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Common Stock (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jul. 31, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Class of Stock [Line Items] |  |  |  |  |  |  |
Treasury stock acquired (shares) |  | 7,370,289 |  | 5,516,312 |  | 13,109,385 | 11,667,008
Value of treasury stock shares repurchased/withheld |  | $ 3,687 | $ 3,333 | $ 3,516 | $ 3,652 | $ 7,020 | $ 7,168
Remaining authorized repurchase amount |  | $ 673 |  |  |  | $ 673 |
Share buybacks |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Treasury stock acquired (shares) |  | 7,264,833 |  | 5,147,257 |  | 12,590,427 | 10,703,575
Value of treasury stock shares repurchased/withheld |  | $ 3,675 |  | $ 3,392 |  | $ 6,847 | $ 6,866
Share buybacks | Liberty Broadband |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Treasury stock acquired (shares) |  | 2,257,443 |  | 1,927,032 |  | 3,227,684 | 2,761,608
Value of treasury stock shares repurchased/withheld |  | $ 1,204 |  | $ 1,244 |  | $ 1,806 | $ 1,762
Share buybacks | Liberty Broadband | Subsequent Event |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Treasury stock acquired (shares) | 800,000 |  |  |  |  |  |
Value of treasury stock shares repurchased/withheld | $ 363 |  |  |  |  |  |
Income tax withholding |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Treasury stock acquired (shares) |  | 24,630 |  | 183,357 |  | 289,475 | 467,920
Value of treasury stock shares repurchased/withheld |  | $ 12 |  | $ 124 |  | $ 173 | $ 302
Exercise cost |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Treasury stock acquired (shares) |  | 80,826 |  | 185,698 |  | 229,483 | 495,513

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