GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS: (Details 4) (Internet Segment Goodwill [Member], USD $)	Oct. 01, 2014	Oct. 01, 2013	Oct. 01, 2012
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items]
Impairment charge (in millions)	$ 0	$ 0	$ 0
Discount Rate	13.50%	14.50%	13.50%
Year 1 Revenue Growth Rate	11.80%	10.00%	13.80%
Long-term Revenue Growth Rate (Year 10)	2.50%	2.50%	2.50%
Minimum [Member]
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items]
Operating Profit Margin Range	9.10%	5.40%	(4.80%)
Maximum [Member]
Schedule of GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS [Line Items]
Operating Profit Margin Range	25.60%	24.80%	24.20%