Discontinued Operations - Carrying amounts of the major classes of assets and liabilities of discontinued operations to the total assets and liabilities of discontinued operations (Details) $ in Millions	Dec. 31, 2024 USD ($)
Assets
Total current assets	$ 315
Liabilities and Equity
Total current liabilities	190
Spin-off | GCI Liberty, Inc.
Assets
Total current assets	315
Property and equipment, net	1,150
Intangible assets not subject to amortization	1,346
Intangible assets subject to amortization, net	411
Other assets, net	165
Total assets	3,387
Liabilities and Equity
Total current liabilities	190
Long-term debt, net	1,066
Deferred income tax liabilities	360
Other liabilities	337
Total liabilities	$ 1,953