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Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Basis of Presentation |  |  |  |
Amounts recorded gross in revenues that are billed to customers and remitted to governmental authorities | $ 23.1 | $ 27.4 | $ 74.8 | $ 87.6
TDS |  |  |  |
Basis of Presentation |  |  |  |
TDS ownership of U.S. Cellular | 84.00% |  | 84.00% |
Equipment installment plans |  |  |  |
Basis of Presentation |  |  |  |
Maximum installment period under equipment installment plans |  |  | 24 months |
Equipment installment plans | Customer deposits and deferred revenue |  |  |  |
Basis of Presentation |  |  |  |
Current guarantee liability and imputed interest | 42.2 |  | 42.2 |
Equipment installment plans | Other deferred liabilities and credits |  |  |  |
Basis of Presentation |  |  |  |
Long-term imputed interest | 2.4 |  | 2.4 |
Equipment installment plans | Accounts receivable customers and agents |  |  |  |
Basis of Presentation |  |  |  |
Equipment installment plan receivables | 68.6 |  | 68.6 |
Equipment installment plans | Other assets and deferred charges |  |  |  |
Basis of Presentation |  |  |  |
Equipment installment plan receivables | $ 60.0 |  | $ 60.0 |

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