Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended			5 Months Ended		5 Months Ended		5 Months Ended		5 Months Ended		5 Months Ended		3 Months Ended	5 Months Ended	3 Months Ended	9 Months Ended	4 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013 Directory services agreements	Dec. 31, 2012 Directory services agreements	Sep. 30, 2013 Client relationships	Dec. 31, 2012 Client relationships	Sep. 30, 2013 Trademarks and domain names	Dec. 31, 2012 Trademarks and domain names	Sep. 30, 2013 Patented technologies	Dec. 31, 2012 Patented technologies	Sep. 30, 2013 Advertising commitment	Dec. 31, 2012 Advertising commitment	Sep. 30, 2013 Super Media, Inc.	Sep. 30, 2013 Super Media, Inc.	Sep. 30, 2013 Dex One	Sep. 30, 2013 Dex One	Apr. 29, 2013 As Previously Reported Directory services agreements	Apr. 29, 2013 As Previously Reported Client relationships	Apr. 29, 2013 As Previously Reported Trademarks and domain names	Apr. 29, 2013 As Previously Reported Patented technologies	Apr. 29, 2013 As Previously Reported Advertising commitment
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 3,166		$ 3,166		$ 2,531	$ 1,475	$ 1,330	$ 1,155	$ 735	$ 440	$ 380	$ 85	$ 75	$ 11	$ 11
Finite-Lived Intangible Assets, Accumulated Amortization	1,175		1,175		698	579	363	413	217	140	84	37	30	6	4
Finite-lived intangible assets, net	1,991		1,991		1,833	896	967	742	518	300	296	48	45	5	7
Estimated Remaining Useful Lives						5 years		4 years		6 years		5 years		3 years						9 years	8 years	8 years	5 years	5 years
Amortization expense	226	87	477	262												66	110
Increase in amortization expense																		73	105
Estimated amortization expense
2013	703		703
2014	768		768
2015	514		514
2016	310		310
2017	141		141
Thereafter	$ 32		$ 32