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DERIVATIVE FINANCIAL INSTRUMENTS Narrative (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Jul. 29, 2012 | Jul. 31, 2011
Derivative [Line Items] |  |
Derivative, Collateral, Right to Reclaim Cash | $ 72.5 |
Derivative, Collateral, Obligation to Return Cash | 70.9 |
Credit Exposure on Non-Exchange Traded Derivative Contracts, Excluding the Effects of Netting Arrangements | 39.7 |
Credit Exposure on Non-Exhange Traded Derivative Contracts, Including the Effects of Netting Arrangements | 33.7 |
Gain (Loss) Recognized in Income as a Result of Cash Flow Hedge De-Designation |  | 12.0
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax | 110.4 |
Tax On Deferred Gains (Losses) in Accumulated Other Comprehensive Income (Loss) | 70.2 |
Gains (Losses) Recognized on Closed Commodity Derivative Contracts As the Underlying Cash Transactions Affected Earnings | 3.4 | 5.9
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 | (6.3) | 5.7
Scenario, Forecast [Member] | Commodity Contract [Member] |  |
Derivative [Line Items] |  |
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months | 82.0 |
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months, Net of Tax | $ 50.1 |

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- Definition Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 26 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669646-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e681-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80784-113994 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e637-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580 + Details
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- Definition The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 45 -Subparagraph b(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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