SUMMARY OF CLOUD SERVICES AND LICENSE SUPPORT REVENUES BY ECOSYSTEMS (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2021	Aug. 31, 2020
Disaggregation of Revenue [Line Items]
Total revenues	$ 9,728	$ 9,367
Applications Cloud Services and License Support [Member]
Disaggregation of Revenue [Line Items]
Total revenues	3,041	2,816
Infrastructure Cloud Services and License Support [Member]
Disaggregation of Revenue [Line Items]
Total revenues	4,330	4,131
Cloud services and license support [Member]
Disaggregation of Revenue [Line Items]
Total revenues	$ 7,371	$ 6,947