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Goodwill - Narrative (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 USD ($) | Sep. 30, 2024 USD ($) reportingUnit | Dec. 31, 2023 USD ($)
Business Acquisition [Line Items] |  |  |
Number of reporting units | reportingUnit |  | 2 |
Goodwill, impairment loss | $ 2,819,000,000 |  |
Accumulated impairment of goodwill since the merger | 3,775,000,000 | $ 3,775,000,000 |
Goodwill | 12,390,000,000 | 12,390,000,000 | $ 15,209,000,000
Sirius XM |  |  |
Business Acquisition [Line Items] |  |  |
Goodwill | 11,431,000,000 | 11,431,000,000 | 14,250,000,000
Pandora and Off-platform |  |  |
Business Acquisition [Line Items] |  |  |
Accumulated impairment of goodwill since the merger | 956,000,000 | 956,000,000 |
Goodwill | $ 959,000,000 | $ 959,000,000 | $ 959,000,000

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