Benefit Plans - 401(k) Savings Plan (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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| Sirius XM Savings Plan | ||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Minimum of employee contributions of pre-tax eligible earnings to company 401(k) savings plan | 1.00% | |||
| Maximum of employee contributions of pre-tax eligible earnings to company 401(k) savings plan | 50.00% | |||
| Percent of Company match of employee's voluntary contributions | 50.00% | |||
| Percent of employee's pre-tax salary | 6.00% | |||
| Maximum annual contributions per employee, percent | 3.00% | |||
| Vesting percentage of employer contributions for each year of employment | 33.33% | |||
| Savings plan, fully vested period | 3 years | |||
| Sirius XM And Pandora Plans | ||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Recognized cost | $ 4 | $ 4 | ||
| Pandora Plan | ||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Recognized cost | $ 17 | $ 12 | ||
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- Definition Employees contribution of their pretax earnings to subsidiary plan maximum. No definition available.
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- Definition Employees contribution of their pretax earnings to subsidiary plan minimum. No definition available.
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- Definition Defined contribution plan, fully vested period. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of cost for defined contribution plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
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- Definition Percentage employer matches of the employee's percentage contribution matched. No definition available.
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- Definition Percentage of employer's matching contributions to a defined contribution plan that vests in a given year. No definition available.
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. No definition available.
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