DERIVATIVE FINANCIAL INSTRUMENTS Fair Value (Details) (USD $) In Millions, unless otherwise specified	Jan. 29, 2012	May 01, 2011
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 43.0	$ 110.6
Derivative Liability, Fair Value, Gross Liability	32.3	51.3
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	26.7	69.3
Derivative Liability, Fair Value, Gross Liability	10.5	36.6
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	16.3	41.3
Derivative Liability, Fair Value, Gross Liability	21.8	14.7
Grain Contracts [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	9.8	46.2
Derivative Liability, Fair Value, Gross Liability	5.9	4.8
Grain Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	10.6	38.3
Derivative Liability, Fair Value, Gross Liability	7.9	4.7
Livestock Contracts [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	16.8	22.9
Derivative Liability, Fair Value, Gross Liability	3.4	29.5
Livestock Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	3.4	1.7
Derivative Liability, Fair Value, Gross Liability	1.1	8.0
Energy Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0.2	1.0
Derivative Liability, Fair Value, Gross Liability	9.8	0.1
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	0
Derivative Liability, Fair Value, Gross Liability	0	2.3
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0.1	0.2
Derivative Liability, Fair Value, Gross Liability	1.2	0
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	2.1	0.3
Derivative Liability, Fair Value, Gross Liability	$ 3.0	$ 1.9