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Earnings Per Share | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Earnings per Share | Note 5 Earnings Per Share Basic earnings (loss) per share available to TDS common shareholders is computed by dividing Net income (loss) available to TDS common shareholders by the weighted average number of common shares outstanding during the period. Diluted earnings (loss) per share available to TDS common shareholders is computed by dividing Net income (loss) available to TDS common shareholders by the weighted average number of common shares outstanding during the period adjusted to include the effects of potentially dilutive securities. Potentially dilutive securities primarily include incremental shares issuable upon the exercise of outstanding stock options and the vesting of restricted stock units. 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 earnings per share) |  |  |  |  |
Basic earnings (loss) per share available to TDS common |  |  |  |  |  |  |  |
shareholders: |  |  |  |  |  |  |  |
Net income (loss) available to TDS common shareholders used in basic earnings (loss) per share | $ | 43 |  | $ | 219 |  | $ | (136)
Adjustments to compute diluted earnings: |  |  |  |  |  |  |  |
| Noncontrolling interest adjustment |  | – |  |  | (1) |  |  | –
Net income (loss) available to TDS common shareholders | $ | 43 |  | $ | 218 |  | $ | (136)
used in diluted earnings (loss) per share
Weighted average number of shares used in basic |  |  |  |  |  |  |  |
| earnings (loss) per share: |  |  |  |  |  |  |  |
|  | Common Shares |  | 103 |  |  | 102 |  |  | 101
|  | Series A Common Shares |  | 7 |  |  | 7 |  |  | 7
|  |  | Total |  | 110 |  |  | 109 |  |  | 108
Effects of dilutive securities 1 |  | 1 |  |  | 1 |  |  | –
Weighted average number of shares used in diluted |  |  |  |  |  |  |  |
| earnings (loss) per share |  | 111 |  |  | 110 |  |  | 108
Basic earnings (loss) per share available to TDS common |  |  |  |  |  |  |  |
| shareholders | $ | 0.39 |  | $ | 2.02 |  | $ | (1.26)
Diluted earnings (loss) per share available to TDS common |  |  |  |  |  |  |  |
| shareholders | $ | 0.39 |  | $ | 1.98 |  | $ | (1.26)
1 | There were no effects of dilutive securities in 2014 due to the net loss for the year.
Certain Common Shares issuable upon the exercise of stock options, vesting of restricted stock units or conversion of preferred shares were not included in average diluted shares outstanding for the calculation of Diluted earnings (loss) per share available to TDS common shareholders because their effects were antidilutive. The number of such Common Shares excluded was 4 million shares, 5 million shares and 10 million shares for 2016, 2015, and 2014 respectively.

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