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Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2023
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,
 2023202220232022
(Dollars and shares in millions, except per share amounts)   
Net income (loss) attributable to TDS common shareholders used in basic earnings (loss) per share$(19)$18 $(29)$61 
Adjustments to compute diluted earnings:
Noncontrolling interest adjustment —  (1)
Net income (loss) attributable to TDS common shareholders used in diluted earnings (loss) per share$(19)$18 $(29)$60 
Weighted average number of shares used in basic earnings (loss) per share:
Common Shares106 108 106 108 
Series A Common Shares7 7 
Total113 115 113 115 
Effects of dilutive securities  
Weighted average number of shares used in diluted earnings (loss) per share113 116 113 116 
Basic earnings (loss) per share attributable to TDS common shareholders$(0.17)$0.15 $(0.25)$0.53 
Diluted earnings (loss) per share attributable to TDS common shareholders$(0.17)$0.15 $(0.25)$0.52