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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
Earnings per share | The amounts used in computing basic and diluted earnings (loss) per share attributable to TDS common shareholders were as follows:
Year Ended December 31, | 2023 |  | 2022 |  | 2021
(Dollars and shares in millions, except per share amounts) |  |  |  |  |
Net income (loss) attributable to TDS common shareholders used in basic earnings (loss) per share | $ | (569) |  |  | $ | (7) |  |  | $ | 117 |
Adjustments to compute diluted earnings (loss): |  |  |  |  |
Noncontrolling interest adjustment | (1) |  |  | (1) |  |  | (1) |
Net income (loss) attributable to TDS common shareholders used in diluted earnings (loss) per share | $ | (570) |  |  | $ | (8) |  |  | $ | 116 |
Weighted average number of shares used in basic earnings (loss) per share: |  |  |  |  |
Common Shares | 106 |  |  | 107 |  |  | 108 |
Series A Common Shares | 7 |  |  | 7 |  |  | 7 |
Total | 113 |  |  | 114 |  |  | 115 |
Effects of dilutive securities | — |  |  | — |  |  | 1 |
Weighted average number of shares used in diluted earnings (loss) per share | 113 |  |  | 114 |  |  | 116 |
Basic earnings (loss) per share attributable to TDS common shareholders | $ | (5.05) |  |  | $ | (0.07) |  |  | $ | 1.03 |
Diluted earnings (loss) per share attributable to TDS common shareholders | $ | (5.06) |  |  | $ | (0.07) |  |  | $ | 1.00 |

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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