RESTRUCTURING ACTIVITIES (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Aug. 31, 2012
Restructuring reserve [Line Items]
Accrued at period start	$ 337	[1]
Initial Costs	151	[2]
Adjustments to Cost	(6)	[3]
Cash Payments	(124)
Others	(8)	[4]
Accrued at period end	350	[1]
Total Expected Program Costs	297
Fiscal 2013 Oracle Restructuring Plan [Member]
Restructuring reserve [Line Items]
Accrued at period start	0
Initial Costs	137	[2],[5]
Cash Payments	(55)	[5]
Others	(5)	[4],[5]
Accrued at period end	77	[5]
Total Costs Accrued to Date	137	[5]
Total Expected Program Costs	297	[5]
Fiscal 2013 Oracle Restructuring Plan [Member] | New software licenses and cloud software subscriptions [Member]
Restructuring reserve [Line Items]
Accrued at period start	0
Initial Costs	42	[2],[5]
Cash Payments	(18)	[5]
Others	1	[4],[5]
Accrued at period end	25	[5]
Total Costs Accrued to Date	42	[5]
Total Expected Program Costs	78	[5]
Fiscal 2013 Oracle Restructuring Plan [Member] | Software license updates and product support [Member]
Restructuring reserve [Line Items]
Accrued at period start	0
Initial Costs	9	[2],[5]
Cash Payments	(2)	[5]
Others	2	[4],[5]
Accrued at period end	9	[5]
Total Costs Accrued to Date	9	[5]
Total Expected Program Costs	16	[5]
Fiscal 2013 Oracle Restructuring Plan [Member] | Hardware systems business [Member]
Restructuring reserve [Line Items]
Accrued at period start	0
Initial Costs	27	[2],[5]
Cash Payments	(9)	[5]
Others	1	[4],[5]
Accrued at period end	19	[5]
Total Costs Accrued to Date	27	[5]
Total Expected Program Costs	85	[5]
Fiscal 2013 Oracle Restructuring Plan [Member] | Services [Member]
Restructuring reserve [Line Items]
Accrued at period start	0
Initial Costs	20	[2],[5]
Cash Payments	(9)	[5]
Accrued at period end	11	[5]
Total Costs Accrued to Date	20	[5]
Total Expected Program Costs	75	[5]
Fiscal 2013 Oracle Restructuring Plan [Member] | General and administrative and other [Member]
Restructuring reserve [Line Items]
Accrued at period start	0
Initial Costs	39	[2],[5]
Cash Payments	(17)	[5]
Others	(9)	[4],[5]
Accrued at period end	13	[5]
Total Costs Accrued to Date	39	[5]
Total Expected Program Costs	43	[5]
Other Restructuring Plans [Member]
Restructuring reserve [Line Items]
Accrued at period start	337	[6]
Initial Costs	14	[2],[6]
Adjustments to Cost	(6)	[3],[6]
Cash Payments	(69)	[6]
Others	(3)	[4],[6]
Accrued at period end	$ 273	[6]

[1] The balances at August 31, 2012 and May 31, 2012 included $207 million and $178 million, respectively, recorded in other current liabilities, and $143 million and $159 million, respectively, recorded in other non-current liabilities.

[2] Costs recorded for the respective restructuring plans during the current period presented.

[3] All plan adjustments were changes in estimates whereby inceases and decreases in costs were generally recorded to operating expenses in the period of adjustments.

[4] Represents foreign currency translation and certain other adjustments.

[5] Restructuring costs recorded for individual line items presented related to employee severance costs except for general and administrative and other, which included $27 million recorded during the first three months of fiscal 2013 for facilities related restructuring, contract termination and other costs.

[6] Other restructuring plans presented in the table above included condensed information for other Oracle-based plans and other plans associated with certian of our acquisitions whereby we continued to make cash outlays to settle obligations under these plans during the period presented but for which the current impact to our consolidated statements of operations was not significant.