SUMMARY OF TOTAL REVENUES BY GEOGRAPHIC REGION (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
Americas [Member]
Disaggregation of Revenue [Line Items]
Total revenues		5,736	5,259	11,056	10,327
EMEA [Member]
Disaggregation of Revenue [Line Items]
Total revenues	[1]	2,953	2,852	5,737	5,590
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Total revenues		$ 1,671	$ 1,689	$ 3,294	$ 3,250

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