v3.25.2
LEASES, OTHER COMMITMENTS AND CERTAIN CONTINGENCIES Narrative (Details) - USD ($)
 12 Months Ended
May 31, 2025
May 31, 2024
May 31, 2023
Leases Other Commitments And Certain Contingencies Disclosure [Line Items]      
Finance lease, ROU assets, accumulated depreciation $ 55,000,000    
Finance lease, ROU assets, net ofaccumulated depreciation $ 2,900,000,000    
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Property, Plant and Equipment, Net    
Finance lease, current lease liabilities $ 257,000,000    
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Other Liabilities, Current    
Finance lease, non-current lease liabilities $ 2,700,000,000    
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other Liabilities, Noncurrent    
Finance lease ROU assets in exchange for finance lease obligations $ 2,900,000,000    
Cash paid for amounts included in the measurement of finance lease liabilities $ 27,000,000    
Weighted average remaining lease term for finance leases 15 years    
Weighted average discount rate used for calculating finance lease obligations 5.50%    
Finance leases $ 2,934,000,000 $ 0  
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Finance leases Finance leases  
Additional operating lease commitments $ 43,400,000,000    
Operating lease expenses $ 1,716,000,000 $ 1,159,000,000 $ 883,000,000
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other non-current assets Other non-current assets  
Right of use assets operating leases $ 13,145,000,000 $ 7,290,000,000  
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Other current liabilities Other current liabilities  
Operating lease liabilities, current $ 1,914,000,000 $ 1,290,000,000  
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Operating lease liabilities, non-current Operating lease liabilities, non-current  
Operating lease liabilities, non-current $ 11,536,000,000 $ 6,255,000,000  
Cash paid for operating lease liabilities $ 1,685,000,000 $ 1,168,000,000 $ 894,000,000
Operating leases weighted average remaining lease term 10 years 9 years  
Operating lease obligations, weighted average discount rate 5.30% 5.10%  
Minimum [Member]      
Leases Other Commitments And Certain Contingencies Disclosure [Line Items]      
Operating leases remaining terms 1 year    
Operating leases not yet commenced, terms 10 years    
Maximum [Member]      
Leases Other Commitments And Certain Contingencies Disclosure [Line Items]      
Operating leases remaining terms 15 years    
Operating leases not yet commenced, terms 16 years