Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.21.2
Basis of Presentation (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Nov. 04, 2021
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Basic of presentation            
Amount Of Deficit Reclassified To Retained Earnings   $ 259   $ 259    
Subsequent Event            
Basic of presentation            
Dividend per share declared $ 1.25          
Dividends declared $ 495          
Liberty Media Corporation            
Basic of presentation            
Related Party Transaction, Amounts of Transaction   2 $ 2 $ 8 $ 7  
Liberty Media Corporation | CEO            
Basic of presentation            
CEO compensation allocation percentage       17.00%    
Liberty Media Corporation and Liberty Broadband Corporation            
Basic of presentation            
Tax sharing payable   $ 122   $ 122   $ 129