RESTRUCTURING ACTIVITIES (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Feb. 28, 2013
Restructuring reserve [Line Items]
Accrued at period start	$ 337	[1]
Initial Costs	352	[2]
Adjustments to Cost	(34)	[3]
Cash Payments	(358)
Others	(5)	[4]
Accrued at period end	292	[1]
Total Expected Program Costs	420
Fiscal 2013 Oracle Restructuring Plan [Member]
Restructuring reserve [Line Items]
Accrued at period start	0
Initial Costs	308	[2],[5]
Adjustments to Cost	(14)	[3],[5]
Cash Payments	(196)	[5]
Others	(5)	[4],[5]
Accrued at period end	93	[5]
Total Costs Accrued to Date	294	[5]
Total Expected Program Costs	420	[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	77	[2],[5]
Adjustments to Cost	(4)	[3],[5]
Cash Payments	(52)	[5]
Others	(1)	[4],[5]
Accrued at period end	20	[5]
Total Costs Accrued to Date	73	[5]
Total Expected Program Costs	86	[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	10	[2],[5]
Adjustments to Cost	(6)	[3],[5]
Cash Payments	(9)	[5]
Others	5	[4],[5]
Accrued at period end	0	[5]
Total Costs Accrued to Date	4	[5]
Total Expected Program Costs	7	[5]
Fiscal 2013 Oracle Restructuring Plan [Member] | Hardware systems business [Member]
Restructuring reserve [Line Items]
Accrued at period start	0
Initial Costs	90	[2],[5]
Adjustments to Cost	(2)	[3],[5]
Cash Payments	(55)	[5]
Others	(2)	[4],[5]
Accrued at period end	31	[5]
Total Costs Accrued to Date	88	[5]
Total Expected Program Costs	133	[5]
Fiscal 2013 Oracle Restructuring Plan [Member] | Services [Member]
Restructuring reserve [Line Items]
Accrued at period start	0
Initial Costs	60	[2],[5]
Adjustments to Cost	(2)	[3],[5]
Cash Payments	(38)	[5]
Others	1	[4],[5]
Accrued at period end	21	[5]
Total Costs Accrued to Date	58	[5]
Total Expected Program Costs	114	[5]
Fiscal 2013 Oracle Restructuring Plan [Member] | General and administrative and other [Member]
Restructuring reserve [Line Items]
Accrued at period start	0
Initial Costs	71	[2],[5]
Cash Payments	(42)	[5]
Others	(8)	[4],[5]
Accrued at period end	21	[5]
Total Costs Accrued to Date	71	[5]
Total Expected Program Costs	80	[5]
Other Restructuring Plans [Member]
Restructuring reserve [Line Items]
Accrued at period start	337	[6]
Initial Costs	44	[2],[6]
Adjustments to Cost	(20)	[3],[6]
Cash Payments	(162)	[6]
Accrued at period end	$ 199	[6]

[1] The balances at February 28, 2013 and May 31, 2012 included $191 million and $178 million, respectively, recorded in other current liabilities, and $101 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 increases 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 also included $39 million recorded during the first nine 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 certain 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.