Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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-Name Accounting Standards Codification
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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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A brief description of status of the tax examination, significant findings to date, and the entity's position with respect to the findings.

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INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended
INCOME TAXES (Details) - USD ($) $ in Millions	Aug. 31, 2016	Aug. 31, 2015	May 31, 2016
Income Tax Examination [Line Items]
Effective income tax rate	22.80%	24.40%
Net deferred tax assets	$ 982		$ 1,100
Domestic Country [Member]
Income Tax Examination [Line Items]
Income tax examinations	Domestically, U.S. federal and state taxing authorities are currently examining income tax returns of Oracle and various acquired entities for years through fiscal 2015. Our U.S. federal income tax returns have been examined for all years prior to fiscal 2007, and we are no longer subject to audit for those periods. Our U.S. state income tax returns, with some exceptions, have been examined for all years prior to fiscal 2004, and we are no longer subject to audit for those periods.
Foreign Country [Member]
Income Tax Examination [Line Items]
Income tax examinations	Internationally, tax authorities for numerous non-U.S. jurisdictions are also examining returns affecting our unrecognized tax benefits. With some exceptions, we are generally no longer subject to tax examinations in non-U.S. jurisdictions for years prior to fiscal 1997.