Derivative Financial Instruments (Details) (USD $) In Millions, unless otherwise specified	Nov. 27, 2011	May 29, 2011
Derivative assets and liabilities and amounts representing a right to reclaim cash collateral or obligation to return cash collateral were reflected in balance sheets:
Prepaid expenses and other current assets	$ 99.5	$ 71.5
Other accrued liabilities	186.9	92.2
Schedule of Derivative Instruments in Statement of Financial Position, gross, fair value
Total derivative assets not designated as hedging instruments	105.7	87.1
Total derivative assets	105.7	87.1
Total derivative liabilities not designated as hedging instruments	85.7	103.8
Total derivative liabilities	225.1	115.6
Other accrued liabilities [Member] | Designated as Hedging Instrument [Member]
Schedule of Derivative Instruments in Statement of Financial Position, gross, fair value
Total derivative liabilities	139.4	11.8
Prepaid expenses and other current assets [Member] | Designated as Hedging Instrument [Member]
Schedule of Derivative Instruments in Statement of Financial Position, gross, fair value
Total derivative assets	0	0
Interest Rate Contract [Member] | Other accrued liabilities [Member] | Designated as Hedging Instrument [Member]
Schedule of Derivative Instruments in Statement of Financial Position, gross, fair value
Total derivative liabilities	139.4	11.8
Interest Rate Contract [Member] | Prepaid expenses and other current assets [Member] | Designated as Hedging Instrument [Member]
Schedule of Derivative Instruments in Statement of Financial Position, gross, fair value
Total derivative assets	0	0
Commodity Contracts [Member] | Other accrued liabilities [Member]
Schedule of Derivative Instruments in Statement of Financial Position, gross, fair value
Total derivative liabilities not designated as hedging instruments	68.6	84.4
Commodity Contracts [Member] | Prepaid expenses and other current assets [Member]
Schedule of Derivative Instruments in Statement of Financial Position, gross, fair value
Total derivative assets not designated as hedging instruments	95.8	85.4
Foreign Exchange Contracts [Member] | Other accrued liabilities [Member]
Schedule of Derivative Instruments in Statement of Financial Position, gross, fair value
Total derivative liabilities not designated as hedging instruments	16.4	19.2
Foreign Exchange Contracts [Member] | Prepaid expenses and other current assets [Member]
Schedule of Derivative Instruments in Statement of Financial Position, gross, fair value
Total derivative assets not designated as hedging instruments	7.5	1.0
Other [Member] | Other accrued liabilities [Member]
Schedule of Derivative Instruments in Statement of Financial Position, gross, fair value
Total derivative liabilities not designated as hedging instruments	0.7	0.2
Other [Member] | Prepaid expenses and other current assets [Member]
Schedule of Derivative Instruments in Statement of Financial Position, gross, fair value
Total derivative assets not designated as hedging instruments	$ 2.4	$ 0.7