RESTRUCTURING ACTIVITIES Narrative (Details) - USD ($) $ in Millions		3 Months Ended
		Aug. 31, 2021	Aug. 31, 2020
Restructuring reserve [Line Items]
Restructuring expenses		$ 38	$ 174
Fiscal 2022 Oracle Restructuring [Member]
Restructuring reserve [Line Items]
Total estimated restructuring costs	[1]	353
Restructuring expenses		55
Remaining expenses to incur		$ 298
Expected completion date		May 31, 2024
Fiscal 2022 Oracle Restructuring [Member] | Maximum [Member]
Restructuring reserve [Line Items]
Total estimated restructuring costs		$ 353

[1] Restructuring costs recorded for individual line items primarily related to employee severance costs.