Condensed Consolidated Statements of Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Statement of Stockholders' Equity [Abstract] | ||||
| Common stock, dividends per share declared (in dollars per share) | $ 0.785 | $ 0.755 | $ 2.355 | $ 2.265 |
| Preferred stock dividends per share declared (in dollars per share) | $ 0.36875 | $ 0.36875 | $ 1.10625 | $ 1.10625 |