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v3.23.3

Additional Financial Information - Narrative (Details) $ / shares in Units, $ in Millions | 12 Months Ended |
--- | --- | ---
Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Nov. 09, 2023 $ / shares
Supplemental Cash Flow Information [Line Items] |  |  |  |
Interest payments | $ 157 | $ 122 | $ 137 |
Foreign income and withholding taxes | 219 | 141 | 124 |
Net gain on divestiture | 41 | 0 | 0 |
Dividends paid | $ 340 | 318 | $ 265 |
Noncash investing activities related to acquisition of music publishing rights and music catalogs |  | $ 125 |  |
Class A Common Stock | Subsequent Event |  |  |  |
Supplemental Cash Flow Information [Line Items] |  |  |  |
Dividends payable, amount per share (in dollars per share) | $ / shares |  |  |  | $ 0.17
Common Class B | Subsequent Event |  |  |  |
Supplemental Cash Flow Information [Line Items] |  |  |  |
Dividends payable, amount per share (in dollars per share) | $ / shares |  |  |  | $ 0.17
Revolving Credit Facility | Line of Credit |  |  |  |
Supplemental Cash Flow Information [Line Items] |  |  |  |
Debt instrument, covenant, total indebtedness to EBITDA ratio | 3.50 |  |  |

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