CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) shares in Millions, $ in Millions |
Sep. 30, 2026 |
May 31, 2026 |
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| Statement of Financial Position [Abstract] | ||
| Allowances for receivables | $ 595 | $ 659 |
| Allowances for spare parts, supplies and fuel | $ 299 | $ 324 |
| Common stock, par value (in dollars per share) | $ 0.1 | $ 0.1 |
| Common stock, shares authorized (in shares) | 800 | 800 |
| Common stock, shares issued (in shares) | 318 | 318 |
| Treasury stock (in shares) | 84 | 78 |
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- Definition The amount of the valuation account as of the balance sheet date which reduces the carrying amount of spare parts, supplies and fuel to their net realizable value. This valuation account takes into consideration such factors as excessive quantities based on fleet usage, obsolescence and shrinkage. No definition available.
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- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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