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Consolidated Statement Of Comprehensive Income - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Statement of Comprehensive Income [Abstract] |  |  |  |
Net income (loss) | $ (231) | $ 16 | $ (176) | $ 58
Change related to retirement plan |  |  |  |
Amortization of prior service cost |  |  | (1) | (1)
Change in deferred income taxes |  |  |  | 1
Comprehensive income (loss) | (231) | 16 | (177) | 58
Less: Net income (loss) attributable to noncontrolling interests, net of tax | (50) | 3 | (42) | 9
Comprehensive income (loss) attributable to TDS shareholders | $ (181) | $ 13 | $ (135) | $ 49

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