NOTES PAYABLE AND OTHER BORROWINGS Narrative (Details)	12 Months Ended
May 31, 2013
Long Term Notes Payable (Narrative) [Abstract]
Debt-related covenants	We were in compliance with all debt-related covenants as of May 31, 2013. We were in compliance with the 2013 Credit Agreement's covenants as of May 31, 2013.
Revolving Credit Agreement	In April 2013, we entered into a $3.0 billion Revolving Credit Agreement with Wells Fargo Bank, N.A., Bank of America, N.A., BNP Paribas, JPMorgan Chase Bank, N.A. and certain other lenders (the 2013 Credit Agreement). The 2013 Credit Agreement provides for an unsecured 5-year revolving credit facility to be used for general corporate purposes including back-stopping any commercial paper notes that we may issue. Subject to certain conditions stated in the 2013 Credit Agreement, we may borrow, prepay and re-borrow amounts under the 2013 Credit Agreement at any time during the term of the 2013 Credit Agreement. Interest under the 2013 Credit Agreement is based on either (a) a LIBOR-based formula or (b) the Base Rate formula, each as set forth in the 2013 Credit Agreement. Any amounts drawn pursuant to the 2013 Credit Agreement are due on April 20, 2018. No amounts were outstanding pursuant to the 2013 Credit Agreement as of May 31, 2013. The 2013 Credit Agreement contains certain customary representations and warranties, covenants and events of default, including the requirement that our total net debt to total capitalization ratio not exceed 45% on a consolidated basis. If any of the events of default occur and are not cured within applicable grace periods or waived, any unpaid amounts under the 2013 Credit Agreement may be declared immediately due and payable and the 2013 Credit Agreement may be terminated. On May 29, 2012, we borrowed $1.7 billion pursuant to a revolving credit agreement with JPMorgan Chase Bank, N.A., as initial lender and administrative agent; and J.P. Morgan Securities, LLC, as sole lead arranger and sole bookrunner (the 2012 Credit Agreement). On July 2, 2012, we repaid the $1.7 billion and the 2012 Credit Agreement expired pursuant to its terms. On May 27, 2011, we entered into two revolving credit agreements with BNP Paribas, as initial lender and administrative agent, and BNP Paribas Securities Corp., as sole lead arranger and sole bookrunner (the 2011 Credit Agreements), and borrowed $1.15 billion pursuant to these agreements. During fiscal 2012, we repaid the $1.15 billion and the 2011 Credit Agreements expired pursuant to their terms.

NOTES PAYABLE AND OTHER BORROWINGS Narrative (Details)

12 Months Ended

May 31, 2013

Long Term Notes Payable (Narrative) [Abstract]

We were in compliance with all debt-related covenants as of May 31, 2013. We were in compliance with the 2013 Credit Agreement's covenants as of May 31, 2013.

Revolving Credit Agreement

In April 2013, we entered into a $3.0 billion Revolving Credit Agreement with Wells Fargo Bank, N.A., Bank of America, N.A., BNP Paribas, JPMorgan Chase Bank, N.A. and certain other lenders (the 2013 Credit Agreement). The 2013 Credit Agreement provides for an unsecured 5-year revolving credit facility to be used for general corporate purposes including back-stopping any commercial paper notes that we may issue. Subject to certain conditions stated in the 2013 Credit Agreement, we may borrow, prepay and re-borrow amounts under the 2013 Credit Agreement at any time during the term of the 2013 Credit Agreement. Interest under the 2013 Credit Agreement is based on either (a) a LIBOR-based formula or (b) the Base Rate formula, each as set forth in the 2013 Credit Agreement. Any amounts drawn pursuant to the 2013 Credit Agreement are due on April 20, 2018. No amounts were outstanding pursuant to the 2013 Credit Agreement as of May 31, 2013. The 2013 Credit Agreement contains certain customary representations and warranties, covenants and events of default, including the requirement that our total net debt to total capitalization ratio not exceed 45% on a consolidated basis. If any of the events of default occur and are not cured within applicable grace periods or waived, any unpaid amounts under the 2013 Credit Agreement may be declared immediately due and payable and the 2013 Credit Agreement may be terminated. On May 29, 2012, we borrowed $1.7 billion pursuant to a revolving credit agreement with JPMorgan Chase Bank, N.A., as initial lender and administrative agent; and J.P. Morgan Securities, LLC, as sole lead arranger and sole bookrunner (the 2012 Credit Agreement). On July 2, 2012, we repaid the $1.7 billion and the 2012 Credit Agreement expired pursuant to its terms. On May 27, 2011, we entered into two revolving credit agreements with BNP Paribas, as initial lender and administrative agent, and BNP Paribas Securities Corp., as sole lead arranger and sole bookrunner (the 2011 Credit Agreements), and borrowed $1.15 billion pursuant to these agreements. During fiscal 2012, we repaid the $1.15 billion and the 2011 Credit Agreements expired pursuant to their terms.