INCOME TAXES - Reconciliation of Differences Between Federal Statutory Tax Rate and Effective Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
May 31, 2022	May 31, 2021	May 31, 2020
Reconciliation of Differences Between Amount Computed by Applying Federal Statutory Rate to our Income Before Provision for Income Taxes and Provision for Income Taxes [Abstract]
U.S. federal statutory tax rate	21.00%	21.00%	21.00%
Tax provision at statutory rate	$ (1,606)	$ (2,730)	$ (2,533)
Foreign earnings at other than United States rates	536	580	496
Net impact of intra-entity IP transfer	0	2,266	0
State tax expense, net of federal benefit	(132)	(206)	(172)
Settlements and releases from judicial decisions and statute expirations, net	(263)	(582)	(137)
Tax contingency interest accrual, net	(44)	(55)	(163)
Domestic tax contingency, net	(441)	(282)	(58)
Federal research and development credit	(222)	(169)	(151)
Stock-based compensation	263	300	166
Other, net	7	123	48
Total (provision for) benefit from income taxes	$ (932)	$ 747	$ (1,928)

Income tax reconciliation net impact of intra-entity ip tansfer.

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Reconciliation of Differences Between Amount Computed by Applying Federal Statutory Rate to our Income Before Provision for Income Taxes and Provision for Income Taxes [Abstract]

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No definition available.

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Settlements and releases from judicial decisions and statute expirations, net

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in income tax contingencies. Including, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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