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Consolidated Statement of Changes in Equity - USD ($)
$ in Millions
Total
Series A Common and Common shares
Additional paid-in capital
Treasury shares
Retained earnings
Total U.S. Cellular shareholders' equity
Noncontrolling interests
Beginning balance at Dec. 31, 2015 $ 3,571 $ 88 $ 1,497 $ (157) $ 2,133 $ 3,561 $ 10
Net income (loss) attributable to U.S. Cellular shareholders 53       53 53  
Net income attributable to noncontrolling interests classified as equity 1           1
Repurchase of Common shares (2)     (2)   (2)  
Incentive and compensation plans 4     23 (19) 4  
Stock-based compensation awards 19   19     19  
Distributions to noncontrolling interests (1)           (1)
Ending balance at Sep. 30, 2016 3,645 88 1,516 (136) 2,167 3,635 10
Beginning balance at Dec. 31, 2016 3,645 88 1,522 (136) 2,160 3,634 11
Net income (loss) attributable to U.S. Cellular shareholders (261)       (261) (261)  
Net income attributable to noncontrolling interests classified as equity 2           2
Incentive and compensation plans 1     16 (15) 1  
Stock-based compensation awards 21   21     21  
Distributions to noncontrolling interests (2)           (2)
Ending balance at Sep. 30, 2017 $ 3,406 $ 88 $ 1,543 $ (120) $ 1,884 $ 3,395 $ 11