DEFERRED REVENUES (Details) - USD ($) $ in Millions	Nov. 30, 2016	May 31, 2016
Deferred Revenues [Line Items]
Deferred revenues, current	$ 7,411	$ 7,655
Deferred revenues, non-current (in other non-current liabilities)	519	536
Total deferred revenues	7,930	8,191
Software license updates and product support [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	5,446	5,864
Cloud SaaS, PaaS and IaaS [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	954	705
Hardware support and other [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	605	675
Services business [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	350	339
New software licenses [Member]
Deferred Revenues [Line Items]
Deferred revenues, current	$ 56	$ 72