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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Earnings per share | The amounts used in computing earnings (loss) per common share and the effects of potentially dilutive securities on the weighted average number of common shares were as follows:
Year Ended December 31, | 2016 |  | 2015 |  | 2014
(Dollars and shares in millions, except per share amounts) |  |  |  |  |
Net income (loss) attributable to U.S. Cellular shareholders | $ | 48 |  | $ | 241 |  | $ | (43)
Weighted average number of shares used in basic earnings (loss) per share |  | 85 |  |  | 84 |  |  | 84
Effect of dilutive securities 1 |  | – |  |  | 1 |  |  | –
Weighted average number of shares used in diluted earnings (loss) per share |  | 85 |  |  | 85 |  |  | 84
Basic earnings (loss) per share attributable to U.S. Cellular shareholders | $ | 0.56 |  | $ | 2.86 |  | $ | (0.51)
Diluted earnings (loss) per share attributable to U.S. Cellular shareholders | $ | 0.56 |  | $ | 2.84 |  | $ | (0.51)
1 | There were no effects of dilutive securities in 2014 due to the net loss for the year.

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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