GOODWILL AND RADIO BROADCASTING LICENSES (Details 1) (Radio Marketing Units [Member], USD $) In Millions, unless otherwise specified	Oct. 31, 2014		Mar. 31, 2014
Schedule Of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Pre-tax impairment charge (in millions)	$ 0	[1]	$ 0	[2]
Discount Rate	9.50%	[1]	10.00%	[2]
Year 1 Market Revenue Growth Rate Range			2.00%	[2]
Long-term Market Revenue Growth Rate Range (Years 6 - 10)			1.50%	[2]
Mature Market Share Range			7.90%	[2]
Operating Profit Margin Range			28.40%	[2]
Minimum [Member]
Schedule Of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Year 1 Market Revenue Growth Rate Range	0.30%	[1]
Long-term Market Revenue Growth Rate Range (Years 6 - 10)	1.00%	[1]
Mature Market Share Range	7.20%	[1]
Operating Profit Margin Range	26.40%	[1]
Maximum [Member]
Schedule Of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Year 1 Market Revenue Growth Rate Range	1.00%	[1]
Long-term Market Revenue Growth Rate Range (Years 6 - 10)	2.00%	[1]
Mature Market Share Range	19.50%	[1]
Operating Profit Margin Range	52.20%	[1]

[1] Reflects the key assumptions for testing only those radio markets with remaining goodwill.

[2] Reflects changes only to the key assumptions used in the interim testing for certain units of accounting.