SUMMARY OF CLOUD SERVICES AND LICENSE SUPPORT REVENUES BY ECOSYSTEMS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2021	Nov. 30, 2020
Disaggregation of Revenue [Line Items]
Total revenues	$ 10,360	$ 9,800	$ 20,087	$ 19,167
Applications Cloud Services and License Support [Member]
Disaggregation of Revenue [Line Items]
Total revenues	3,149	2,901	6,190	5,717
Infrastructure Cloud Services and License Support [Member]
Disaggregation of Revenue [Line Items]
Total revenues	4,405	4,211	8,735	8,342
Cloud services and license support [Member]
Disaggregation of Revenue [Line Items]
Total revenues	$ 7,554	$ 7,112	$ 14,925	$ 14,059