Derivative Financial Instruments (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Feb. 26, 2012	Feb. 27, 2011	Feb. 26, 2012	Feb. 27, 2011
Location and amount of gains and losses from derivatives reported in condensed consolidated statements of earnings:
Total gain from derivative instruments not designated as hedging instruments	$ 28.4	$ 6.8	$ 106.9	$ 1.8
Commodity Contracts [Member] | Cost of goods sold [Member]
Location and amount of gains and losses from derivatives reported in condensed consolidated statements of earnings:
Total gain from derivative instruments not designated as hedging instruments	29.5	17.8	102.6	27.5
Commodity Contracts [Member] | Selling, general and administrative expenses [Member]
Location and amount of gains and losses from derivatives reported in condensed consolidated statements of earnings:
Total gain from derivative instruments not designated as hedging instruments		2.5	(0.1)	2.5
Foreign Exchange Contracts [Member] | Cost of goods sold [Member]
Location and amount of gains and losses from derivatives reported in condensed consolidated statements of earnings:
Total gain from derivative instruments not designated as hedging instruments	4.2	(7.1)	3.2	(19.4)
Foreign Exchange Contracts [Member] | Selling, general and administrative expenses [Member]
Location and amount of gains and losses from derivatives reported in condensed consolidated statements of earnings:
Total gain from derivative instruments not designated as hedging instruments	$ (5.3)	$ (6.4)	$ 1.2	$ (8.8)