Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Indefinite-Lived Intangible Assets

Indefinite-Lived Intangible Assets

	December 31, 2012		Net Additions		June 30, 2013
			(in millions)
FCC licenses	$	20,268	$	693	$	20,961
Trademarks	409		—		409
Goodwill	359		9		368
	$	21,036	$	702	$	21,738

Intangible Assets Subject to Amortization

		June 30, 2013							December 31, 2012
	Useful Lives	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Gross Carrying Value		Accumulated Amortization			Net Carrying Value
							(in millions)
Customer relationships	10 years	$	32	$	(1	)	$	31	$	234	$	(230	)	$	4
Other intangible assets
Trademarks	10 to 37 years	1,168		(729		)	439		1,168		(681		)	487
Reacquired rights	9 to 14 years	1,571		(851		)	720		1,571		(785		)	786
Other	9 to 10 years	144		(93		)	51		138		(80		)	58
Total other intangible assets		2,883		(1,673		)	1,210		2,877		(1,546		)	1,331
Total definite-lived intangible assets		$	2,915	$	(1,674	)	$	1,241	$	3,111	$	(1,776	)	$	1,335