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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2021
Earnings Per Share [Abstract] |
Earnings per share | The amounts used in computing basic and diluted earnings per share attributable to TDS common shareholders were as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
(Dollars and shares in millions, except per share amounts) |  |  |  |  |  |  |
Net income attributable to TDS common shareholders used in basic earnings per share | $ | 20 |  |  | $ | 65 |  |  | $ | 77 |  |  | $ | 135 |
Adjustments to compute diluted earnings: |  |  |  |  |  |  |
Noncontrolling interest adjustment | — |  |  | — |  |  | (1) |  |  | (2) |
Net income attributable to TDS common shareholders used in diluted earnings per share | $ | 20 |  |  | $ | 65 |  |  | $ | 76 |  |  | $ | 133 |
Weighted average number of shares used in basic earnings per share: |  |  |  |  |  |  |
Common Shares | 108 |  |  | 107 |  |  | 108 |  |  | 108 |
Series A Common Shares | 7 |  |  | 7 |  |  | 7 |  |  | 7 |
Total | 115 |  |  | 114 |  |  | 115 |  |  | 115 |
Effects of dilutive securities | 1 |  |  | 1 |  |  | 1 |  |  | — |
Weighted average number of shares used in diluted earnings per share | 116 |  |  | 115 |  |  | 116 |  |  | 115 |
Basic earnings per share attributable to TDS common shareholders | $ | 0.18 |  |  | $ | 0.57 |  |  | $ | 0.67 |  |  | $ | 1.18 |
Diluted earnings per share attributable to TDS common shareholders | $ | 0.17 |  |  | $ | 0.56 |  |  | $ | 0.65 |  |  | $ | 1.15 |

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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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