Quarterly report pursuant to Section 13 or 15(d)

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

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Benefit Plans - Sirius XM Holdings Inc. Deferred Compensation Plan (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Retirement Benefits [Abstract]          
Net contributions     $ 1    
Contributions (withdrawals) $ (1) $ (1)   $ (1)  
Fair value of investment assets related to deferred compensation plan 54   54   $ 47
Gains (losses) on investments $ 3 $ (6) $ 5 $ (9)