TWC SHAREHOLDERS' EQUITY (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		7 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Jul. 24, 2013	Jul. 25, 2013	Sep. 30, 2013	Sep. 30, 2012
Changes in Common Stock
Common stock shares outstanding at beginning of period (in shares)			297.7	297.7	297.7	315.0
Shares issued under equity-based compensation plan (in shares)					3.8	4.4
Shares repurchased and retired (in shares)					(18.6)	(16.1)
Common stock shares outstanding at end of period (in shares)	282.9	303.3			282.9	303.3
Common Stock Repurchase Program
Value of common stock authorized to be repurchased				$ 4,000
Remaining value of common stock authorized to be repurchased			775		3,614
Value of common stock repurchased and retired					1,844	1,293
Shares repurchased and retired that settled in subsequent period					0.2
Value of common stock repurchased and retired that settled in subsequent period					21
Accumulated Other Comprehensive Loss, Net
Balance at beginning of period			(663)	(663)	(663)	(559)
Other comprehensive income (loss) before reclassifications, net of tax					105	30
Amounts reclassified from accumulated other comprehensive loss, net of tax					42	(12)
Other comprehensive income	87	53			147	18
Balance at end of period	(516)	(541)			(516)	(541)
Accumulated Unrealized Losses on Pension Benefit Obligation [Member]
Accumulated Other Comprehensive Loss, Net
Balance at beginning of period			(708)	(708)	(708)	(541)
Other comprehensive income (loss) before reclassifications, net of tax					21	(17)
Amounts reclassified from accumulated other comprehensive loss, before tax					56	44
Income tax provision (benefit)					(21)	(18)
Amounts reclassified from accumulated other comprehensive loss, net of tax					35	26
Other comprehensive income					56	9
Balance at end of period	(652)	(532)			(652)	(532)
Accumulated Deferred Gains (Losses) on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Loss, Net
Balance at beginning of period			45	45	45	(18)
Other comprehensive income (loss) before reclassifications, net of tax					84	47
Amounts reclassified from accumulated other comprehensive loss, before tax					9	(64)
Income tax provision (benefit)					(2)	26
Amounts reclassified from accumulated other comprehensive loss, net of tax					7	(38)
Other comprehensive income					91	9
Balance at end of period	$ 136	$ (9)			$ 136	$ (9)