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Revision of Prior Period Amounts (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
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Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009 | Dec. 31, 2008
Revision of prior period disclosures, reason for revision | In preparing its Consolidated Statement of Cash Flows for the year ended December 31, 2011, U.S. Cellular discovered certain errors related to the classification of outstanding checks with the right of offset, and related to the classification of Accounts payable - trade for Additions to property, plant and equipment as non-cash investing activities for purposes of preparing the Consolidated Statement of Cash Flows. These errors resulted in the misstatement of Cash and cash equivalents and Accounts payable - trade as of December 31, 2010 and each quarterly period in 2011, and the misstatement of Cash flows from operating activities and Cash flows from investing activities for the years ended December 31, 2010 and 2009 and each of the quarterly periods in 2011 and 2010. In accordance with SEC Staff Accounting Bulletin Nos. 99 and 108 (“SAB 99” and “SAB 108”), U.S. Cellular evaluated these errors and determined that they were immaterial to each of the reporting periods affected and, therefore, amendment of previously filed reports was not required. However, in order to provide consistency in the Consolidated Statement of Cash Flows and as permitted by SAB 108, revisions for these immaterial amounts to previously reported annual amounts are reflected in the financial information herein and will be reflected in future filings containing such financial information as permitted by SAB 108. |  |  |  |  |
Consolidated Balance Sheet |  |  |  |  |  |
Cash and cash equivalents | $ 424,155 | $ 276,915 |  | $ 302,991 |  | $ 173,586
Total current assets | 1,292,843 | 1,092,113 |  |  |  |
Total assets | 6,327,976 | 5,875,549 |  |  |  |
Accounts payable |  |  |  |  |  |
Trade | 303,779 | 264,090 |  |  |  |
Total current liabilities | 722,280 | 648,484 |  |  |  |
Total liabilities and equity | 6,327,976 | 5,875,549 |  |  |  |
Consolidated Statement of Cash Flows |  |  |  |  |  |
Accounts payable - trade | 28,410 | (52,568) |  | 36,195 |  |
Other assets and liabilities | (3,296) | 77,552 |  | (49,798) |  |
Cash flows from operating activities | 987,862 | 834,387 |  | 871,809 |  |
Cash used for additions to property, plant and equipment | (771,798) | (569,323) |  | (530,769) |  |
Cash flows from investing activities | (759,603) | (777,297) |  | (545,462) |  |
Net increase (decrease) in cash and cash equivalents | 147,240 | (26,076) |  | 129,405 |  |
As Previously Reported |  |  |  |  |  |
Consolidated Balance Sheet |  |  |  |  |  |
Cash and cash equivalents |  | 294,426 | [1] |  |  |
Total current assets |  | 1,109,624 | [1] |  |  |
Total assets |  | 5,893,060 | [1] |  |  |
Accounts payable |  |  |  |  |  |
Trade |  | 281,601 | [1] |  |  |
Total current liabilities |  | 665,995 | [1] |  |  |
Total liabilities and equity |  | 5,893,060 | [1] |  |  |
Consolidated Statement of Cash Flows |  |  |  |  |  |
Accounts payable - trade |  | (14,660) | [1] | 47,503 | [1] |
Other assets and liabilities |  | 79,546 | [1] | (51,107) | [1] |
Cash flows from operating activities |  | 874,289 | [1] | 881,808 | [1] |
Cash used for additions to property, plant and equipment |  | (583,134) | [1] | (546,758) | [1] |
Cash flows from investing activities |  | (791,108) | [1] | (561,451) | [1] |
Net increase (decrease) in cash and cash equivalents |  | 15 | [1] | 123,415 | [1] |
Adjustment |  |  |  |  |  |
Consolidated Balance Sheet |  |  |  |  |  |
Cash and cash equivalents |  | (17,511) |  |  |  |
Total current assets |  | (17,511) |  |  |  |
Total assets |  | (17,511) |  |  |  |
Accounts payable |  |  |  |  |  |
Trade |  | (17,511) |  |  |  |
Total current liabilities |  | (17,511) |  |  |  |
Total liabilities and equity |  | (17,511) |  |  |  |
Consolidated Statement of Cash Flows |  |  |  |  |  |
Accounts payable - trade |  | (37,908) |  | (11,308) |  |
Other assets and liabilities |  | (1,994) |  | 1,309 |  |
Cash flows from operating activities |  | (39,902) |  | (9,999) |  |
Cash used for additions to property, plant and equipment |  | 13,811 |  | 15,989 |  |
Cash flows from investing activities |  | 13,811 |  | 15,989 |  |
Net increase (decrease) in cash and cash equivalents |  | $ (26,091) |  | $ 5,990 |  |
[1] | In Current Report on Form 8-K filed on November 16, 2011.

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