DERIVATIVES FINANCIAL INSTRUMENTS Fair Value (Details) (USD $) In Millions, unless otherwise specified	Apr. 28, 2013	Apr. 29, 2012
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 29.1	$ 79.0
Derivative Liability, Fair Value, Gross Liability	89.5	30.7
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	6.8	60.1
Derivative Liability, Fair Value, Gross Liability	74.2	9.6
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	22.3	18.9
Derivative Liability, Fair Value, Gross Liability	15.3	21.1
Grain Contracts [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	2.5	35.3
Derivative Liability, Fair Value, Gross Liability	73.0	9.6
Grain Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	6.2	9.1
Derivative Liability, Fair Value, Gross Liability	13.7	1.0
Livestock Contracts [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	4.1	22.9
Derivative Liability, Fair Value, Gross Liability	1.1	0
Livestock Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	12.4	7.4
Derivative Liability, Fair Value, Gross Liability	0.7	7.2
Energy Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	3.1	0
Derivative Liability, Fair Value, Gross Liability	0.6	12.2
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0.2	1.9
Derivative Liability, Fair Value, Gross Liability	0.1	0
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0.6	2.4
Derivative Liability, Fair Value, Gross Liability	$ 0.3	$ 0.7