INCOME TAXES Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2026	May 31, 2025	May 31, 2024
Income Tax Examination [Line Items]
Estimated deferred tax liability	$ 2,000
Deferred Tax Assets, Net [Abstract]
Net deferred tax assets	11,219	$ 10,248
Valuation allowance	2,483	1,962
Tax Credit Carryforwards [Abstract]
Tax credit carryforwards subject to limitation on utilization	1,500
Tax credit carryforwards not subject to expiration dates	939
Tax credit carryforwards subject to expiration dates	518
Unrecognized Tax Benefits (Narrative) [Abstract]
Unrecognized tax benefits that would affect our effective tax rate if recognized	4,900	4,500	$ 4,200
Interest and penalties related to uncertain tax positions recognized in our provision for income taxes	594	321	$ 199
Interest and penalties related to uncertain tax positions accrued	2,700	2,100
Net tax expense	933
other current liabilities
Income Tax Examination [Line Items]
Current income taxes payable	$ 583	$ 2,300
Earliest Tax Year [Member]
Tax Credit Carryforwards [Abstract]
Tax credit carryforward expiration dates	Jun. 01, 2027
Latest Tax Year [Member]
Tax Credit Carryforwards [Abstract]
Tax credit carryforward expiration dates	May 31, 2046
Federal [Member]
Operating Loss Carryforwards [Abstract]
Net operating loss carryforwards	$ 374
Federal net operating loss carryforwards not subject to expiration	234
Federal [Member] | Expire in various years between fiscal 2027 and fiscal 2038 [Member]
Operating Loss Carryforwards [Abstract]
Net operating loss carryforwards	$ 140
Federal [Member] | Earliest Tax Year [Member]
Operating Loss Carryforwards [Abstract]
Operating loss carryforwards expiration date	Jun. 01, 2027
Federal [Member] | Latest Tax Year [Member]
Operating Loss Carryforwards [Abstract]
Operating loss carryforwards expiration date	May 31, 2038
State [Member]
Operating Loss Carryforwards [Abstract]
Net operating loss carryforwards	$ 2,700
State net operating loss carryforwards not subject to expiration	275
State [Member] | Expire in various years between fiscal 2027 and fiscal 2046 [Member]
Operating Loss Carryforwards [Abstract]
Net operating loss carryforwards	$ 2,400
State [Member] | Earliest Tax Year [Member]
Operating Loss Carryforwards [Abstract]
Operating loss carryforwards expiration date	Jun. 01, 2027
State [Member] | Latest Tax Year [Member]
Operating Loss Carryforwards [Abstract]
Operating loss carryforwards expiration date	May 31, 2046
Foreign [Member]
Operating Loss Carryforwards [Abstract]
Net operating loss carryforwards	$ 2,000
Foreign net operating loss carryforwards not subject to expiration	1,900
Foreign net operating loss carryforwards subject to expiration	79
Capital loss carryforwards	$ 260
Foreign [Member] | Earliest Tax Year [Member]
Operating Loss Carryforwards [Abstract]
Operating loss carryforwards expiration date	Jun. 01, 2027
Foreign [Member] | Latest Tax Year [Member]
Operating Loss Carryforwards [Abstract]
Operating loss carryforwards expiration date	May 31, 2046