Stock-Based Compensation - SIRIUS XM Holdings (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | |
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Mar. 31, 2022 |
Mar. 31, 2021 |
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| Stock-Based Compensation | ||
| Stock-based compensation expense | $ 55 | $ 63 |
| Total unrecognized compensation cost related to unvested equity awards | $ 54 | |
| Weighted average period of recognition related to unvested equity awards (in years) | 1 year 6 months | |
| Sirius XM Holdings | ||
| Stock-Based Compensation | ||
| Outstanding options | 161 | |
| Exercisable options | 100 | |
| Outstanding WAEP | $ 5.33 | |
| Exercisable WAEP | $ 4.88 | |
| Aggregate intrinsic value, outstanding | $ 210 | |
| Aggregate intrinsic value, exercisable | 176 | |
| Stock-based compensation expense | 45 | $ 51 |
| Total unrecognized compensation cost related to unvested equity awards | $ 463 | |
| Weighted average period of recognition related to unvested equity awards (in years) | 2 years 4 months 24 days | |
| Sirius XM Holdings | RSUs | ||
| Stock-Based Compensation | ||
| RSUs granted | 12 | |
| RSUs GDFV | $ 6.93 | |
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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 not yet recognized for nonvested award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of noncash expense for share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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