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Basis of Presentation, Narrative (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Basis of Presentation [Line Items] |  |  |  |
Depreciation, amortization and accretion | $ 220 | $ 211 | $ 441 | $ 422
Selling, general and administrative | 417 | 420 | 813 | 826
Other, net income | 1 | 1 | 2 | 2
Income before income taxes | 65 | 22 | 146 | 99
Net income | $ 44 | $ 12 | $ 101 | $ 55
Basic earnings per share available to TDS common shareholders | $ 0.30 | $ 0.09 | $ 0.65 | $ 0.43
Diluted earnings per share available to TDS common shareholders | $ 0.29 | $ 0.09 | $ 0.63 | $ 0.42
Amounts recorded gross in revenues that are billed to customers and remitted to governmental authorities | $ 22 | $ 20 | $ 45 | $ 38
Franchise rights |  |  |  |
Basis of Presentation [Line Items] |  |  |  |
Useful life |  |  | 15 years |
Impairment of franchise rights |  |  | $ 0 |
Depreciation, amortization and accretion | 4 |  | 9 |
Net income | $ (3) |  | $ (7) |
Basic earnings per share available to TDS common shareholders | $ (0.03) |  | $ (0.06) |
Diluted earnings per share available to TDS common shareholders | $ (0.03) |  | $ (0.06) |
Adjustment | ASU 2017-07 |  |  |  |
Basis of Presentation [Line Items] |  |  |  |
Selling, general and administrative |  | 1 |  | 1
Other, net income |  | 1 |  | 1
Income before income taxes |  | 0 |  | 0
Net income |  | $ 0 |  | $ 0
Basic earnings per share available to TDS common shareholders |  | $ 0 |  | $ 0
Cumulative impact to retained earnings |  | $ 0 |  | $ 0
U.S. Cellular |  |  |  |
Basis of Presentation [Line Items] |  |  |  |
TDS ownership of U.S. Cellular | 83.00% |  | 83.00% |

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