DERIVATIVE FINANCIAL INSTRUMENTS (Derivatives Not Designated as Hedging Instruments) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	May 25, 2014	May 26, 2013	May 27, 2012
Derivatives, Fair Value [Line Items]
Net gains (losses) from derivative instruments	$ 56.0	$ 151.2	$ 66.1
Commodity contracts | Sales
Derivatives, Fair Value [Line Items]
Net gains (losses) from derivative instruments	(6.3)	(11.5)	(6.4)
Commodity contracts | Cost of goods sold
Derivatives, Fair Value [Line Items]
Net gains (losses) from derivative instruments	110.3	142.2	58.5
Commodity contracts | Selling, general and administrative expenses
Derivatives, Fair Value [Line Items]
Net gains (losses) from derivative instruments		0.1	(0.1)
Foreign exchange contracts | Cost of goods sold
Derivatives, Fair Value [Line Items]
Net gains (losses) from derivative instruments	1.9	20.3	5.4
Foreign exchange contracts | Selling, general and administrative expenses
Derivatives, Fair Value [Line Items]
Net gains (losses) from derivative instruments	5.0	0.1	8.7
Interest Rate Swap [Member] | Selling, general and administrative expenses
Derivatives, Fair Value [Line Items]
Net gains (losses) from derivative instruments	$ (54.9)