NOTES PAYABLE AND OTHER BORROWINGS Table (Details) € in Millions, $ in Millions	12 Months Ended
	May. 31, 2015 USD ($)	May. 31, 2013 USD ($)	May. 05, 2015 USD ($)	Jul. 08, 2014 USD ($)	May. 31, 2014 USD ($)	Jul. 16, 2013 USD ($)	Jul. 10, 2013 EUR (€)	Oct. 25, 2012 USD ($)	May. 29, 2012 USD ($)	Jul. 12, 2010 USD ($)	Jul. 08, 2009 USD ($)	Apr. 09, 2008 USD ($)	Jan. 13, 2006 USD ($)
Notes Payable Other Borrowings [Line Items]
Outstanding commercial paper	$ 0				$ 0
Principal Payments for All Borrowings [Abstract]
Fiscal 2016	2,000
Fiscal 2018	6,000
Fiscal 2019	2,000
Fiscal 2020	4,500
Thereafter	27,966
Total	$ 42,466		$ 10,000	$ 10,000		$ 3,000	€ 2,000	$ 5,000		$ 3,250	$ 4,500	$ 5,000	$ 5,750
Revolving Credit Agreements [Line Items]
Debt Instrument Covenant Compliance	We were in compliance with all debt-related covenants at May 31, 2015.
2013 Credit Agreement [Member]
Revolving Credit Agreements [Line Items]
Revolving credit agreement initiation date	Apr. 22, 2013
Revolving credit agreement capacity	$ 3,000
Revolving credit agreement amount outstanding	$ 0				$ 0
Revolving credit agreement due date	Apr. 20, 2018
Maximum total net debt to total capitalization ratio	0.45
Debt Instrument Covenant Compliance	We were in compliance with the 2013 Credit Agreement's covenants as of May 31, 2015.
2012 Credit Agreement [Member]
Revolving Credit Agreements [Line Items]
Revolving credit agreement issuance date	May 29, 2012
Revolving credit agreement amount borrowed									$ 1,700
Repayments of credit agreements		$ 1,700
Maximum [Member]
Notes Payable Other Borrowings [Line Items]
Outstanding commercial paper	$ 3,000