INCOME TAXES (Tables)
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12 Months Ended |
May 31, 2026 |
| Income Tax Disclosure [Abstract] |
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| Schedule of Provision for Income Taxes |
The components of the provision for income taxes for the years ended May 31 were as follows (in millions): | | | | | | | | | | | | | | | | | | | 2026 | | 2025 | | 2024 | | Current provision | | | | | | | Domestic: | | | | | | | Federal | $ | 1,335 | | | $ | 891 | | | $ | 1,184 | | | State and local | 186 | | | 146 | | | 218 | | | Foreign | 384 | | | 359 | | | 265 | | | $ | 1,905 | | | $ | 1,396 | | | $ | 1,667 | | | Deferred provision | | | | | | | Domestic: | | | | | | | Federal | $ | (534) | | | $ | (302) | | | $ | (82) | | | State and local | (2) | | | 20 | | | 60 | | | Foreign | (9) | | | 235 | | | (140) | | | (545) | | | (47) | | | (162) | | | Total Provision | $ | 1,360 | | | $ | 1,349 | | | $ | 1,505 | |
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| Schedule of Income from Operations before Tax |
Income from operations before income taxes for the years ended May 31 were as follows (in millions): | | | | | | | | | | | | | | | | | | | 2026 | | 2025 | | 2024 | | United States | $ | 4,287 | | | $ | 3,614 | | | $ | 5,289 | | | Foreign | 1,506 | | | 1,827 | | | 547 | | | Total | $ | 5,793 | | | $ | 5,441 | | | $ | 5,836 | |
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| Schedule of Supplemental Cash Flow |
Cash paid for income taxes, net of refunds for the year ended May 31, 2026 were as follows (in millions): | | | | | | | | | | | 2026 | | Federal | | $ | 1,370 | | | State and local | | 140 | | | Foreign | | 402 | | | Total | | $ | 1,912 | |
Cash paid for interest expense and income taxes for the years ended May 31 was as follows (in millions): | | | | | | | | | | | | | | | | | | | 2026 | | 2025 | | 2024 | | Cash payments for: | | | | | | | Interest (net of capitalized interest) | $ | 881 | | | $ | 814 | | | $ | 744 | | | | | | | | | Income taxes | $ | 1,972 | | | $ | 1,285 | | | $ | 1,555 | | | Income tax refunds received | (60) | | | (35) | | | (122) | | | Cash tax payments, net | $ | 1,912 | | | $ | 1,250 | | | $ | 1,433 | |
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| Schedule of Total Income Tax Expense and Amount Computed by Statutory Federal Income Tax Rate to Income Before Income Taxes |
A reconciliation of total income tax expense and the amount computed by applying the statutory federal income tax to income before income taxes for the years ended May 31 is as follows (dollars in millions): | | | | | | | | | | | | | 2026 | | Amount | | Percent | | Statutory U.S. federal income tax rate | $ | 1,217 | | | 21.0 | % | State and local income taxes - net of federal benefit (1) | 118 | | | 2.0 | % | | Foreign tax effects | | | | | Brazil | | | | | Other | 3 | | | — | % | | Valuation allowances | (97) | | | (1.6) | % | | Other jurisdictions | 120 | | | 2.0 | % | | Effect of cross-border tax laws | (1) | | | — | % | | Tax credits | (47) | | | (0.8) | % | | | | | | Nontaxable or nondeductible items | 14 | | | 0.3 | % | | Changes in unrecognized tax benefits | 45 | | | 0.8 | % | | Other adjustments | (12) | | | (0.2) | % | | Effective Tax Rate | $ | 1,360 | | | 23.5 | % |
(1)State taxes in Tennessee, Alaska, California, Pennsylvania, Missouri, and Florida made up the majority (greater than 50 percent) of this category. | | | | | | | | | | | | | | | | | 2025 | | 2024 | | Taxes computed at federal statutory rate | | $ | 1,143 | | | $ | 1,226 | | | Increases (decreases) in income tax from: | | | | | | U.S. and foreign return-to-provision adjustments | | 5 | | | 11 | | | State and local income taxes, net of federal benefit | | 137 | | | 177 | | | Foreign operations | | 101 | | | 65 | | | Non-deductible expenses | | 72 | | | 48 | | | Uncertain tax positions | | (5) | | | (21) | | | Benefits from share-based payments | | (18) | | | (26) | | | Valuation allowance | | 21 | | | 59 | | | Foreign tax rate enactments | | 6 | | | — | | | State deferred tax remeasurement | | — | | | 54 | | | | | | | | Corporate structuring transactions | | (66) | | | — | | | Other, net | | (47) | | | (88) | | | Provision for income taxes | | $ | 1,349 | | | $ | 1,505 | | | Effective Tax Rate | | 24.8 | % | | 25.8 | % |
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| Schedule of Deferred Tax Assets and Liabilities |
The significant components of deferred tax assets and liabilities as of May 31 were as follows (in millions): | | | | | | | | | | | | | | | | | | | | | | | | | 2026 | | 2025 | | Deferred Tax Assets | | Deferred Tax Liabilities | | Deferred Tax Assets | | Deferred Tax Liabilities | | Property, equipment, leases, and intangibles | $ | 4,555 | | | $ | 10,045 | | | $ | 4,515 | | | $ | 10,434 | | | Employee benefits | 862 | | | 424 | | | 725 | | | 291 | | | Self-insurance accruals | 1,367 | | | — | | | 1,247 | | | — | | | Other | 637 | | | 56 | | | 591 | | | 42 | | | Net operating loss/credit carryforwards | 1,035 | | | — | | | 1,123 | | | — | | | Valuation allowances | (438) | | | — | | | (523) | | | — | | | $ | 8,018 | | | $ | 10,525 | | | $ | 7,678 | | | $ | 10,767 | |
The net deferred tax liabilities as of May 31 have been classified in the balance sheets as follows (in millions): | | | | | | | | | | | | | 2026 | | 2025 | Noncurrent deferred tax assets(1) | $ | 1,157 | | | $ | 1,116 | | | Noncurrent deferred tax liabilities | (3,664) | | | (4,205) | | | $ | (2,507) | | | $ | (3,089) | |
(1)Noncurrent deferred tax assets are included within “Other assets” in the accompanying consolidated balance sheets.
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| Schedule of Beginning and Ending Amount of Unrecognized Tax Benefits |
A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended May 31 is as follows (in millions): | | | | | | | | | | | | | | | | | | | 2026 | | 2025 | | 2024 | | Balance at beginning of year | $ | 155 | | | $ | 186 | | | $ | 212 | | | Increases for tax positions taken in the current year | 37 | | | 31 | | | 5 | | | Increases for tax positions taken in prior years | 22 | | | 33 | | | 4 | | | Decreases for tax positions taken in prior years | (23) | | | (11) | | | (3) | | | Settlements | (20) | | | (87) | | | (31) | | | Changes due to currency translation | 3 | | | 3 | | | (1) | | | Balance at end of year | $ | 174 | | | $ | 155 | | | $ | 186 | |
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