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Business Segment Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | $ 1,297 | [1] | $ 1,251 |  | $ 3,777 | [1] | $ 3,736 |  |  |
Selling, general and administrative |  | 421 | [1] | 423 |  | 1,232 | [1] | 1,249 |  |  |
Depreciation, amortization and accretion |  | 220 |  | 209 |  | 662 |  | 632 |  |  |
Loss on impairment of goodwill |  | 0 |  | 262 | [2] | 0 |  | 262 | [2] |  |
(Gain) loss on asset disposals, net |  | 0 |  | 6 |  | 3 |  | 16 |  |  |
(Gain) loss on sale of business and other exit costs, net |  | 0 |  | (1) |  | 0 |  | (1) |  |  |
(Gain) loss on license sales and exchanges, net |  | 0 |  | 0 |  | (18) | [1] | (19) |  |  |
Operating income (loss) |  | 51 | [1] | (233) | [3] | 192 | [1] | (125) | [3] |  |
Equity in earnings of unconsolidated entities |  | 42 |  | 35 |  | 121 |  | 101 |  |  |
Interest and dividend income |  | 6 |  | 4 |  | 18 |  | 12 |  |  |
Interest expense |  | (43) |  | (43) |  | (129) |  | (128) |  |  |
Other, net |  | 2 |  | 1 | [3] | 1 |  | 3 | [3] |  |
Income (loss) before income taxes |  | 58 | [1] | (236) |  | 203 | [1] | (137) |  |  |
Income tax expense (benefit) |  | 5 | [1] | (5) |  | 48 | [1] | 39 |  |  |
Net income (loss) |  | 53 | [1] | (231) |  | 155 | [1] | (176) |  |  |
Depreciation, amortization and accretion |  | 220 |  | 209 |  | 662 |  | 632 |  |  |
Loss on impairment of goodwill |  | 0 |  | 262 | [2] | 0 |  | 262 | [2] |  |
(Gain) loss on asset disposals, net |  | 0 |  | 6 |  | 3 |  | 16 |  |  |
(Gain) loss on sale of business and other exit costs, net |  | 0 |  | (1) |  | 0 |  | (1) |  |  |
(Gain) loss on license sales and exchanges, net |  | 0 |  | 0 |  | (18) | [1] | (19) |  |  |
Interest expense |  | 43 |  | 43 |  | 129 |  | 128 |  |  |
Income tax expense (benefit) |  | 5 | [1] | (5) |  | 48 | [1] | 39 |  |  |
Adjusted EBITDA | [4] | 321 |  | 283 |  | 979 |  | 881 |  |  |
Investments in unconsolidated entities |  | 500 |  | 467 |  | 500 |  | 467 |  | $ 453 |
Total assets |  | 9,719 | [5] | 9,210 |  | 9,719 | [5] | 9,210 |  | $ 9,295 | [5]
Capital expenditures |  | 177 |  | 172 |  | 430 |  | 402 |  |  |
U.S. Cellular |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill impairment |  |  |  | 227 |  |  |  |  |  |  |
Service |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 1,017 | [1] | 988 |  | 2,988 | [1] | 2,976 |  |  |
Cost of goods and services |  | 314 |  | 294 |  | 902 |  | 874 |  |  |
Equipment and product sales |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 280 | [1] | 263 |  | 789 | [1] | 760 |  |  |
Cost of goods and services |  | 291 | [1] | 291 |  | 804 | [1] | 848 |  |  |
U.S. Cellular |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 1,001 | [1] | 963 |  | 2,916 | [1] | 2,862 |  |  |
Selling, general and administrative |  | 346 | [1] | 350 |  | 1,014 | [1] | 1,041 |  |  |
Depreciation, amortization and accretion |  | 160 |  | 153 |  | 478 |  | 460 |  |  |
Loss on impairment of goodwill | [2] |  |  | 370 |  |  |  | 370 |  |  |
(Gain) loss on asset disposals, net |  | 3 |  | 5 |  | 5 |  | 14 |  |  |
