FAIR VALUE MEASUREMENTS Schedule of Fair Value, Assets and Liabilities Measured on a Recurring Basis (Details) (USD $) In Millions, unless otherwise specified	Apr. 29, 2012	May 01, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ 30.7	$ 51.3
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commodity Contracts, Asset, Fair Value Disclosure	53.3	79.8
Foreign Currency Contract, Asset, Fair Value Disclosure	4.3	0.5
Open-Ended Mutual Funds, Asset Fair Value Disclosure	12.2	17.4
Cash Surrender Value, Fair Value Disclosure	51.3	49.4
Assets, Fair Value Disclosure	121.1	147.1
Commodity Contracts, Liability, Fair Value Disclosure	8.6	16.8
Interest Rate Contracts, Liability, Fair Value Disclosure	0	2.3
Foreign Currency Contracts, Liability, Fair Value Disclosure	0.7	1.9
Liabilities, Fair Value Disclosure	9.3	21.0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commodity Contracts, Asset, Fair Value Disclosure	52.0	45.2
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0
Open-Ended Mutual Funds, Asset Fair Value Disclosure	12.2	17.4
Cash Surrender Value, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure	64.2	62.6
Commodity Contracts, Liability, Fair Value Disclosure	0	16.8
Interest Rate Contracts, Liability, Fair Value Disclosure	0	0
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure	0	16.8
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commodity Contracts, Asset, Fair Value Disclosure	1.3	34.6
Foreign Currency Contract, Asset, Fair Value Disclosure	4.3	0.5
Open-Ended Mutual Funds, Asset Fair Value Disclosure	0	0
Cash Surrender Value, Fair Value Disclosure	51.3	49.4
Assets, Fair Value Disclosure	56.9	84.5
Commodity Contracts, Liability, Fair Value Disclosure	8.6	0
Derivative Liability, Fair Value, Gross Liability	0	2.3
Foreign Currency Contracts, Liability, Fair Value Disclosure	0.7	1.9
Liabilities, Fair Value Disclosure	9.3	4.2
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commodity Contracts, Asset, Fair Value Disclosure	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0
Open-Ended Mutual Funds, Asset Fair Value Disclosure	0	0
Cash Surrender Value, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure	0	0
Commodity Contracts, Liability, Fair Value Disclosure	0	0
Interest Rate Contracts, Liability, Fair Value Disclosure	0	0
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure	$ 0	$ 0

Commodity Contracts, Asset, Fair Value Disclosure

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- Definition

Commodity Contracts, Liability, Fair Value Disclosure

+ References

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- Definition

Interest Rate Contracts, Liability, Fair Value Disclosure

+ References

No definition available.

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- Definition

Open-Ended Mutual Funds, Asset Fair Value Disclosure

+ References

No definition available.

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- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This element represents the portion of a balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount that could be realized under a life insurance contract or contracts owned by the Company as of the date of the statement of financial position. Such Company-owned life insurance policies are commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Surrender Value

-URI http://asc.fasb.org/extlink&oid=6507153

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 88-5

-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 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Technical Bulletin (FTB)

-Number 85-4

-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.

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- Definition

Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 205G

-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 Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44C

-Subparagraph a

-Clause 1

-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 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (a),(c)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959

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- Definition

+ References

No definition available.

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- Definition

+ References

No definition available.

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- Definition

This element represents the aggregate of the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

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