Annual report pursuant to Section 13 and 15(d)

Benefit Plans - Sirius XM Holdings Inc. Deferred Compensation Plan (Details)

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Benefit Plans - Sirius XM Holdings Inc. Deferred Compensation Plan (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Retirement Benefits [Abstract]      
Deferred compensation contributions $ 4 $ 8 $ 7
Fair value of investment assets related to deferred compensation plan 56 46  
Gains (losses) on investments $ 5 $ 3 $ 3