DEFERRED REVENUES (Details) (USD $) In Millions, unless otherwise specified	Aug. 31, 2012	May 31, 2012
Deferred Revenues [Line Items]
Deferred revenues, current	$ 8,316	$ 7,035
Deferred revenues, non-current (in other non-current liabilities)	310	296
Total deferred revenues	8,626	7,331
Software license updates and product support [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	6,799	5,565
Hardware systems support and other [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	772	714
Services [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	414	403
New software licenses and cloud software subscriptions [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	$ 331	$ 353