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v3.25.3

Related Party Transactions (Details) € in Millions, £ in Millions, $ in Millions |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Apr. 13, 2022 EUR (€) shares | Jan. 01, 2015 GBP (£) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Jun. 26, 2023
Related Party Transaction [Line Items] |  |  |  |  |  |
Remaining lease term |  |  | 6 years | 6 years |  |
Extended lease term |  |  | 10 years |  |  |
Revenue |  |  | $ 6,707 | $ 6,426 | $ 6,037 |
I2PO |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Business acquisition, number of shares acquired (in shares) | shares | 900,000 |  |  |  |  |
Final purchase price | € | € 9 |  |  |  |  |
Fair value of equity interests |  |  | 7 | 8 |  |
Warner and Chappell Music Limited and WMG Acquisition Limited |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Extended lease term |  | 5 years |  |  |  | 5 years
Payments for rent | £ |  | £ 3 |  |  |  |
Deezer | Streaming Service License |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Revenue |  |  | 45 | 41 | 40 |
Deezer | PEDL And Latin America Licenses |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Revenue |  |  | 2 | $ 2 | $ 2 |
Building |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Related party transactions, annual rent payments |  |  | $ 15 |  |  |
Remaining lease term |  |  | 5 years |  |  |
Extended lease term |  |  | 10 years |  |  |

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