RESTRUCTURING ACTIVITIES (Details) - USD ($) $ in Millions		12 Months Ended
		May 31, 2022		May 31, 2021		May 31, 2020
Restructuring reserve [Line Items]
Accrued at period start	[2]	$ 225	[1]	$ 151		$ 262
Initial Costs	[2],[3]	222		457		278
Adjustments to Cost	[2],[4]	(31)		(26)		(28)
Cash Payments	[2]	(201)		(376)		(299)
Others	[2],[5]	(84)		19		(62)
Accrued at period end	[2]	131	[1]	225	[1]	151
Fiscal 2019 Oracle Restructuring [Member]
Restructuring reserve [Line Items]
Total Costs Accrued to Date				1,200
Fiscal 2022 Activity [Member] | Fiscal 2022 Oracle Restructuring [Member]
Restructuring reserve [Line Items]
Accrued at period start	[1],[2]	0
Initial Costs	[2],[3]	222
Adjustments to Cost	[2],[4]	1
Cash Payments	[2]	(92)
Others	[2],[5]	(71)
Accrued at period end	[1],[2]	60		0
Total Costs Accrued to Date	[2]	223
Total Expected Program Costs	[2]	392
Fiscal 2022 Activity [Member] | Fiscal 2022 Oracle Restructuring [Member] | Other [Member]
Restructuring reserve [Line Items]
Accrued at period start	[1],[2]	0
Initial Costs	[2],[3]	105
Adjustments to Cost	[2],[4]	3
Cash Payments	[2]	(29)
Others	[2],[5]	(69)
Accrued at period end	[1],[2]	10		0
Total Costs Accrued to Date	[2]	108
Total Expected Program Costs	[2]	154
Fiscal 2022 Activity [Member] | Fiscal 2022 Oracle Restructuring [Member] | Cloud and License [Member] | Operating Segments [Member]
Restructuring reserve [Line Items]
Accrued at period start	[1],[2]	0
Initial Costs	[2],[3]	90
Adjustments to Cost	[2],[4]	(2)
Cash Payments	[2]	(52)
Others	[2],[5]	(2)
Accrued at period end	[1],[2]	34		0
Total Costs Accrued to Date	[2]	88
Total Expected Program Costs	[2]	184
Fiscal 2022 Activity [Member] | Fiscal 2022 Oracle Restructuring [Member] | Hardware [Member] | Operating Segments [Member]
Restructuring reserve [Line Items]
Accrued at period start	[1],[2]	0
Initial Costs	[2],[3]	11
Adjustments to Cost	[2],[4]	0
Cash Payments	[2]	(4)
Others	[2],[5]	0
Accrued at period end	[1],[2]	7		0
Total Costs Accrued to Date	[2]	11
Total Expected Program Costs	[2]	22
Fiscal 2022 Activity [Member] | Fiscal 2022 Oracle Restructuring [Member] | Services [Member] | Operating Segments [Member]
Restructuring reserve [Line Items]
Accrued at period start	[1],[2]	0
Initial Costs	[2],[3]	16
Adjustments to Cost	[2],[4]	0
Cash Payments	[2]	(7)
Others	[2],[5]	0
Accrued at period end	[1],[2]	9		0
Total Costs Accrued to Date	[2]	16
Total Expected Program Costs	[2]	32
Fiscal 2022 Activity [Member] | Other Restructuring Plans [Member]
Restructuring reserve [Line Items]
Accrued at period start	[1],[2],[6]	225
Initial Costs	[2],[3],[6]	0
Adjustments to Cost	[2],[4],[6]	(32)
Cash Payments	[2],[6]	(109)
Others	[2],[5],[6]	(13)
Accrued at period end	[1],[2],[6]	71		225
Fiscal 2021 Activity [Member] | Other Restructuring Plans [Member]
Restructuring reserve [Line Items]
Accrued at period start	[2],[6]	9	[1]	13
Initial Costs	[2],[3],[6]			2
Adjustments to Cost	[2],[4],[6]			(1)
Cash Payments	[2],[6]			(5)
Others	[2],[5],[6]			0
Accrued at period end	[2],[6]			9	[1]	13
Fiscal 2021 Activity [Member] | Fiscal 2019 Oracle Restructuring [Member]
Restructuring reserve [Line Items]
Accrued at period start	[2]	216	[1]	138
Initial Costs	[2],[3]			455
Adjustments to Cost	[2],[4]			(25)
Cash Payments	[2]			(371)
Others	[2],[5]			19
Accrued at period end	[2]			216	[1]	138
Fiscal 2021 Activity [Member] | Fiscal 2019 Oracle Restructuring [Member] | Other [Member]
Restructuring reserve [Line Items]
Accrued at period start	[2]	57	[1]	22
Initial Costs	[2],[3]			137
Adjustments to Cost	[2],[4]			3
Cash Payments	[2]			(110)
Others	[2],[5]			5
Accrued at period end	[2]			57	[1]	22
Fiscal 2021 Activity [Member] | Fiscal 2019 Oracle Restructuring [Member] | Cloud and License [Member] | Operating Segments [Member]
