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Commitments and Contingencies, additional lease information (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Commitments And Contingencies Disclosure |  |  |
Rent expense, noncancellable long-term operating lease | $ 177.0 tds_OperatingLeasesRentExpenseNoncancellableLongTermLeases | $ 187.4 tds_OperatingLeasesRentExpenseNoncancellableLongTermLeases | $ 204.1 tds_OperatingLeasesRentExpenseNoncancellableLongTermLeases
Rent expense, cancellable short-term operating lease | $ 8.8 tds_OperatingLeasesRentExpenseCancellableShortTermLeases | $ 12.5 tds_OperatingLeasesRentExpenseCancellableShortTermLeases | $ 10.4 tds_OperatingLeasesRentExpenseCancellableShortTermLeases

X
- Definition This element represents the short term portion of payments that the lessee is not obligated or required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes. + References No definition available. + Details
Name: | tds_OperatingLeasesRentExpenseCancellableShortTermLeases
Namespace Prefix: | tds_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This element represents the long term portion of payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes. + References No definition available. + Details
Name: | tds_OperatingLeasesRentExpenseNoncancellableLongTermLeases
Namespace Prefix: | tds_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration