from Other Comprehensive Earnings (Loss)	(0.1)		(1.0)
Interest rate contracts \| Debt refinancing and other costs
Impact on Earnings from Derivative Instruments
Gain (Loss) on Derivatives not Designated as Hedge Instruments	(15.9)
Foreign currency contracts \| Cost of sales
Impact on Earnings from Derivative Instruments
Cash Flow Hedge - Reclassified Amount from Other Comprehensive Earnings (Loss)	(0.2)	0.2	(0.6)
Gain (Loss) on Derivatives not Designated as Hedge Instruments	2.2	(1.0)	(0.1)
Foreign currency contracts \| Selling, general and administrative
Impact on Earnings from Derivative Instruments
Cash Flow Hedge - Reclassified Amount from Other Comprehensive Earnings (Loss)	1.7
Gain (Loss) on Derivatives not Designated as Hedge Instruments	(7.3)	(24.0)	7.4
Foreign currency contracts \| Business consolidation and other activities
Impact on Earnings from Derivative Instruments
Gain (Loss) on Derivatives not Designated as Hedge Instruments	(41.0)
Currency swap \| Business consolidation and other activities
Impact on Earnings from Derivative Instruments
Gain (Loss) on Derivatives not Designated as Hedge Instruments	(7.4)
Inflation option contracts \| Selling, general and administrative
Impact on Earnings from Derivative Instruments
Gain (Loss) on Derivatives not Designated as Hedge Instruments	$ 3.9	$ (2.6)	$ 0.6

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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