DERIVATIVES FINANCIAL INSTRUMENTS Narrative (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 28, 2013	Apr. 29, 2012	May 01, 2011
Derivative [Line Items]
Derivative, Collateral, Right to Reclaim Cash	$ 75.0
Derivative, Collateral, Obligation to Return Cash	(3.6)
Credit Exposure on Non-Exchange Traded Derivative Contracts, Excluding the Effects of Netting Arrangements	11.4
Gain on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring		12.0
Accumulated other comprehensive income (loss), Hedge accounting	(17.8)	51.2
Tax On Deferred Gains (Losses) in Accumulated Other Comprehensive Income (Loss)	11.3
Gains (Losses) on Derivative Contracts Representing the Differences Between Spot and Futures Prices Which are Excluded from the Assessment of Effectiveness and Recorded Directly Into Earnings	(7.5)	5.1	0.2
Gains (Losses) Recognized on Closed Commodity Derivative Contracts As the Underlying Cash Transactions Affected Earnings	(2.5)	6.0	(24.9)
Scenario, Forecast [Member] | Commodity Contract [Member]
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	39.0
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months, Net of Tax	$ 23.8