Intangible Assets (Indefinite-Lived Intangible Assets) (Details) (USD $)	3 Months Ended
	Mar. 31, 2012
Indefinite-lived Intangible Assets by Major Class [Line Items]
Indefinite-lived Intangible Assets, Period Start	$ 20,453,000,000
Indefinite-lived Intangible Assets, Period End	20,540,000,000
Goodwill, beginning balance	359,000,000
Goodwill, ending balance	359,000,000
Total indefinite-lived intangible assets including FCC licenses, Trademarks, Goodwill, beginning balance	20,812,000,000
Indefinite lived intangible assets period increase decrease	87,000,000
Total indefinite-lived intangible assets including FCC licenses, Trademarks, Goodwill, ending balance	20,899,000,000
FCC Licenses [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Indefinite-lived Intangible Assets, Period Start	20,044,000,000
Indefinite-lived Intangible Assets, Period Increase (Decrease)	87,000,000
Indefinite-lived Intangible Assets, Period End	20,131,000,000
Trademarks [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Indefinite-lived Intangible Assets, Period Start	409,000,000
Indefinite-lived Intangible Assets, Period Increase (Decrease)	0
Indefinite-lived Intangible Assets, Period End	409,000,000
Goodwill [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Goodwill, beginning balance	359,000,000
Goodwill Net Additions/(reductions)	0
Goodwill, ending balance	$ 359,000,000