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v3.25.2

COMMON STOCK AND STOCK-BASED COMPENSATION - Additional Information (Details) $ / shares in Units, $ in Millions | 12 Months Ended
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May 31, 2025 USD ($) $ / shares shares | May 31, 2024 USD ($) $ / shares shares | May 31, 2023 USD ($) $ / shares shares
Common Stock and Share Based Compensation [Line Items] |  |  |
Weighted average fair value per share of the options granted (in dollars per share) | $ / shares | $ 25.90 | $ 32.78 | $ 31.31
Restricted Stock And Restricted Stock Units |  |  |
Common Stock and Share Based Compensation [Line Items] |  |  |
Unrecognized compensation costs from stock options, net of estimated forfeitures, to be recognized as operating overhead expense over a weighted average period (in years) | 2 years 6 months |  |
Restricted stock granted to key employees under 1990 Plan, weighted average values per share (in dollars per share) | $ / shares | $ 82.32 | $ 103.13 | $ 115.56
Vested, fair value | $ 221 | $ 340 | $ 250
Unrecognized compensation costs from restricted stock, net of estimated forfeitures | $ 631 |  |
Class A Common Stock |  |  |
Common Stock and Share Based Compensation [Line Items] |  |  |
Common stock, no par value (in dollars per share) | $ / shares | $ 0 |  |
Common stock, number of shares authorized (in shares) | shares | 400,000,000 |  |
Common stock, Class A conversion ratio to Class B (in shares) | 1 |  |
Class B Common Stock |  |  |
Common Stock and Share Based Compensation [Line Items] |  |  |
Common stock, no par value (in dollars per share) | $ / shares | $ 0 |  |
Common stock, number of shares authorized (in shares) | shares | 2,400,000,000 |  |
Class B Common Stock | ESPPs |  |  |
Common Stock and Share Based Compensation [Line Items] |  |  |
Employee stock purchase plans, payroll deductions | 10.00% |  |
Employee stock purchase plan offering period | 6 months |  |
Shares purchased, price as percentage of lower of the fair market value | 85.00% |  |
Purchase of shares by employee (in shares) | shares | 3,600,000 | 3,100,000 | 3,000,000.0
Stock Incentive Plan |  |  |
Common Stock and Share Based Compensation [Line Items] |  |  |
Stock options vesting period (in years) | 4 years |  |
Stock options expiration from the date of grant (in years) | 10 years |  |
Options exercisable (in shares) | shares | 49,800,000 |  |
Options exercisable (in dollars per share) | $ / shares | $ 98.00 |  |
Stock Incentive Plan | Stock options |  |  |
Common Stock and Share Based Compensation [Line Items] |  |  |
Unrecognized compensation costs from stock options, net of estimated forfeitures | $ 400 |  |
Unrecognized compensation costs from stock options, net of estimated forfeitures, to be recognized as operating overhead expense over a weighted average period (in years) | 2 years 4 months 24 days |  |
Stock Incentive Plan | Class B Common Stock |  |  |
Common Stock and Share Based Compensation [Line Items] |  |  |
Shares available for grant (in shares) | shares | 798,000,000 |  |
Minimum term of market traded options for estimates of expected volatility (in years) | 1 year |  |
Aggregate intrinsic value for options outstanding | $ 20 |  |
Aggregate intrinsic value for options exercisable | 20 |  |
Total intrinsic value of options exercised | $ 120 | $ 305 | $ 438
Weighted average remaining contractual life for options outstanding (in years) | 5 years 4 months 24 days |  |
Weighted average remaining contractual life for options exercisable (in years) | 3 years 10 months 24 days |  |

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