LONG-TERM DEBT AND OTHER FINANCING ARRANGEMENTS - Schedule of Long-term Debt (Net of Discounts and Debt Issuance Costs) (Details) - USD ($) $ in Millions	May 31, 2025	May 31, 2024
Debt Instrument [Line Items]
Total senior unsecured debt	$ 19,899
Finance lease obligations	680	$ 431
Long-term debt, less current portion	20,579	20,203
Less current portion	1,428	68
Long-term debt, less current portion	$ 19,151	20,135
Senior Secured Debt Due 2034 1.875%
Debt Instrument [Line Items]
Interest Rate %	1.875%
Total senior unsecured debt	$ 729	780
Senior Unsecured Debt
Debt Instrument [Line Items]
Total senior unsecured debt	$ 19,170	18,992
Senior Unsecured Debt Due 2026 3.25%
Debt Instrument [Line Items]
Interest Rate %	3.25%
Total senior unsecured debt	$ 749	748
Senior Unsecured Debt Due 2028 3.40%
Debt Instrument [Line Items]
Interest Rate %	3.40%
Total senior unsecured debt	$ 498	498
Senior Unsecured Debt Due 2029 4.20%
Debt Instrument [Line Items]
Interest Rate %	4.20%
Total senior unsecured debt	$ 398	398
Senior Unsecured Debt Due 2030 3.10-4.25%
Debt Instrument [Line Items]
Total senior unsecured debt	$ 1,738	1,739
Senior Unsecured Debt Due 2030 3.10-4.25% \| Minimum
Debt Instrument [Line Items]
Interest Rate %	3.10%
Senior Unsecured Debt Due 2030 3.10-4.25% \| Maximum
Debt Instrument [Line Items]
Interest Rate %	4.25%
Senior Unsecured Debt Due 2031 2.40%
Debt Instrument [Line Items]
Interest Rate %	2.40%
Total senior unsecured debt	$ 992	992
Senior Unsecured Debt Due 2034 4.90%
Debt Instrument [Line Items]
Interest Rate %	4.90%
Total senior unsecured debt	$ 496	497
Senior Unsecured Debt Due 2035 3.90%
Debt Instrument [Line Items]
Interest Rate %	3.90%
Total senior unsecured debt	$ 495	495
Senior Unsecured Debt Due 2041 3.25%
Debt Instrument [Line Items]
Interest Rate %	3.25%
Total senior unsecured debt	$ 740	740
Senior Unsecured Debt Due 2043 3.875-4.10%
Debt Instrument [Line Items]
Total senior unsecured debt	$ 985	986
Senior Unsecured Debt Due 2043 3.875-4.10% \| Minimum
Debt Instrument [Line Items]
Interest Rate %	3.875%
Senior Unsecured Debt Due 2043 3.875-4.10% \| Maximum
Debt Instrument [Line Items]
Interest Rate %	4.10%
Senior Unsecured Debt Due 2044 5.10%
Debt Instrument [Line Items]
Interest Rate %	5.10%
Total senior unsecured debt	$ 742	743
Senior Unsecured Debt Due 2045 4.10%
Debt Instrument [Line Items]
Interest Rate %	4.10%
Total senior unsecured debt	$ 641	642
Senior Unsecured Debt Due 2046 4.55-4.75%
Debt Instrument [Line Items]
Total senior unsecured debt	$ 2,462	2,464
Senior Unsecured Debt Due 2046 4.55-4.75% \| Minimum
Debt Instrument [Line Items]
Interest Rate %	4.55%
Senior Unsecured Debt Due 2046 4.55-4.75% \| Maximum
Debt Instrument [Line Items]
Interest Rate %	4.75%
Senior Unsecured Debt Due 2047 4.40%
Debt Instrument [Line Items]
Interest Rate %	4.40%
Total senior unsecured debt	$ 736	737
Senior Unsecured Debt Due 2048 4.05%
Debt Instrument [Line Items]
Interest Rate %	4.05%
Total senior unsecured debt	$ 986	987
Senior Unsecured Debt Due 2049 4.95%
Debt Instrument [Line Items]
Interest Rate %	4.95%
Total senior unsecured debt	$ 835	836
Senior Unsecured Debt Due 2050 5.25%
Debt Instrument [Line Items]
Interest Rate %	5.25%
Total senior unsecured debt	$ 1,225	1,227
Senior Unsecured Debt Due 2065 4.50%
Debt Instrument [Line Items]
Interest Rate %	4.50%
Total senior unsecured debt	$ 245	246
Senior Unsecured Debt Due 2098 7.60%
Debt Instrument [Line Items]
Interest Rate %	7.60%
Total senior unsecured debt	$ 237	237
Euro Senior Unsecured Debt Due 2026 0.45%
Debt Instrument [Line Items]
Interest Rate %	0.45%
Total senior unsecured debt	$ 569	542
Euro Senior Unsecured Debt Due 2027 1.625%
Debt Instrument [Line Items]
Interest Rate %	1.625%
Total senior unsecured debt	$ 1,422	1,353
Euro Senior Unsecured Debt Due 2029 0.45%
Debt Instrument [Line Items]
Interest Rate %	0.45%
Total senior unsecured debt	$ 679	647
Euro Senior Unsecured Debt Due 2032 1.30%
Debt Instrument [Line Items]
Interest Rate %	1.30%
Total senior unsecured debt	$ 566	539
Euro Senior Unsecured Debt Due 2033 0.95%
Debt Instrument [Line Items]
Interest Rate %	0.95%
Total senior unsecured debt	$ 734	$ 699

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