ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	May 31, 2012	May 31, 2011	May 31, 2010
Acquisition Related and Other Expenses [Abstract]
Transitional and other employee related costs	$ 25	$ 129	$ 66
Stock-based compensation	33	10	15
Professional fees and other, net	13	66	68
Business combination adjustments, net	(15)	3	5
Total acquisition related and other expenses	56	208	154
Advertising [Abstract]
Advertising expenses	79	88	75
Foreign Currency [Abstract]
Net foreign exchange transaction gains (losses) included in non-operating income (expense), net	(105)	11	(149)
General and Administrative Expenses (Narrative) [Abstract]
Recovery of legal costs		120
Non-Operating Income (Expense), net [Abstract]
Interest income	231	163	122
Foreign currency gains (losses), net	(105)	11	(148)
Noncontrolling interests in income	(119)	(97)	(95)
Other income, net	15	109	56
Total non-operating income (expense), net	22	186	(65)
Foreign currency remeasurement loss resulting from designation of our Venezuelan subsidiary as "highly inflationary"			81
Other Receivables [Narrative] [Abstract]
Other receivables included in prepaid expenses and other current assets	812	876
Sales of Financing Receivables [Narrative] [Abstract]
Sales of financing receivables	$ 1,600	$ 1,500