LEGAL PROCEEDINGS (Details) - USD ($)			3 Months Ended
	Sep. 15, 2016	Jun. 30, 2016	Aug. 31, 2016
Hewlett-Packard Litigation [Member]
Legal Proceedings [Line Items]
Damages awarded, value		$ 3,000,000,000
Damages paid, value		$ 0	$ 0
Inestimable loss related to litigation			We cannot currently estimate a reasonably possible range of loss for this action due to the complexities and uncertainty surrounding the appeal process and the nature of the claims.
State of Oregon Litigation [Member] | Subsequent Event
Legal Proceedings [Line Items]
Loss contingency, settlement agreement, terms	On September 15, 2016, the State of Oregon, Oracle and Mythics, Inc. executed a comprehensive settlement resolving all outstanding litigation in these lawsuits.
Loss related to litigation settlement	The settlement was immaterial to Oracle’s consolidated financial statements.
Other Litigation [Member]
Legal Proceedings [Line Items]
Other litigation			We are party to various other legal proceedings and claims, either asserted or unasserted, which arise in the ordinary course of business, including proceedings and claims that relate to acquisitions we have completed or to companies we have acquired or are attempting to acquire. While the outcome of these matters cannot be predicted with certainty, we do not believe that the outcome of any of these matters, individually or in the aggregate, will result in losses that are materially in excess of amounts already recognized, if any.