BASIS OF PRESENTATION, RECENT ACCOUNTING PRONOUNCEMENTS AND OTHER Narrative (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Jun. 01, 2019	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2020	Nov. 30, 2019	Nov. 30, 2018
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]		us-gaap:OtherAssetsNoncurrent			us-gaap:OtherAssetsNoncurrent
Right of use assets operating leases		$ 1,900			$ 1,900
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]		us-gaap:OtherLiabilitiesCurrent			us-gaap:OtherLiabilitiesCurrent
Operating lease liabilities		$ 584			$ 584
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]		us-gaap:OtherLiabilitiesNoncurrent			us-gaap:OtherLiabilitiesNoncurrent
Operating lease liabilities		$ 1,400			$ 1,400
Operating lease expenses		150			298
Sublease income		4			8
Cash paid for operating lease liabilities		$ 156			304
Right of use asset in exchange for operating lease obligation	$ 1,900				$ 2,200
Operating lease obligations, weighted average remaining lease term		5 years			5 years
Operating lease obligations, weighted average discount rate		3.20%			3.20%
Contract with Customer, Asset and Liability [Abstract]
Revenues recognized included in opening deferred revenue balance					$ 6,200	$ 6,200
Impairment losses recognized on receivables					0	0
Revenue, Performance Obligation [Abstract]
Remaining Performance Obligation, Amount, Total		$ 32,800			$ 32,800
Remaining Performance Obligation, Percentage, to be recognized in the next twelve months		60.00%			60.00%
Sales of Financing Receivables [Abstract]
Sales of financing receivables		$ 196	$ 216		$ 876	$ 1,000
Restricted Cash Equivalents [Abstract]
Restricted cash and cash equivalent item, description					nominal
Scenario Forecast [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Right of use asset in exchange for operating lease obligation				$ 301
Minimum [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating leases remaining terms					1 year
Maximum [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating leases remaining terms					12 years