DEFERRED REVENUES (Details) - USD ($) $ in Millions	Nov. 30, 2015	May. 31, 2015
Deferred Revenues [Line Items]
Deferred revenues, current	$ 6,998	$ 7,245
Deferred revenues, non-current (in other non-current liabilities)	463	393
Total deferred revenues	7,461	7,638
Software license updates and product support [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	5,382	5,635
Hardware support and other [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	628	703
Services [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	339	379
Cloud SaaS, PaaS and IaaS [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	562	404
New software licenses [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	$ 87	$ 124