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Revenue Recognition Consolidated Statement Of Operations (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Operating revenues |  |
Service | $ 978 | $ 997
Equipment and product sales | 247 | 241
Total operating revenues | 1,225 | 1,238
Cost of equipment and products | 246 | 270
(Gain) loss on license sales and exchanges, net | (7) | (17)
Total operating expenses | 1,145 | 1,157
Operating income (loss) | 80 | 81
Income (loss) before income taxes | 81 | 77
Income tax expense | 24 | 34
Net income (loss) | 57 | 43
Less: Net income attributable to noncontrolling interests, net of tax | 18 | 6
Net income (loss) attributable to TDS shareholders | 39 | 37
Net income (loss) avalable to TDS shareholders | $ 39 | $ 37
Basic earnings (loss) per share available to TDS common shareholders | $ 0.35 | $ 0.34
Diluted earnings (loss) per share available to TDS common shareholders | $ 0.34 | $ 0.33
Results under prior accounting standards |  |
Operating revenues |  |
Service | $ 1,008 |
Equipment and product sales | 226 |
Total operating revenues | 1,235 |
Cost of equipment and products | 249 |
(Gain) loss on license sales and exchanges, net | (6) |
Total operating expenses | 1,149 |
Operating income (loss) | 86 |
Income (loss) before income taxes | 87 |
Income tax expense | 26 |
Net income (loss) | 61 |
Less: Net income attributable to noncontrolling interests, net of tax | 19 |
Net income (loss) attributable to TDS shareholders | 42 |
Net income (loss) avalable to TDS shareholders | $ 42 |
Basic earnings (loss) per share available to TDS common shareholders | $ 0.38 |
Diluted earnings (loss) per share available to TDS common shareholders | $ 0.37 |
Adjustment |  |
Operating revenues |  |
Service | $ (30) |
Equipment and product sales | 21 |
Total operating revenues | (10) |
Cost of equipment and products | (3) |
(Gain) loss on license sales and exchanges, net | (1) |
Total operating expenses | (4) |
Operating income (loss) | (6) |
Income (loss) before income taxes | (6) |
Income tax expense | (2) |
Net income (loss) | (4) |
Less: Net income attributable to noncontrolling interests, net of tax | (1) |
Net income (loss) attributable to TDS shareholders | (3) |
Net income (loss) avalable to TDS shareholders | $ (3) |
Basic earnings (loss) per share available to TDS common shareholders | $ (0.03) |
Diluted earnings (loss) per share available to TDS common shareholders | $ (0.03) |

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