Financial Instruments and Risk Management (Details 3) (USD $) In Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2011	Sep. 26, 2010	Oct. 02, 2011	Sep. 26, 2010
Impact on Earnings from Derivative Instruments
Cash Flow Hedge - Reclassified Amount From Other Comprehensive Earnings (Loss) - Gain (Loss)	$ 19.3	$ (0.3)	$ 54.3	$ (16.1)
Gain (Loss) on Derivatives Not Designated As Hedge Instruments	1.6	(5.1)	1.8	(1.1)
Commodity contracts
Impact on Earnings from Derivative Instruments
Cash Flow Hedge - Reclassified Amount From Other Comprehensive Earnings (Loss) - Gain (Loss)	18.7	2.0	52.7	(10.5)
Gain (Loss) on Derivatives Not Designated As Hedge Instruments	(0.2)	(1.7)	0.4	(0.2)
Interest rate contracts
Impact on Earnings from Derivative Instruments
Cash Flow Hedge - Reclassified Amount From Other Comprehensive Earnings (Loss) - Gain (Loss)		(1.2)	1.3	(3.8)
Inflation option contracts
Impact on Earnings from Derivative Instruments
Gain (Loss) on Derivatives Not Designated As Hedge Instruments	(0.3)	(0.3)	(0.3)	(0.7)
Foreign currency contracts
Impact on Earnings from Derivative Instruments
Cash Flow Hedge - Reclassified Amount From Other Comprehensive Earnings (Loss) - Gain (Loss)	0.6	(1.1)	0.3	(1.8)
Gain (Loss) on Derivatives Not Designated As Hedge Instruments	10.6	(3.1)	6.0	(0.2)
Equity contracts
Impact on Earnings from Derivative Instruments
Gain (Loss) on Derivatives Not Designated As Hedge Instruments	$ (8.5)		$ 4.3