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Common Stock (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended
--- | --- | ---
Apr. 30, 2022 | Mar. 31, 2022 | Mar. 31, 2021
Class of Stock [Line Items] |  |  |
Treasury stock acquired (shares) |  | 5,739,096 | 6,150,696
Value of treasury stock shares repurchased/withheld |  | $ 3,333 | $ 3,652
Remaining authorized repurchase amount |  | $ 1,200 |
Share buybacks |  |  |
Class of Stock [Line Items] |  |  |
Treasury stock acquired (shares) |  | 5,325,594 | 5,556,318
Value of treasury stock shares repurchased/withheld |  | $ 3,172 | $ 3,474
Share buybacks | Liberty Broadband |  |  |
Class of Stock [Line Items] |  |  |
Treasury stock acquired (shares) |  | 970,241 | 834,576
Value of treasury stock shares repurchased/withheld |  | $ 602 | $ 518
Share buybacks | Liberty Broadband | Subsequent Event |  |  |
Class of Stock [Line Items] |  |  |
Treasury stock acquired (shares) | 900,000 |  |
Value of treasury stock shares repurchased/withheld | $ 491 |  |
Income tax withholding |  |  |
Class of Stock [Line Items] |  |  |
Treasury stock acquired (shares) |  | 264,845 | 284,563
Value of treasury stock shares repurchased/withheld |  | $ 161 | $ 178
Exercise cost |  |  |
Class of Stock [Line Items] |  |  |
Treasury stock acquired (shares) |  | 148,657 | 309,815

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