SEGMENT INFORMATION, Sources of Revenue for Cable Segment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenue from External Customer [Line Items]
Revenues, net from continuing operations	$ 1,614,771	$ 1,575,586
Cable
Revenue from External Customer [Line Items]
Revenues, net from continuing operations	1,451,538	1,417,148
Cable | Video (including equipment rental, DVR, franchise fees, video-on-demand and pay-per-view)
Revenue from External Customer [Line Items]
Revenues, net from continuing operations	800,968	793,446
Cable | High-speed data
Revenue from External Customer [Line Items]
Revenues, net from continuing operations	362,872	346,899
Cable | Voice
Revenue from External Customer [Line Items]
Revenues, net from continuing operations	231,593	220,122
Cable | Advertising
Revenue from External Customer [Line Items]
Revenues, net from continuing operations	30,777	31,663
Cable | Other (including installation, advertising sales commissions, home shopping, and other products)
Revenue from External Customer [Line Items]
Revenues, net from continuing operations	$ 25,328	$ 25,018