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Income Taxes (Details) - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Components of Income Tax Benefit (Expense) and Effective Tax Rate Reconciliation:      
Federal income taxes $ (12,000,000) $ 7,000,000 $ (6,000,000)
State income taxes (230,000,000) (168,000,000) (113,000,000)
Current income tax expense (242,000,000) (161,000,000) (119,000,000)
Federal income taxes (1,049,000,000) (536,000,000) (358,000,000)
State income taxes 223,000,000 71,000,000 38,000,000
Deferred income tax expense (826,000,000) (465,000,000) (320,000,000)
Income tax expense $ (1,068,000,000) (626,000,000) (439,000,000)
Federal income tax rate (percentage) 21.00%    
Statutory federal income taxes $ (1,341,000,000) (903,000,000) (510,000,000)
Statutory state income taxes, net (193,000,000) (122,000,000) (57,000,000)
Change in uncertain tax positions (79,000,000) (57,000,000) (64,000,000)
Nondeductible expenses (27,000,000) (15,000,000) (24,000,000)
Net income attributable to noncontrolling interest 163,000,000 112,000,000 80,000,000
Excess stock compensation 163,000,000 290,000,000 63,000,000
Federal tax credits 46,000,000 35,000,000 46,000,000
Tax rate changes 191,000,000 33,000,000 15,000,000
Other 9,000,000 1,000,000 12,000,000
Components of Deferred Tax Assets (Liabilities):      
Loss carryforwards 325,000,000 1,344,000,000  
Accrued and other 612,000,000 581,000,000  
Total gross deferred tax assets 937,000,000 1,925,000,000  
Valuation Allowance:      
Less: valuation allowance (36,000,000) (32,000,000)  
Deferred tax assets 901,000,000 1,893,000,000  
Investment in partnership (19,986,000,000) (19,996,000,000)  
Accrued and other (11,000,000) (5,000,000)  
Deferred tax liabilities (19,997,000,000) (20,001,000,000)  
Net deferred tax liabilities (19,096,000,000) (18,108,000,000)  
Net deferred tax liabilities related to certain indirect subsidiaries that file separate income tax returns 57,000,000 53,000,000  
Net Operating Loss Carryforwards:      
Federal tax loss carryforwards subject to 382 and other restrictions 714,000,000    
Net operating loss carryforwards for which the use is limited $ 229,000,000    
Tax Receivable Agreement:      
A/N’s share of the tax benefit realized by Charter pursuant to the Tax Receivable Agreement (percentage) 50.00%    
Minimum estimated obligation due to A/N under the Tax Receivable Agreement $ 0    
Maximum estimated obligation due to A/N under the Tax Receivable Agreement 3,500,000,000    
Uncertain Tax Positions:      
Unrecognized tax benefits that would impact the effective tax rate 318,000,000    
Decrease in unrecognized tax benefits that is reasonably possible in 2022 35,000,000    
Unrecognized tax benefits, beginning balance 298,000,000 230,000,000  
Additions on prior year tax positions   28,000,000  
Activity on prior year tax positions (5,000,000)    
Additions on current year tax positions 94,000,000 51,000,000  
Reductions on settlements and expirations with taxing authorities (10,000,000) (11,000,000)  
Unrecognized tax benefits, ending balance 377,000,000 298,000,000 $ 230,000,000
Interest and penalties accrued on uncertain income tax positions 76,000,000 63,000,000  
Operating Loss Carryforwards      
Valuation Allowance:      
Less: valuation allowance (13,000,000) (9,000,000)  
State Operating Loss Carryforwards and Other      
Valuation Allowance:      
Less: valuation allowance (23,000,000) $ (23,000,000)  
Internal Revenue Service (IRS)      
Net Operating Loss Carryforwards:      
Net operating loss carryforwards 714,000,000    
Deferred tax assets, operating loss carryforwards subject to expiration 150,000,000    
State and Local Jurisdiction      
Net Operating Loss Carryforwards:      
Deferred tax assets, operating loss carryforwards subject to expiration $ 175,000,000