The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Section 50

-Paragraph 2

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Section 50

-Paragraph 2

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Section 50

-Paragraph 2

-Subparagraph (a)(3)

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Intangible Assets (Details) (USD $)	3 Months Ended		9 Months Ended													3 Months Ended		9 Months Ended		4 Months Ended
Intangible Assets (Details) (USD $)	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 Directory services agreements	Dec. 31, 2013 Directory services agreements	Sep. 30, 2014 Client relationships	Dec. 31, 2013 Client relationships	Sep. 30, 2014 Trademarks and domain names	Dec. 31, 2013 Trademarks and domain names	Sep. 30, 2014 Patented technologies	Dec. 31, 2013 Patented technologies	Sep. 30, 2014 Advertising commitment	Dec. 31, 2013 Advertising commitment	Sep. 30, 2014 Amortization of intangible assets	Sep. 30, 2013 Amortization of intangible assets	Sep. 30, 2014 Amortization of intangible assets	Sep. 30, 2013 Amortization of intangible assets	Apr. 30, 2013 Super Media, Inc.	Apr. 30, 2013 Super Media, Inc. Amortization of intangible assets
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 1,865,000,000		$ 1,865,000,000		$ 1,865,000,000	$ 666,000,000	$ 666,000,000	$ 924,000,000	$ 924,000,000	$ 222,000,000	$ 222,000,000	$ 42,000,000	$ 42,000,000	$ 11,000,000	$ 11,000,000
Finite-Lived intangible assets, accumulated amortization	924,000,000		924,000,000		484,000,000	254,000,000	97,000,000	574,000,000	348,000,000	75,000,000	29,000,000	13,000,000	4,000,000	8,000,000	6,000,000
Finite-lived intangible assets, net	941,000,000		941,000,000		1,381,000,000	412,000,000	569,000,000	350,000,000	576,000,000	147,000,000	193,000,000	29,000,000	38,000,000	3,000,000	5,000,000
Depreciation and amortization	161,000,000	242,000,000	483,000,000	524,000,000												147,000,000	226,000,000	440,000,000	477,000,000	0	0
Estimated amortization expense
2014 estimated amortization expense	587,000,000		587,000,000
2015 estimated amortization expense	373,000,000		373,000,000
2016 estimated amortization expense	237,000,000		237,000,000
2017 estimated amortization expense	103,000,000		103,000,000
2018 estimated amortization expense	$ 81,000,000		$ 81,000,000