DEFERRED REVENUES (Details) - USD ($) $ in Millions	May 31, 2016	May 31, 2015
Deferred Revenues [Line Items]
Deferred revenues, current	$ 7,655	$ 7,245
Deferred revenues, non-current (in other non-current liabilities)	536	393
Deferred Revenue	8,191	7,638
Software license updates and product support [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	5,864	5,635
Cloud SaaS, PaaS and IaaS [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	705	404
Hardware support and other [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	675	703
Services
Deferred Revenues [Line Items]
Deferred revenues, current	339	379
New software licenses [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	$ 72	$ 124