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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) (Parenthetical) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2023
Dividends declared, quarterly, per share (in dollars per share) | $ 0.59 | $ 0.52 | $ 0.59 | $ 0.52 |  |
Dividends paid, quarterly, per share (in dollars per share) | $ 0.59 | $ 0.52 | $ 0.59 | $ 0.52 |  |
Book value of preferred stock | $ 871 |  | $ 871 |  | $ 1,031 |
Series A preferred stock |  |  |  |  |  |
Book value of preferred stock | $ 388 | $ 364 | $ 388 | $ 364 | $ 540 | $ 456

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