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Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Basis of Presentation
TDS ownership of U.S. Cellular	84.00%		84.00%
Agent liability	$ 50.2		$ 50.2		$ 75.3
Amounts recorded gross in revenues that are billed to customers and remitted to governmental authorities	$ 34.7	$ 31.1	$ 69.9	$ 62.4

The amount of excise and sales taxes included in sales and revenues, which are then deducted as a cost of sales. Includes excise taxes, which are applied to specific types of transactions or items (such as gasoline or alcohol); and sales, use and value added taxes, which are applied to a broad class of revenue-producing transactions involving a wide range of goods and services.

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