Quarterly report [Sections 13 or 15(d)]

Benefit Plans - Sirius XM Holdings Awards (Details)

v3.25.1
Benefit Plans - Sirius XM Holdings Awards (Details) - USD ($)
shares in Millions, $ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Employees and Non Employee Stock Option      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options exercised in period, intrinsic value   $ 1  
Exercise of stock options and vesting of restricted stock units (in shares)   1  
Restricted Stock Units (RSUs) and Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted stock units vested, intrinsic value $ 24 $ 34  
Granted (in shares) 9    
Restricted stock units granted (in shares) 1    
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Exercise of stock options and vesting of restricted stock units (in shares) 1    
Performance-based Share Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) 1    
Restricted Stock Units Rsu And Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation costs $ 546   $ 402
Weighted-average service period (in years) 2 years 10 months 24 days