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Supplemental Cash Flow Information (Details) (USD $) In Millions | 12 Months Ended
--- | ---
May 31, 2011 | May 31, 2010 | May 31, 2009
Supplemental Cash Flow Information (Textuals) [Abstract] |  |  |
Income taxes paid | $ 255.6 | $ 258.0 | $ 261.8

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- Definition Supplemental cash flow information. + Details
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 29 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 27 -Subparagraph f + Details
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