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Common Stock (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Class of Stock [Line Items]        
Treasury stock acquired (shares) 1,331,653 972,440 2,889,207 3,445,355
Payments for Repurchase of Common Stock $ 361 $ 326 $ 877 $ 1,238
Remaining authorized repurchase amount $ 406   $ 406  
Share buybacks        
Class of Stock [Line Items]        
Treasury stock acquired (shares) 1,321,827 954,330 2,731,424 3,258,749
Payments for Repurchase of Common Stock $ 358 $ 324 $ 830 $ 1,187
Share buybacks | Liberty Broadband        
Class of Stock [Line Items]        
Treasury stock acquired (shares) 130,687 0 343,903 120,149
Payments for Repurchase of Common Stock $ 35 $ 0 $ 116 $ 42
Income tax withholding        
Class of Stock [Line Items]        
Treasury stock acquired (shares) 9,652 4,999 131,559 132,814
Payments for Repurchase of Common Stock $ 3 $ 2 $ 47 $ 51
Exercise cost        
Class of Stock [Line Items]        
Treasury stock acquired (shares) 174 13,111 26,224 53,792
Payments for Repurchase of Common Stock $ 0 $ 0 $ 0 $ 0