GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS: (Details 5) (Cable Television Goodwill [Member], USD $) In Millions, unless otherwise specified	Oct. 01, 2012	Dec. 31, 2011
Pre-tax impairment charge (in millions)	$ 0	$ 0
Discount Rate	10.75%	11.50%
Year 1 Revenue Growth Rate	11.20%	13.90%
Minimum [Member]
Long-term Revenue Growth Rate Range	2.50%	2.70%
Operating Profit Margin Range	33.30%	29.90%
Maximum [Member]
Long-term Revenue Growth Rate Range	12.20%	13.90%
Operating Profit Margin Range	36.20%	42.20%