CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 44	$ 7
Restricted cash and cash equivalents	0	27
Accounts receivable, less allowance for doubtful accounts of $15 and $14, respectively	223	234
Prepaid expenses and other current assets	66	62
Total current assets	333	330
INVESTMENT IN CABLE PROPERTIES:
Property, plant and equipment, net of accumulated depreciation of $4,303 and $3,563, respectively	7,313	7,206
Franchises	5,287	5,287
Customer relationships, net	1,294	1,424
Goodwill	953	953
Total investment in cable properties, net	14,847	14,870
OTHER NONCURRENT ASSETS	409	396
Total assets	15,589	15,596
CURRENT LIABILITIES:
Accounts payable and accrued liabilities	1,280	1,224
Total current liabilities	1,280	1,224
LONG-TERM DEBT	12,812	12,808
DEFERRED INCOME TAXES	1,374	1,321
OTHER LONG-TERM LIABILITIES	62	94
SHAREHOLDERS' EQUITY:
Preferred stock; $.001 par value; 250 million shares authorized; no shares issued and outstanding	0	0
Additional paid-in capital	1,657	1,616
Accumulated deficit	(1,530)	(1,392)
Treasury stock at cost; 106,100 and 0 shares, respectively	(10)	0
Accumulated other comprehensive loss	(56)	(75)
Total shareholders' equity	61	149
Total liabilities and shareholders' equity	15,589	15,596
Class A Common Stock [Member]
SHAREHOLDERS' EQUITY:
Common stock	0	0
Class B Common Stock [Member]
SHAREHOLDERS' EQUITY:
Common stock	$ 0	$ 0