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Goodwill - Narrative (Details) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2021 USD ($) reporting_unit | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Apr. 23, 2021 USD ($) | Oct. 16, 2020 USD ($) | Dec. 31, 2008 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |
Number of reporting units | reporting_unit | 2 |  |  |  |  |
Goodwill | $ 3,151,000,000 | $ 3,122,000,000 | $ 3,843,000,000 |  |  |
Goodwill, impairment loss | 0 | 956,000,000 | 0 |  |  |
Accumulated impairment of goodwill since the merger | 5,722,000,000 |  |  |  |  |
Stitcher |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill |  |  |  |  | $ 224,000,000 |
Goodwill, purchase accounting adjustments | 6,000,000 |  |  |  |  |
Series of Individually Immaterial Business Acquisitions |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill |  |  |  | $ 23,000,000 |  |
Sirius XM |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill | 2,290,000,000 | 2,290,000,000 | 2,290,000,000 |  |  |
Goodwill, impairment loss |  | 0 |  |  |  |
Accumulated impairment of goodwill since the merger |  |  |  |  |  | $ 4,766,000,000
Pandora |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill | $ 861,000,000 | 832,000,000 | $ 1,553,000,000 |  |  |
Goodwill, impairment loss |  | $ 956,000,000 |  |  |  |

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