NOTES PAYABLE AND OTHER BORROWINGS Table (Details) (USD $) In Millions, unless otherwise specified				1 Months Ended	12 Months Ended	1 Months Ended			12 Months Ended
	May 31, 2013	Apr. 22, 2013	May 31, 2012	Apr. 30, 2013 2013 Credit Agreement [Member]	May 31, 2013 2013 Credit Agreement [Member]	Jul. 31, 2012 2012 Credit Agreement [Member]	May 31, 2012 2012 Credit Agreement [Member]	May 31, 2011 2011 Credit Agreement [Member]	May 31, 2012 2011 Credit Agreement [Member]
Commercial Paper Program and Commercial Paper Notes (Narrative) [Abstract]
Commercial paper capacity		$ 3,000
Outstanding commercial paper	0		0
Principal Payments for All Borrowings [Abstract]
Fiscal 2015	1,500
Fiscal 2016	2,000
Fiscal 2018	5,000
Thereafter	10,000
Total	18,500
Revolving Credit Agreements [Line Items]
Revolving credit agreement initiation date				Apr. 22, 2013
Revolving credit agreement capacity					3,000
Revolving credit agreement due date					Apr. 20, 2018
Revolving credit agreement amount outstanding					0
Maximum total net debt to total capitalization ratio					0.45
Revolving credit agreement issuance date							May 29, 2012	May 27, 2011
Revolving credit agreement amount borrowed							1,700	1,150
Repayments of credit agreements						$ 1,700			$ 1,150