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Acquisition of 300 Entertainment - Preliminary Purchase Price Allocation (Details) - USD ($) $ in Millions | Sep. 30, 2022 | Dec. 16, 2021 | Sep. 30, 2021 | Sep. 30, 2020
--- | --- | --- | --- | ---
Business Acquisition [Line Items] |  |  |  |
Goodwill | $ 1,920 |  | $ 1,830 | $ 1,831
300 Entertainment |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash and equivalents |  | $ 2 |  |
Accounts receivable, net |  | 3 |  |
Royalty advances |  | 14 |  |
Property, plant and equipment, net |  | 1 |  |
Operating lease right-of-use assets, net |  | 3 |  |
Goodwill |  | 135 |  |
Intangible assets subject to amortization, net |  | 260 |  |
Other assets |  | 1 |  |
Accounts payable |  | (5) |  |
Accrued royalties |  | (16) |  |
Accrued liabilities |  | (1) |  |
Operating lease liabilities, noncurrent |  | (3) |  |
Total purchase price allocated |  | 394 |  |
300 Entertainment | Recorded music catalog |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets subject to amortization, net |  | 154 |  |
300 Entertainment | Artist and songwriter contracts |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets subject to amortization, net |  | 91 |  |
300 Entertainment | Trademarks |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets subject to amortization, net |  | 12 |  |
300 Entertainment | Music publishing copyrights |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets subject to amortization, net |  | $ 3 |  |

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