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CONSOLIDATED BALANCE SHEET (PARENTHETICALS) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
CURRENT ASSETS:    
Accounts receivable, allowance for doubtful accounts $ 204 $ 268
INVESTMENT IN CABLE PROPERTIES:    
Property, plant and equipment, accumulated depreciation $ 39,409 $ 37,751
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 250,000,000 250,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Class A Common Stock    
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 900,000,000 900,000,000
Common stock, shares issued (in shares) 141,946,426 145,225,458
Common stock, shares outstanding (in shares) 141,946,426 145,225,458
Class B Common Stock    
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 1,000 1,000
Common stock, shares issued (in shares) 1 1
Common stock, shares outstanding (in shares) 1 1