Accounts Receivable (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2023 |
Jun. 30, 2024 |
Jun. 30, 2023 |
Sep. 30, 2023 |
|
| Receivables [Abstract] | ||||
| Accounts receivable, sale | $ 425 | $ 702 | $ 1,300 | |
| Outstanding receivables sold under factoring agreements | $ 31 | $ 681 | ||