RESTRUCTURING ACTIVITIES (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	May 31, 2012		May 31, 2011		May 31, 2010
Restructuring reserve [Line Items]
Accrued at period start	$ 449	[1]	$ 546		$ 389
Initial Costs	300	[2]	504	[2]	634	[2]
Adjustments to Cost	(5)	[3]	(25)	[3]	(84)	[3]
Cash Payments	(385)		(592)		(645)
Others	(22)	[4]	16	[4]	252	[4]
Accrued at period end	337	[1]	449	[1]	546
Sun Restructuring Plan [Member]
Restructuring reserve [Line Items]
Accrued at period start	152	[5]	87	[5]
Initial Costs	235	[2],[5]	447	[2],[5]	342	[2],[5]
Adjustments to Cost	(20)	[3],[5]	(8)	[3],[5]
Cash Payments	(263)	[5]	(369)	[5]	(248)	[5]
Others	(6)	[4],[5]	(5)	[4],[5]	(7)	[4],[5]
Accrued at period end	98	[5]	152	[5]	87	[5]
Sun Restructuring Plan [Member] | New software licenses [Member]
Restructuring reserve [Line Items]
Accrued at period start	14	[5]	5	[5]
Initial Costs	46	[2],[5]	67	[2],[5]	6	[2],[5]
Adjustments to Cost	(8)	[3],[5]	(4)	[3],[5]
Cash Payments	(41)	[5]	(55)	[5]	(1)	[5]
Others	(2)	[4],[5]	1	[4],[5]
Accrued at period end	9	[5]	14	[5]	5	[5]
Sun Restructuring Plan [Member] | Software license updates and product support [Member]
Restructuring reserve [Line Items]
Accrued at period start	19	[5]	3	[5]
Initial Costs	31	[2],[5]	52	[2],[5]	6	[2],[5]
Adjustments to Cost	(2)	[3],[5]	(1)	[3],[5]
Cash Payments	(35)	[5]	(34)	[5]	(3)	[5]
Others	(1)	[4],[5]	(1)	[4],[5]
Accrued at period end	12	[5]	19	[5]	3	[5]
Sun Restructuring Plan [Member] | Hardware systems business [Member]
Restructuring reserve [Line Items]
Accrued at period start	10	[5]	42	[5]
Initial Costs	34	[2],[5]	53	[2],[5]	61	[2],[5]
Adjustments to Cost	1	[3],[5]	(3)	[3],[5]
Cash Payments	(33)	[5]	(83)	[5]	(19)	[5]
Others			1	[4],[5]
Accrued at period end	12	[5]	10	[5]	42	[5]
Sun Restructuring Plan [Member] | Services [Member]
Restructuring reserve [Line Items]
Accrued at period start	9	[5]	8	[5]
Initial Costs	32	[2],[5]	49	[2],[5]	11	[2],[5]
Adjustments to Cost	(2)	[3],[5]	(4)	[3],[5]
Cash Payments	(25)	[5]	(43)	[5]	(3)	[5]
Others	(2)	[4],[5]	(1)	[4],[5]
Accrued at period end	12	[5]	9	[5]	8	[5]
Sun Restructuring Plan [Member] | General and administrative and other [Member]
Restructuring reserve [Line Items]
Accrued at period start	100	[5]	29	[5]
Initial Costs	92	[2],[5]	226	[2],[5]	258	[2],[5]
Adjustments to Cost	(9)	[3],[5]	4	[3],[5]
Cash Payments	(129)	[5]	(154)	[5]	(222)	[5]
Others	(1)	[4],[5]	(5)	[4],[5]	(7)	[4],[5]
Accrued at period end	53	[5]	100	[5]	29	[5]
Other Restructuring Plans [Member]
Restructuring reserve [Line Items]
Accrued at period start	297	[6]	459	[6]	389	[6]
Initial Costs	65	[2],[6]	57	[2],[6]	292	[2],[6]
Adjustments to Cost	15	[3],[6]	(17)	[3],[6]	(84)	[3],[6]
Cash Payments	(122)	[6]	(223)	[6]	(397)	[6]
Others	(16)	[4],[6]	21	[4],[6]	259	[4],[6]
Accrued at period end	$ 239	[6]	$ 297	[6]	$ 459	[6]

[1] The balances at May 31, 2012 and 2011 included $178 million and $244 million recorded in other current liabilities, respectively, and $159 million and $205 million recorded in other non-current liabilities, respectively.

[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. In addition, includes accrued restructuring plan liabilities of $275 million that were assumed from our acquisition of Sun during fiscal 2010.

[5] Restructuring costs recorded for individual line items presented related to employee severance costs except for general and administrative and other, which included $23 million, $97 million and $44 million recorded during fiscal 2012, 2011 and 2010, respectively, for facilities related restructuring and contract termination 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 periods presented but for which the current fiscal year impact to our consolidated statements of operations was not significant.