Common Stock (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Common Stock:
Purchase of treasury stock, value	$ 3,215	$ 10,277	$ 15,431
Remaining value of Class A common stock shares authorized to be repurchased	$ 170
Roll Forward of Common Shares:
Exercise of stock options	563,000	552,000	1,568,000
Purchase of treasury stock	(8,358,134)	(21,240,774)	(23,227,642)
Share buybacks
Common Stock:
Purchase of treasury stock, value	$ 3,127	$ 10,095	$ 15,038
Roll Forward of Common Shares:
Purchase of treasury stock	(7,879,962)	(20,628,464)	(22,015,125)
Share buybacks | Liberty Broadband [Member]
Common Stock:
Purchase of treasury stock, value	$ 394	$ 3,034
Roll Forward of Common Shares:
Purchase of treasury stock	(950,721)	(6,168,174)
Income tax withholding
Common Stock:
Purchase of treasury stock, value	$ 88	$ 182	$ 393
Roll Forward of Common Shares:
Purchase of treasury stock	(220,281)	(310,391)	(586,008)
Exercise cost
Roll Forward of Common Shares:
Purchase of treasury stock	(257,891)	(301,919)	(626,509)
Class A Common Stock
Roll Forward of Common Shares:
Shares outstanding, beginning of period (in shares)	152,651,396	172,741,236	193,730,992
Exercise of stock options	563,297	552,442	1,568,488
Restricted stock issuances, net of cancellations	10,609	6,845	4,627
Restricted stock unit vesting	358,290	591,647	664,771
Purchase of treasury stock	(8,358,134)	(21,240,774)	(23,227,642)
Shares outstanding, end of period (in shares)	145,225,458	152,651,396	172,741,236
Class B Common Stock
Roll Forward of Common Shares:
Shares outstanding, beginning of period (in shares)	1	1	1
Exercise of stock options	0	0	0
Restricted stock issuances, net of cancellations	0	0	0
Restricted stock unit vesting	0	0	0
Purchase of treasury stock	0	0	0
Shares outstanding, end of period (in shares)	1	1	1