Restructuring reserve [Line Items]
Accrued at period start	[2]	119	[1]	75
Initial Costs	[2],[3]			225
Adjustments to Cost	[2],[4]			(22)
Cash Payments	[2]			(171)
Others	[2],[5]			12
Accrued at period end	[2]			119	[1]	75
Fiscal 2021 Activity [Member] | Fiscal 2019 Oracle Restructuring [Member] | Hardware [Member] | Operating Segments [Member]
Restructuring reserve [Line Items]
Accrued at period start	[2]	16	[1]	14
Initial Costs	[2],[3]			39
Adjustments to Cost	[2],[4]			(2)
Cash Payments	[2]			(34)
Others	[2],[5]			(1)
Accrued at period end	[2]			16	[1]	14
Fiscal 2021 Activity [Member] | Fiscal 2019 Oracle Restructuring [Member] | Services [Member] | Operating Segments [Member]
Restructuring reserve [Line Items]
Accrued at period start	[2]	$ 24	[1]	27
Initial Costs	[2],[3]			54
Adjustments to Cost	[2],[4]			(4)
Cash Payments	[2]			(56)
Others	[2],[5]			3
Accrued at period end	[2]			24	[1]	27
Fiscal 2020 Activity [Member] | Other Restructuring Plans [Member]
Restructuring reserve [Line Items]
Accrued at period start	[2],[6]			13		49
Initial Costs	[2],[3],[6]					0
Adjustments to Cost	[2],[4],[6]					(11)
Cash Payments	[2],[6]					(8)
Others	[2],[5],[6]					(17)
Accrued at period end	[2],[6]					13
Fiscal 2020 Activity [Member] | Fiscal 2019 Oracle Restructuring [Member]
Restructuring reserve [Line Items]
Accrued at period start	[2]			138		213
Initial Costs	[2],[3]					278
Adjustments to Cost	[2],[4]					(17)
Cash Payments	[2]					(291)
Others	[2],[5]					(45)
Accrued at period end	[2]					138
Fiscal 2020 Activity [Member] | Fiscal 2019 Oracle Restructuring [Member] | Other [Member]
Restructuring reserve [Line Items]
Accrued at period start	[2]			22		108
Initial Costs	[2],[3]					59
Adjustments to Cost	[2],[4]					10
Cash Payments	[2]					(111)
Others	[2],[5]					(44)
Accrued at period end	[2]					22
Fiscal 2020 Activity [Member] | Fiscal 2019 Oracle Restructuring [Member] | Cloud and License [Member] | Operating Segments [Member]
Restructuring reserve [Line Items]
Accrued at period start	[2]			75		72
Initial Costs	[2],[3]					140
Adjustments to Cost	[2],[4]					(24)
Cash Payments	[2]					(112)
Others	[2],[5]					(1)
Accrued at period end	[2]					75
Fiscal 2020 Activity [Member] | Fiscal 2019 Oracle Restructuring [Member] | Hardware [Member] | Operating Segments [Member]
Restructuring reserve [Line Items]
Accrued at period start	[2]			14		18
Initial Costs	[2],[3]					28
Adjustments to Cost	[2],[4]					(1)
Cash Payments	[2]					(31)
Others	[2],[5]					0
Accrued at period end	[2]					14
Fiscal 2020 Activity [Member] | Fiscal 2019 Oracle Restructuring [Member] | Services [Member] | Operating Segments [Member]
Restructuring reserve [Line Items]
Accrued at period start	[2]			$ 27		15
Initial Costs	[2],[3]					51
Adjustments to Cost	[2],[4]					(2)
Cash Payments	[2]					(37)
Others	[2],[5]					0
Accrued at period end	[2]					$ 27

[1] As of May 31, 2022 and 2021, substantially all restructuring liabilities have been recorded in other current liabilities within our consolidated balance sheets.

[2] Restructuring costs recorded to each of the operating segments presented primarily related to employee severance costs. Other restructuring costs represented employee severance costs not related to our operating segments and certain other restructuring plan costs.

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

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

[5] Represents foreign currency translation and certain other non-cash adjustments.

[6] Other restructuring plans presented in the tables 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 periodic impact to our consolidated statements of operations was not significant.