Reportable Segments (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Reportable Segments Details [Abstract]
Impairment charges	$ 0	$ 0	$ 0	$ (11,000,000)
Interest expense	(93,000,000)	(104,000,000)	(188,000,000)	(214,000,000)
Interest income	2,000,000	1,000,000	4,000,000	3,000,000
Gain on early extinguishment of debt	0	0	0	25,000,000
Other items, net	(7,000,000)	3,000,000	(9,000,000)	8,000,000
Earnings (loss) from continuing operations before income taxes and equity in earnings (loss) of investee companies	740,000,000	692,000,000	1,445,000,000	1,291,000,000
(Provision) benefit for income taxes	(256,000,000)	(228,000,000)	(490,000,000)	(429,000,000)
Equity in loss of investee companies, net of tax	(8,000,000)	(12,000,000)	(16,000,000)	(16,000,000)
Net earnings (loss) from continuing operations	476,000,000	452,000,000	939,000,000	846,000,000
Net loss from discontinued operations, net of tax (Note 4)	(4,000,000)	(25,000,000)	(24,000,000)	(56,000,000)
Net earnings	472,000,000	427,000,000	915,000,000	790,000,000
Reportable Segments [Line Items]
Revenues	3,699,000,000	3,329,000,000	7,739,000,000	7,125,000,000
Intercompany Revenues	49,000,000	51,000,000	116,000,000	111,000,000
Segment OIBDA	952,000,000	911,000,000	1,868,000,000	1,718,000,000
Operating Income (Loss)	838,000,000	792,000,000	1,638,000,000	1,469,000,000
Depreciation and amortization	114,000,000	119,000,000	230,000,000	238,000,000
Stock-based compensation	49,000,000	39,000,000	109,000,000	80,000,000
Capital expenditures	49,000,000	49,000,000	83,000,000	84,000,000
Assets	25,693,000,000		25,693,000,000		26,466,000,000
Entertainment Segment [Member]
Reportable Segments [Line Items]
Revenues	2,008,000,000	1,707,000,000	4,547,000,000	4,025,000,000
Intercompany Revenues	42,000,000	44,000,000	104,000,000	97,000,000
Segment OIBDA	429,000,000	426,000,000	909,000,000	837,000,000
Operating Income (Loss)	391,000,000	385,000,000	831,000,000	755,000,000
Depreciation and amortization	38,000,000	41,000,000	78,000,000	82,000,000
Stock-based compensation	15,000,000	14,000,000	30,000,000	27,000,000
Capital expenditures	24,000,000	19,000,000	43,000,000	36,000,000
Assets	8,665,000,000		8,665,000,000		9,023,000,000
Cable Networks Segment [Member]
Reportable Segments [Line Items]
Revenues	518,000,000	446,000,000	996,000,000	898,000,000
Segment OIBDA	207,000,000	190,000,000	438,000,000	399,000,000
Operating Income (Loss)	202,000,000	184,000,000	429,000,000	388,000,000
Depreciation and amortization	5,000,000	6,000,000	9,000,000	11,000,000
Stock-based compensation	2,000,000	2,000,000	4,000,000	3,000,000
Capital expenditures	2,000,000	3,000,000	4,000,000	4,000,000
Assets	1,880,000,000		1,880,000,000		1,750,000,000
Publishing Segment [Member]
Reportable Segments [Line Items]
Revenues	189,000,000	189,000,000	360,000,000	365,000,000
Segment OIBDA	21,000,000	9,000,000	33,000,000	19,000,000
Operating Income (Loss)	20,000,000	7,000,000	30,000,000	15,000,000
Depreciation and amortization	1,000,000	2,000,000	3,000,000	4,000,000
Stock-based compensation	1,000,000	0	2,000,000	1,000,000
Capital expenditures	1,000,000	0	1,000,000	0
Assets	959,000,000		959,000,000		1,033,000,000
Local Broadcasting Segment [Member]
Reportable Segments [Line Items]
Revenues	698,000,000	704,000,000	1,336,000,000	1,326,000,000
Intercompany Revenues	4,000,000	5,000,000	7,000,000	9,000,000
Segment OIBDA	255,000,000	248,000,000	454,000,000	419,000,000
Operating Income (Loss)	234,000,000	225,000,000	410,000,000	363,000,000
Depreciation and amortization	21,000,000	23,000,000	44,000,000	45,000,000
Stock-based compensation	7,000,000	6,000,000	14,000,000	12,000,000
Capital expenditures	12,000,000	14,000,000	18,000,000	24,000,000
Assets	9,609,000,000		9,609,000,000		9,614,000,000
Outdoor Americas Segment [Member]
Reportable Segments [Line Items]
Revenues	335,000,000	334,000,000	616,000,000	622,000,000
Intercompany Revenues	3,000,000	2,000,000	5,000,000	5,000,000
Segment OIBDA	107,000,000	103,000,000	181,000,000	179,000,000
Operating Income (Loss)	65,000,000	62,000,000	97,000,000	95,000,000
Depreciation and amortization	42,000,000	41,000,000	84,000,000	84,000,000
Stock-based compensation	1,000,000	2,000,000	3,000,000	3,000,000
Capital expenditures	9,000,000	10,000,000	15,000,000	17,000,000
Assets	3,435,000,000		3,435,000,000		3,542,000,000
Corporate [Member]
Reportable Segments [Line Items]
Segment OIBDA	(67,000,000)	(65,000,000)	(147,000,000)	(135,000,000)
Operating Income (Loss)	(74,000,000)	(71,000,000)	(159,000,000)	(147,000,000)
Depreciation and amortization	7,000,000	6,000,000	12,000,000	12,000,000
Stock-based compensation	23,000,000	15,000,000	56,000,000	34,000,000
Capital expenditures	1,000,000	3,000,000	2,000,000	3,000,000
Assets	683,000,000		683,000,000		1,026,000,000
Discontinued Operations [Member]
Reportable Segments [Line Items]
Assets	462,000,000		462,000,000		478,000,000
Eliminations [Member]
Reportable Segments [Line Items]
Revenues	$ (49,000,000)	$ (51,000,000)	$ (116,000,000)	$ (111,000,000)