DEFERRED REVENUES (Details) (USD $) In Millions, unless otherwise specified	Nov. 30, 2014	May 31, 2014
Deferred Revenues [Line Items]
Deferred revenues, current	$ 6,816	$ 7,269
Deferred revenues, non-current (in other non-current liabilities)	408	404
Total deferred revenues	7,224	7,673
Software license updates and product support [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	5,520	5,909
Hardware systems support and other [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	621	664
Services [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	340	364
Cloud SaaS, PaaS and IaaS [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	242	248
New software licenses [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	$ 93	$ 84