Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 9 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Jul. 29, 2022 |
Jun. 30, 2022 |
Jun. 30, 2021 |
Jun. 30, 2022 |
Jun. 30, 2021 |
Jul. 22, 2022 |
Dec. 31, 2021 |
Jan. 31, 2021 |
|
| Stockholders Equity Note [Line Items] | ||||||||
| Share repurchase program | $ 12,000 | $ 8,000 | ||||||
| Share repurchase programs authorized | $ 7,300 | $ 7,300 | ||||||
| Cash dividends declared and paid, at a quarterly amount per Class A share | $ 798 | $ 698 | $ 2,409 | $ 2,102 | ||||
| Subsequent Event | Class A common stock | ||||||||
| Stockholders Equity Note [Line Items] | ||||||||
| Quarterly cash dividend (in dollars per share) | $ 0.375 | |||||||
| Subsequent Event | Series A preferred stock | ||||||||
| Stockholders Equity Note [Line Items] | ||||||||
| Stock issued during the period, new issues (in shares) | 176,853 | |||||||