STOCK PROGRAMS - Summary of Status of Share Units (Details) - Share Units - Non-employee - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Shares | |||
| Outstanding at the beginning of the period (in shares) | 106,900 | ||
| Granted (in shares) | 12,200 | ||
| Dividend equivalents (in shares) | 1,600 | ||
| Converted (in shares) | (26,600) | ||
| Outstanding at the end of the period (in shares) | 94,100 | 106,900 | |
| Weighted-Average Grant Date Fair Value Per Share | |||
| Outstanding at the beginning of the period (in dollars per share) | $ 90.15 | ||
| Weighted-average grant date fair value (in dollars per share) | 95.75 | ||
| Dividend equivalents (in dollars per share) | 92.22 | ||
| Converted (in dollars per share) | 79.60 | ||
| Outstanding at the end of the period (in dollars per share) | $ 93.88 | $ 90.15 | |
| Intrinsic value | $ 3 | $ 2 | $ 2 |