DUKENET ACQUISITION (Details) (Subsequent Event [Member], USD $) In Millions, unless otherwise specified	9 Months Ended
Oct. 04, 2013
Subsequent Event [Member]
DukeNet Acquisition
DukeNet acquisition price including repayment of debt	$ 600

Acquisition price per an acquisition agreement entered into for which the acquisition has not closed.

No definition available.

Name:	twc_AcquisitionAgreementAcquisitionPrice
Namespace Prefix:	twc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration