Long-term Debt and Other Financing Arrangements (Details 1) (USD $)	May 31, 2011	May 31, 2010
Debt Instrument Line Items
Long Term Debt	$ 1,539,000,000	$ 1,789,000,000
Capital lease obligations	146,000,000	141,000,000
Total Debt And Capital Lease Obligations	1,685,000,000	1,930,000,000
Less current portion	18,000,000	262,000,000
LONG-TERM DEBT, LESS CURRENT PORTION	1,667,000,000	1,668,000,000
Senior Unsecured Debt Due In 2011 [Member]
Debt Instrument Line Items
Senior unsecured debt		250,000,000
Debt Instrument Interest Rate Stated Percentage	7.25%
Senior Unsecured Debt Due In 2013 [Member]
Debt Instrument Line Items
Senior unsecured debt	300,000,000	300,000,000
Debt Instrument Interest Rate Stated Percentage	9.65%
Senior Unsecured Debt Due 2014 [Member]
Debt Instrument Line Items
Senior unsecured debt	250,000,000	250,000,000
Debt Instrument Interest Rate Stated Percentage	7.38%
Senior Unsecured Debt Due 2019 [Member]
Debt Instrument Line Items
Senior unsecured debt	750,000,000	750,000,000
Debt Instrument Interest Rate Stated Percentage	8.00%
Senior Unsecured Debt Due 2098 [Member]
Debt Instrument Line Items
Senior unsecured debt	239,000,000	239,000,000
Debt Instrument Interest Rate Stated Percentage	$ 7.60%

Sum of the carrying values as of the balance sheet date of all long-term debt plus capital lease obligations due to be paid.

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 7

+ Details

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- Definition

Interest rate stated in the contractual debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

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- Definition

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 7

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20, 22
-Article 5

+ Details

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- Definition

Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year or the normal operating cycle, if longer plus capital lease obligations due to be paid more than one year after the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section H

+ Details

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- Definition

Obligation related to long-term debt (excluding convertible debt) and capital leases, the portion which is due in one year or less in the future.

+ Details

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- Definition

Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

+ Details

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