CONSOLIDATED BALANCE SHEET (PARENTHETICALS) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
CURRENT ASSETS:
Allowance for doubtful accounts	$ 211	$ 219
INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, accumulated depreciation	36,644	36,164
Customer relationships, accumulated amortization	$ 15,777	$ 15,478
Preferred stock, par value (dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (shares)	250,000,000	250,000,000
Preferred stock, shares issued (shares)	0	0
Preferred stock, shares outstanding (shares)	0	0
Treasury Stock (shares)	2,472,915	0
Class A Common Stock
Common stock, par value (dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (shares)	900,000,000	900,000,000
Common stock, shares issued (shares)	153,048,145	152,651,396
Common stock, shares outstanding (shares)	150,575,230	152,651,396
Class B Common Stock
Common stock, par value (dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (shares)	1,000	1,000
Common stock, shares issued (shares)	1	1
Common stock, shares outstanding (shares)	1	1