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DERIVATIVE FINANCIAL INSTRUMENTS Notional Amounts (Details) (USD $) | 9 Months Ended
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Jan. 29, 2012 bu
Cash Flow Hedging [Member] | Corn, in Bushels [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Other Units | 26,705,000 |
Maximum Notional Volumes, Other Units | 53,210,000 |
Cash Flow Hedging [Member] | Soybean Meal, in Tons [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Mass | 223,700 |
Maximum Notional Volumes, Mass | 877,722 |
Cash Flow Hedging [Member] | Lean Hogs, in Pounds [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Mass | 469,720,000 |
Maximum Notional Volumes, Mass | 960,360,000 |
Cash Flow Hedging [Member] | Interest Rate Swap [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Monetary | 0 |
Maximum Notional Volumes, Monetary | 200,000,000 |
Cash Flow Hedging [Member] | Foreign Exchange Contract [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Monetary | 22,959,793 | [1]
Maximum Notional Volumes, Monetary | 57,558,223 | [1]
Fair Value Hedging [Member] | Corn, in Bushels [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Other Units | 2,245,000 |
Maximum Notional Volumes, Other Units | 6,505,000 |
Fair Value Hedging [Member] | Lean Hogs, in Pounds [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Mass | 0 |
Maximum Notional Volumes, Mass | 221,680,000 |
Not Designated as Hedging Instrument [Member] | Corn, in Bushels [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Other Units | 8,485,000 |
Maximum Notional Volumes, Other Units | 22,810,000 |
Not Designated as Hedging Instrument [Member] | Soybean Meal, in Tons [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Mass | 0 |
Maximum Notional Volumes, Mass | 240,500 |
Not Designated as Hedging Instrument [Member] | Lean Hogs, in Pounds [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Mass | 400,000 |
Maximum Notional Volumes, Mass | 334,320,000 |
Not Designated as Hedging Instrument [Member] | Soybeans, in Bushels [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Other Units | 210,000 |
Maximum Notional Volumes, Other Units | 775,000 |
Not Designated as Hedging Instrument [Member] | Wheat, in Bushels [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Other Units | 0 |
Maximum Notional Volumes, Other Units | 1,820,000 |
Not Designated as Hedging Instrument [Member] | Live Cattle, in Pounds [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Mass | 0 |
Maximum Notional Volumes, Mass | 120,000 |
Not Designated as Hedging Instrument [Member] | Natural Gas, in Million BTU [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Other Units | 1,750,000 |
Maximum Notional Volumes, Other Units | 9,630,000 |
Not Designated as Hedging Instrument [Member] | Heating Oil, in Gallons [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Other Units | 0 |
Maximum Notional Volumes, Other Units | 1,008,000 |
Not Designated as Hedging Instrument [Member] | Crude Oil, in Barrels [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Other Units | 0 |
Maximum Notional Volumes, Other Units | 53,000 |
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] |  |
Derivative [Line Items] |  |
Minimum Notional Volumes, Monetary | 33,124,028 | [1]
Maximum Notional Volumes, Monetary | 129,867,546 | [1]
[1] | Amounts represent the U.S. dollar equivalent of various foreign currency contracts.

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