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Revision of Prior Period Amounts, Balance Sheet and Income Statement (Details) (USD $) | 9 Months Ended | 3 Months Ended | 9 Months Ended |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2011 | Sep. 30, 2010 As Previously Reported | Sep. 30, 2010 As Previously Reported | Dec. 31, 2010 As Previously Reported | Sep. 30, 2010 Adjustment | Sep. 30, 2010 Adjustment | Dec. 31, 2010 Adjustment
Revision of prior period amounts, reason for revision | In preparing its financial statements for the nine months ended September 30, 2011, U.S. Cellular discovered certain errors related to accounting for asset retirement obligations and asset retirement costs. These errors resulted in the overstatement of Total operating expenses, Property, plant and equipment, net and Other deferred liabilities and credits in the first and second quarter 2011 interim financial statements and in the 2010, 2009 and 2008 annual periods reported in the Company’s December 31, 2010 financial statements. The December 31, 2007 Retained earnings balance presented in the December 31, 2010 annual financial statements was also overstated as a result of these errors. 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, amendments of previously filed reports were not required. However, if the adjustments to correct the cumulative errors had been recorded in the third quarter 2011, U.S. Cellular believes the impact would have been significant to the third quarter results and would have impacted comparisons to prior periods. As permitted by SAB 108, revisions for these immaterial amounts to previously reported annual and quarterly results are reflected in the financial information herein and will be reflected in future filings containing such financial information. The impact of these errors was an increase to Retained earnings of $3.8 million, $2.8 million and $2.6 million in 2010, 2009 and 2008, respectively. |  |  |  |  |  |  |  |  |
Consolidated Balance Sheet |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, net | $ 2,654,494,000 |  |  |  |  | $ 2,615,072,000 | [1] |  |  | $ (40,550,000)
Total assets | 6,280,601,000 |  |  |  |  | 5,933,610,000 | [1] |  |  | (40,550,000)
Net deferred income tax liability | 742,343,000 |  |  |  |  | 579,769,000 | [1] |  |  | 3,675,000
Other deferred liabilities and credits | 235,032,000 |  |  |  |  | 284,949,000 | [1] |  |  | (50,094,000)
Retained earnings | 2,294,562,000 |  |  |  |  | 2,129,638,000 | [1] |  |  | 5,869,000
Total U.S. Cellular shareholders' equity | 3,612,451,000 |  |  |  |  | 3,480,583,000 | [1] |  |  | 5,869,000
Total equity | 3,683,354,000 |  |  |  |  | 3,534,101,000 | [1] |  |  | 5,869,000
Total liabilities and equity | 6,280,601,000 |  |  |  |  | 5,933,610,000 | [1] |  |  | (40,550,000)
Consolidated Statement of Operations |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion | 431,581,000 | 144,717,000 | [2] | 432,405,000 | [2] |  |  | (1,526,000) | (4,574,000) |
Total operating expenses | 2,979,249,000 | 1,000,948,000 | [2] | 2,913,570,000 | [2] |  |  | (1,526,000) | (4,574,000) |
Operating income | 264,464,000 | 59,833,000 | [2] | 200,961,000 | [2] |  |  | 1,526,000 | 4,574,000 |
Income before income taxes | 293,640,000 | 68,329,000 | [2] | 229,232,000 | [2] |  |  | 1,526,000 | 4,574,000 |
Income tax expense | 102,771,000 | 25,051,000 | [2] | 86,894,000 | [2] |  |  | 588,000 | 1,762,000 |
Net income | 190,869,000 | 43,278,000 | [2] | 142,338,000 | [2] |  |  | 938,000 | 2,812,000 | 3,800,000
Net income attributable to U.S. Cellular shareholders | $ 172,240,000 | $ 37,358,000 | [2] | $ 125,480,000 | [2] |  |  | $ 938,000 | $ 2,812,000 |
Basic earnings per share attributable to U.S. Cellular shareholders | $ 2.03 | $ 0.43 | [2] | $ 1.45 | [2] |  |  | $ 0.02 | $ 0.04 |
Diluted earnings per share attributable to U.S. Cellular shareholders | $ 2.02 | $ 0.43 | [2] | $ 1.45 | [2] |  |  | $ 0.01 | $ 0.03 |
[1] | In Annual Report on Form 10-K for the year ended December 31, 2010, filed on February 25, 2011.
[2] | In Quarterly Report on Form 10-Q for the period ended September 30, 2010, filed on November 4, 2010.

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