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Earnings Per Share | 12 Months Ended
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Sep. 30, 2025
Earnings Per Share [Abstract] |
Earnings Per Share | Note 16—Earnings Per Share The following tables present earnings per share:
| For the Year Ended September 30, 2025
| Basic Earnings Per Share |  | Diluted Earnings Per Share
| Income Allocation (A)(1) |  | Weighted- Average Shares Outstanding (B) |  | Earnings per Share = (A)/(B)(2) |  | Income Allocation (A)(1) |  | Weighted- Average Shares Outstanding (B) |  | Earnings per Share = (A)/(B)(2)
| (in millions, except per share data)
Class A common stock | $ | 17,511 |  |  | 1,714 |  |  | $ | 10.22 |  |  | $ | 20,058 |  | (3) | 1,966 |  | (3) | $ | 10.20 |
Class B-1 common stock | 77 |  |  | 5 |  |  | $ | 15.97 |  |  | $ | 77 |  |  | 5 |  |  | $ | 15.95 |
Class B-2 common stock(4) | 1,891 |  |  | 120 |  |  | $ | 15.72 |  |  | $ | 1,889 |  |  | 120 |  |  | $ | 15.70 |
Class C common stock | 374 |  |  | 9 |  |  | $ | 40.87 |  |  | $ | 373 |  |  | 9 |  |  | $ | 40.82 |
Participating securities | 205 |  |  | Not presented |  | Not presented |  | $ | 204 |  |  | Not presented |  | Not presented
Net income | $ | 20,058 |  |  |  |  |  |  |  |  |  |  |
| For the Year Ended September 30, 2024
| Basic Earnings Per Share |  | Diluted Earnings Per Share
| Income Allocation (A)(1) |  | Weighted- Average Shares Outstanding (B) |  | Earnings per Share = (A)/(B)(2) |  | Income Allocation (A)(1) |  | Weighted- Average Shares Outstanding (B) |  | Earnings per Share = (A)/(B)(2)
| (in millions, except per share data)
Class A common stock | $ | 15,790 |  |  | 1,621 |  |  | $ | 9.74 |  |  | $ | 19,743 |  | (3) | 2,029 |  | (3) | $ | 9.73 |
Class B-1 common stock | 2,292 |  |  | 148 |  |  | $ | 15.46 |  |  | $ | 2,289 |  |  | 148 |  |  | $ | 15.45 |
Class B-2 common stock(4) | 752 |  |  | 49 |  |  | $ | 15.45 |  |  | $ | 751 |  |  | 49 |  |  | $ | 15.43 |
Class C common stock | 623 |  |  | 16 |  |  | $ | 38.97 |  |  | $ | 623 |  |  | 16 |  |  | $ | 38.92 |
Participating securities | 286 |  |  | Not presented |  | Not presented |  | $ | 286 |  |  | Not presented |  | Not presented
Net income | $ | 19,743 |  |  |  |  |  |  |  |  |  |  |
| For the Year Ended September 30, 2023
| Basic Earnings Per Share |  | Diluted Earnings Per Share
| Income Allocation (A)(1) |  | Weighted- Average Shares Outstanding (B) |  | Earnings per Share = (A)/(B)(2) |  | Income Allocation (A)(1) |  | Weighted- Average Shares Outstanding (B) |  | Earnings per Share = (A)/(B)(2)
| (in millions, except per share data)
Class A common stock | $ | 13,415 |  |  | 1,618 |  |  | $ | 8.29 |  |  | $ | 17,273 |  | (3) | 2,085 |  | (3) | $ | 8.28 |
Class B-1 common stock | 3,254 |  |  | 245 |  |  | $ | 13.26 |  |  | $ | 3,251 |  |  | 245 |  |  | $ | 13.24 |
Class C common stock | 320 |  |  | 10 |  |  | $ | 33.17 |  |  | $ | 319 |  |  | 10 |  |  | $ | 33.13 |
Participating securities | 284 |  |  | Not presented |  | Not presented |  | $ | 284 |  |  | Not presented |  | Not presented
Net income | $ | 17,273 |  |  |  |  |  |  |  |  |  |  |
(1)Income allocation is based on the weighted-average number of as-converted class A common stock outstanding as shown in the table below. (2)Figures in the table may not recalculate exactly due to rounding. Basic and diluted earnings per share are calculated based on unrounded numbers. (3)Diluted class A common stock earnings per share calculation includes the assumed conversion of any class B-1, B-2 and C common stock and participating securities on an as-converted basis as shown in the table below and the incremental common stock equivalents related to employee stock plans, as calculated under the treasury stock method. In fiscal 2025, 2024 and 2023, the common stock equivalents were not material for each period. (4)No shares of class B-2 common stock were outstanding prior to the class B-1 common stock exchange offer in May 2024. See Note 15—Stockholders’ Equity for further details. The following table presents the weighted-average number of as-converted class A common stock outstanding:
| For the Years Ended September 30,
| 2025 |  | 2024 |  | 2023
| (in millions)
Class B-1 common stock | 8 |  |  | 235 |  |  | 392 |
Class B-2 common stock(1) | 185 |  |  | 77 |  |  | — |
Class C common stock | 37 |  |  | 64 |  |  | 39 |
Participating securities | 20 |  |  | 29 |  |  | 34 |
(1)No shares of class B-2 common stock were outstanding prior to the class B-1 common stock exchange offer in May 2024. See Note 15—Stockholders’ Equity for further details.

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