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Basis of Presentation and Summary of Significant Accounting Policies (Details 3) (USD $) In Millions, unless otherwise specified | 9 Months Ended | 12 Months Ended | 3 Months Ended
--- | --- | --- | ---
Dec. 31, 2011 | Dec. 31, 2013 segment | Dec. 31, 2012 | Dec. 31, 2013 Minimum | Dec. 31, 2013 Maximum | Dec. 31, 2013 Customer relationships | Dec. 31, 2013 Capitalized software Maximum | Mar. 31, 2011 Predecessor
Revenue Recognition |  |  |  |  |  |  |  |
Customer relationship period over which revenue is recognized |  |  |  | 18 months | 10 years |  |  |
Term of IRUs |  | 20 years |  |  |  |  |  |
Affiliates Transactions |  |  |  |  |  |  |  |
Noncash dividends recognized | $ 28 | $ 0 | $ 0 |  |  |  |  | $ 0
Advertising Costs |  |  |  |  |  |  |  |
Advertising expense | $ 174 | $ 88 | $ 90 |  |  |  |  | $ 65
Accounts Receivable and Allowance for Doubtful Accounts |  |  |  |  |  |  |  |
Period of accounts past due |  |  |  | 30 days |  |  |  |
Goodwill, Customer Relationships and Other Intangible Assets |  |  |  |  |  |  |  |
Weighted Average of Remaining Lives |  |  |  |  |  | 10 years | 7 years |
Number of reporting units (segment) |  | 1 |  |  |  |  |  |

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- Definition Represents the amount of non-cash dividends resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with CenturyLink, Inc. the direct parent company of the entity. + References No definition available. + Details
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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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