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Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 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
March 31,
 20212020
(Dollars and shares in millions, except per share amounts)  
Net income attributable to TDS common shareholders used in basic earnings per share$57 $69 
Adjustments to compute diluted earnings:
Noncontrolling interest adjustment(1)(1)
Net income attributable to TDS common shareholders used in diluted earnings per share$56 $68 
Weighted average number of shares used in basic earnings per share:
Common Shares107 108 
Series A Common Shares7 
Total114 115 
Effects of dilutive securities2 
Weighted average number of shares used in diluted earnings per share116 116 
Basic earnings per share attributable to TDS common shareholders$0.49 $0.60 
Diluted earnings per share attributable to TDS common shareholders$0.48 $0.59