Benefit Plans - Sirius XM Holdings Inc. Deferred Compensation Plan (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | ||
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Mar. 31, 2025 |
Mar. 31, 2024 |
Dec. 31, 2024 |
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| Retirement Benefits [Abstract] | |||
| Contributions to the DCP, net of withdrawals | $ (3) | ||
| Contributions to the DCP | $ 2 | ||
| Fair value of investment assets related to deferred compensation plan | 55 | $ 60 | |
| Gains (losses) on investments | $ (2) | $ 3 | |
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- Definition Deferred Compensation Arrangement with Individual, Contributions by Employer, Net Of Withdrawals No definition available.
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- Definition Deferred Compensation Arrangement with Individual, Gain (Loss) on Investment No definition available.
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- References No definition available.
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- Definition Amount of contributions made by employer into fund established for purposes of making future disbursement to individual in accordance with deferred compensation arrangement. No definition available.
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- Definition Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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