Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended			2 Months Ended		2 Months Ended		2 Months Ended		2 Months Ended		2 Months Ended		2 Months Ended	3 Months Ended	6 Months Ended	4 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Jun. 30, 2013 Directory services agreements	Dec. 31, 2012 Directory services agreements	Jun. 30, 2013 Client relationships	Dec. 31, 2012 Client relationships	Jun. 30, 2013 Trademarks and domain names	Dec. 31, 2012 Trademarks and domain names	Jun. 30, 2013 Patented technologies	Dec. 31, 2012 Patented technologies	Jun. 30, 2013 Advertising commitment	Dec. 31, 2012 Advertising commitment	Jun. 30, 2013 Super Media, Inc.	Jun. 30, 2013 Dex One	Jun. 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	949		949		698	480	363	315	217	114	84	35	30	5	4
Finite-lived intangible assets, net	2,217		2,217		1,833	995	967	840	518	326	296	50	45	6	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	176	87	251	175												44
Increase in amortization expense																	45	32
Estimated amortization expense
2013	703		703
2014	768		768
2015	514		514
2016	310		310
2017	141		141
2018	$ 32		$ 32