Income Taxes - Schedule of Reconciliation of Total Income Tax Expense and Amount Computed by Statutory Federal Income Tax Rate to Income Before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Taxes computed at federal statutory rate	$ 1,028	$ 1,401	$ 350
U.S. and foreign return-to-provision adjustments	(142)
State and local income taxes, net of federal benefit	116	179	53
Foreign operations	115	138	38
Non-deductible expenses	48	53	70
Uncertain tax positions	(18)	65	(14)
Benefits from share-based payments	(13)	(69)	(5)
Valuation allowance	33	14	(129)
Foreign tax rate enactments	(30)	(61)	(10)
Benefit from U.S. tax loss carryback to prior years	0	(279)	(71)
Goodwill impairment charges			75
U.S. deferred tax adjustments related to foreign operations			51
Other, net	(67)	2	(25)
Provision for Income Taxes, Total	$ 1,070	$ 1,443	$ 383
Effective Tax Rate	21.90%	21.60%	23.00%