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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

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