ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES Narrative (Details) - USD ($) $ in Millions	5 Months Ended	7 Months Ended	12 Months Ended
	May 31, 2018	Dec. 31, 2017	May 31, 2019	May 31, 2018	May 31, 2017	Jun. 01, 2018	Jun. 01, 2016
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Accumulated other comprehensive income (loss)	$ (1,689)		$ (1,628)	$ (1,689)
(Accumulated deficit) retained earnings	$ 19,111		(3,496)	19,111
Operating expense			25,971	26,119	$ 24,879
Non-operating income, net			$ 815	$ 1,185	$ 565
Federal statutory income tax rate, percent	21.00%	35.00%	21.00%	29.20%	35.00%
Effect of Tax Cuts and Jobs Act 2017 [Abstract]
Provisonal charge to income tax expense				$ 6,900
Income tax expense related to one-time transition tax, tax cuts and jobs act 2017				(7,800)
Remeasurement of deferred tax assets and liabilities, tax cuts and jobs act 2017			$ 140	(911)
Adjustments to one-time transition tax, tax cuts and jobs act 2017			529
Contract with Customer, Asset and Liability [Abstract]
Revenues recognized included in opening deferred revenue balance			8,300
Revenue, Performance Obligation [Abstract]
Remaining Performance Obligation, Amount, Total			$ 36,200
Remaining Performance Obligation, Percentage, to be recognized in the next twelve months			62.00%
Sales of Financing Receivables [Abstract]
Sales of financing receivables			$ 1,800	1,700	$ 1,600
Concentrations of Risk [Abstract]
Customer Concentrations			No single customer accounted for 10% or more of our total revenues in fiscal 2019, 2018 or 2017.
Supplier Concentrations			We outsource the manufacturing, assembly and delivery of certain of our hardware products to a variety of companies, many of which are located outside the U.S. Further, we have simplified our supply chain processes by reducing the number of third-party manufacturing partners and the number of locations where these third-party manufacturers build our hardware products. Any inability of these third-party manufacturing partners to deliver the contracted services for our hardware products could adversely impact future operating results of our hardware business.
Credit Risk Concentrations			Financial instruments that are potentially subject to concentrations of credit risk consist primarily of cash and cash equivalents, marketable securities, derivatives and trade receivables. Our cash and cash equivalents are generally held with large, diverse financial institutions worldwide to reduce the amount of exposure to any single financial institution. Investment policies have been implemented that limit purchases of marketable debt securities to investment-grade securities. Our derivative contracts are transacted with various financial institutions with high credit standings and any exposure to counterparty credit-related losses in these contracts is largely mitigated with collateral security agreements that provide for collateral to be received or posted when the net fair values of these contracts fluctuate from contractually established thresholds. We generally do not require collateral to secure accounts receivable. The risk with respect to trade receivables is mitigated by credit evaluations we perform on our customers, the short duration of our payment terms for the significant majority of our customer contracts and by the diversification of our customer base.
Inventory Net [Abstract]
Total inventories	$ 398		$ 320	398
Other Receivables [Narrative] [Abstract]
Other receivables included in prepaid expenses and other current assets	$ 802		$ 776	802
Property, Plant and Equipment [Abstract]
Impairment of Property, Plant and Equipment			We did not recognize any significant property impairment charges in fiscal 2019, 2018 or 2017.
Goodwill, Intangible Assets and Impairment Assessments [Abstract]
Goodwill impairment loss			$ 0	0	0
Impairment of intangible assets			We did not recognize any intangible asset impairment charges in fiscal 2019, 2018 or 2017.
Foreign Currency [Abstract]
Net foreign exchange transaction losses included in non-operating income, net			$ 111	74	152
Advertising [Abstract]
Advertising expenses			$ 169	138	95
Research and Development and Software Development Costs [Abstract]
Research Development And Computer Software Activity Description			All research and development costs are expensed as incurred in accordance with ASC 730, Research and Development. Software development costs required to be capitalized under ASC 985-20, Costs of Software to be Sold, Leased or Marketed, and under ASC 350-40, Internal-Use Software, were not material to our consolidated financial statements in fiscal 2019, 2018 and 2017.
Minimum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, estimated useful lives			1 year
Goodwill, Intangible Assets and Impairment Assessments [Abstract]
Finite lived intangible assets, useful life			1 year
Maximum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, estimated useful lives			40 years
Goodwill, Intangible Assets and Impairment Assessments [Abstract]
Finite lived intangible assets, useful life			10 years
ASU 2014-09 [Member] | Restatement Adjustment
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Accumulated other comprehensive income (loss)							$ (43)
(Accumulated deficit) retained earnings							$ 820
ASU 2017-07 [Member] | Restatement Adjustment
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating expense				(54)	(42)
Non-operating income, net				$ (54)	$ (42)
ASU 2016-16 [Member] | Restatement Adjustment
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
(Accumulated deficit) retained earnings						$ (110)
Prepaid expense						$ (110)