Financial Data by Business Segment (Tables)

3 Months Ended

Mar. 31, 2013

Financial Data By Business Segment [Abstract]

Financial Data by Business Segment

		Three Months Ended March 31, 2013
(in millions)			Revenue(d)		Operating Income (Loss) Before Depreciation and Amortization(e)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures
Cable Communications(a)		$	10,217	$	4,219	$	1,608	$	2,611	$	1,094
NBCUniversal
	Cable Networks		2,225		859		184		675		24
	Broadcast Television		1,517		(35)		25		(60)		8
	Filmed Entertainment		1,216		69		4		65		2
	Theme Parks		462		173		72		101		138
	Headquarters and Other(b)		9		(112)		59		(171)		91
	Eliminations(c)		(89)		(1)		-		(1)		-
NBCUniversal			5,340		953		344		609		263
Corporate and Other			162		(83)		15		(98)		4
Eliminations(c)			(409)		(55)		-		(55)		-
Comcast Consolidated		$	15,310	$	5,034	$	1,967	$	3,067	$	1,361
		Three Months Ended March 31, 2012
(in millions)			Revenue(d)		Operating Income (Loss) Before Depreciation and Amortization(e)		Depreciation and Amortization		Operating Income (Loss)		Capital Expenditures
Cable Communications(a)		$	9,599	$	3,955	$	1,602	$	2,353	$	1,056
NBCUniversal
	Cable Networks		2,128		809		176		633		9
	Broadcast Television		1,861		(14)		23		(37)		8
	Filmed Entertainment		1,192		6		4		2		1
	Theme Parks		412		157		62		95		47
	Headquarters and Other(b)		12		(146)		48		(194)		46
	Eliminations(c)		(133)		1		(1)		2		-
NBCUniversal			5,472		813		312		501		111
Corporate and Other			174		(64)		14		(78)		7
Eliminations(c)			(367)		(16)		2		(18)		-
Comcast Consolidated		$	14,878	$	4,688	$	1,930	$	2,758	$	1,174

Cable Segment Revenue Sources

		Three Months Ended
		March 31
		2013		2012
Residential:
	Video	50.0	%	51.4	%
	High-speed Internet	24.7	%	24.2	%
	Voice	8.8	%	9.1	%
Business services		7.2	%	6.1	%
Advertising		4.8	%	5.0	%
Other		4.5	%	4.2	%
Total		100	%	100	%