SUMMARY OF TOTAL REVENUES BY GEOGRAPHIC REGION (Details) - USD ($) $ in Millions		3 Months Ended
		Aug. 31, 2021	Aug. 31, 2020
Disaggregation of Revenue [Line Items]
Total revenues		$ 9,728	$ 9,367
Americas [Member]
Disaggregation of Revenue [Line Items]
Total revenues		5,321	5,068
EMEA [Member]
Disaggregation of Revenue [Line Items]
Total revenues	[1]	2,784	2,738
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Total revenues		$ 1,623	$ 1,561

[1] Comprised of Europe, the Middle East and Africa