Quarterly Financial Information (Unaudited) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	0 Months Ended	3 Months Ended								12 Months Ended			3 Months Ended			8 Months Ended	3 Months Ended							12 Months Ended	3 Months Ended							12 Months Ended
	Apr. 30, 2013	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Super Media, Inc.	Sep. 30, 2013 Super Media, Inc.	Jun. 30, 2013 Super Media, Inc.	Dec. 31, 2013 Super Media, Inc.	Sep. 30, 2013 As Reported	Jun. 30, 2013 As Reported	Mar. 31, 2013 As Reported	Dec. 31, 2012 As Reported	Sep. 30, 2012 As Reported	Jun. 30, 2012 As Reported	Mar. 31, 2012 As Reported	Dec. 31, 2012 As Reported	Sep. 30, 2013 Correction	Jun. 30, 2013 Correction	Mar. 31, 2013 Correction	Dec. 31, 2012 Correction	Sep. 30, 2012 Correction	Jun. 30, 2012 Correction	Mar. 31, 2012 Correction	Dec. 31, 2012 Correction
Condensed Income Statements, Captions [Line Items]
Operating revenue		$ 429	$ 392	$ 335	$ 288	$ 299	$ 314	$ 327	$ 338	$ 1,444	$ 1,278	$ 1,481	$ 177	$ 132	$ 61	$ 370	$ 397	$ 345	$ 288	$ 301	$ 320	$ 335	$ 344	$ 1,300	$ (5)	$ (10)	$ 0	$ (2)	$ (6)	$ (8)	$ (6)	$ (22)
Operating income (loss)		(576)	(147)	(146)	19	16	22	26	39	(850)	103	(430)	(139)	(70)	(87)	(296)	(142)	(136)	19	18	28	34	45	125	(5)	(10)	0	(2)	(6)	(8)	(6)	(22)
Provision (benefit) for income taxes			(111)	(157)	(1)	9	(6)	4	(1)	(376)	6	(125)					(109)	(148)	(1)	10	(6)	4	(1)	7	(2)	(9)	0	(1)	0	0	0	(1)
Net income (loss)		(556)	(135)	(69)	(59)	(37)	(19)	45	52	(819)	41	(519)	(154)	(60)	(93)	(307)	(132)	(68)	(59)	(36)	(13)	53	58	62	(3)	(1)	0	(1)	(6)	(8)	(6)	(21)
Comprehensive income (loss)		(536)	(139)	(76)	(58)	(53)	(19)	45	52	(809)	25	(541)					(136)	(75)	(58)	(52)	(13)	53	58	46	(3)	(1)	0	(1)	(6)	(8)	(6)	(21)
Basic and diluted earnings (loss) per common share (in dollars per share)		$ (32.29)	$ (7.85)	$ (4.58)	$ (5.84)	$ (3.56)	$ (1.82)	$ 4.43	$ 5.09	$ (54.89)	$ 4.09	$ (51.75)					$ (7.66)	$ (4.56)	$ (5.83)	$ (3.48)	$ (1.25)	$ 5.23	$ 5.73	$ 6.16	$ (0.19)	$ (0.02)	$ (0.01)	$ (0.08)	$ (0.57)	$ (0.80)	$ (0.64)	$ (2.08)
Impairment charge		458								458	0	801
Goodwill impairment		74								74
Impairment charge of intangible assets		384								384
Gains on early extinguishment of debt	$ 428	$ 9						$ 71	$ 69	$ 9	$ 140	$ 0