Goodwill and Other Intangible Assets (Details) (USD $)	1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 30, 2012 stations	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross		$ 1,688,000,000		$ 1,688,000,000		$ 1,745,000,000
Accumulated amortization		(1,120,000,000)		(1,120,000,000)		(1,126,000,000)
Finite-lived intangible assets, net		568,000,000		568,000,000		619,000,000
Indefinite-Lived Intangible Assets by Major Class [Line Items]
Total intangible assets, net		6,508,000,000		6,508,000,000		6,526,000,000
Total intangible assets, gross		7,628,000,000		7,628,000,000		7,652,000,000
Amortization expense [Abstract]
Amortization expense		28,000,000	32,000,000	55,000,000	63,000,000
Aggregate annual amortization expense for existing intangible assets subject to amortization for each of the following years [Abstract]
2012		102,000,000		102,000,000
2013		91,000,000		91,000,000
2014		80,000,000		80,000,000
2015		70,000,000		70,000,000
2016		60,000,000		60,000,000
Number of radio stations sold	5
Stations sale, price	50,000,000
Impairment charges		0	0	11,000,000	0
FCC licenses [Member]
Indefinite-Lived Intangible Assets by Major Class [Line Items]
Indefinite-lived intangible assets		5,771,000,000		5,771,000,000		5,738,000,000
Trade names [Member]
Indefinite-Lived Intangible Assets by Major Class [Line Items]
Indefinite-lived intangible assets		169,000,000		169,000,000		169,000,000
Leasehold agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross		887,000,000		887,000,000		882,000,000
Accumulated amortization		(613,000,000)		(613,000,000)		(590,000,000)
Finite-lived intangible assets, net		274,000,000		274,000,000		292,000,000
Franchise agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross		487,000,000		487,000,000		487,000,000
Accumulated amortization		(305,000,000)		(305,000,000)		(292,000,000)
Finite-lived intangible assets, net		182,000,000		182,000,000		195,000,000
Other intangible assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross		314,000,000		314,000,000		376,000,000
Accumulated amortization		(202,000,000)		(202,000,000)		(244,000,000)
Finite-lived intangible assets, net		$ 112,000,000		$ 112,000,000		$ 132,000,000