(Gain) loss on sale of business and other exit costs, net |  |  |  | (1) |  |  |  | (1) |  |  |
(Gain) loss on license sales and exchanges, net |  |  |  |  |  | (18) | [1] | (19) |  |  |
Operating income (loss) |  | 34 | [1] | (360) |  | 155 | [1] | (301) |  |  |
Equity in earnings of unconsolidated entities |  | 42 |  | 35 |  | 120 |  | 101 |  |  |
Interest and dividend income |  | 4 |  | 2 |  | 10 |  | 6 |  |  |
Interest expense |  | (29) |  | (28) |  | (87) |  | (85) |  |  |
Other, net |  | 0 |  | 0 |  | 0 |  | 1 |  |  |
Income (loss) before income taxes |  | 51 | [1] | (351) |  | 198 | [1] | (278) |  |  |
Income tax expense (benefit) |  | 14 | [1] | (53) |  | 55 | [1] | (19) |  |  |
Net income (loss) |  | 37 | [1] | (298) |  | 143 | [1] | (259) |  |  |
Depreciation, amortization and accretion |  | 160 |  | 153 |  | 478 |  | 460 |  |  |
Loss on impairment of goodwill | [2] |  |  | 370 |  |  |  | 370 |  |  |
(Gain) loss on asset disposals, net |  | 3 |  | 5 |  | 5 |  | 14 |  |  |
(Gain) loss on sale of business and other exit costs, net |  |  |  | (1) |  |  |  | (1) |  |  |
(Gain) loss on license sales and exchanges, net |  |  |  |  |  | (18) | [1] | (19) |  |  |
Interest expense |  | 29 |  | 28 |  | 87 |  | 85 |  |  |
Income tax expense (benefit) |  | 14 | [1] | (53) |  | 55 | [1] | (19) |  |  |
Adjusted EBITDA | [4] | 243 |  | 204 |  | 750 |  | 631 |  |  |
Investments in unconsolidated entities |  | 461 |  | 429 |  | 461 |  | 429 |  |  |
Total assets |  | 7,228 |  | 6,780 |  | 7,228 |  | 6,780 |  |  |
Capital expenditures |  | 118 |  | 112 |  | 274 |  | 257 |  |  |
U.S. Cellular | Service |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 759 | [1] | 737 |  | 2,224 | [1] | 2,223 |  |  |
Cost of goods and services |  | 200 |  | 185 |  | 566 |  | 549 |  |  |
U.S. Cellular | Equipment and product sales |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 242 | [1] | 226 |  | 692 | [1] | 639 |  |  |
Cost of goods and services |  | 258 | [1] | 261 |  | 716 | [1] | 749 |  |  |
TDS Telecom Total |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 234 | [1] | 230 |  | 695 | [1] | 690 | [6] |  |
Selling, general and administrative |  | 63 | [1] | 63 |  | 187 | [1] | 185 | [6] |  |
Depreciation, amortization and accretion |  | 53 |  | 49 |  | 160 |  | 146 |  |  |
Loss on impairment of goodwill |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on asset disposals, net |  | (3) |  | 1 |  | (2) |  | 2 |  |  |
(Gain) loss on sale of business and other exit costs, net |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on license sales and exchanges, net |  |  |  |  |  | 0 | [1] | 0 |  |  |
Operating income (loss) |  | 28 | [1] | 27 | [3] | 71 | [1] | 88 | [3] |  |
Equity in earnings of unconsolidated entities |  | 0 |  | 0 |  | 0 |  | 0 |  |  |
Interest and dividend income |  | 2 |  | 2 |  | 5 |  | 4 |  |  |
Interest expense |  | 1 |  | 0 |  | 1 |  | 0 |  |  |
Other, net |  | 1 |  | 1 | [3] | 2 |  | 2 | [3] |  |
Income (loss) before income taxes |  | 31 | [1] | 30 |  | 80 | [1] | 95 |  |  |
Income tax expense (benefit) | [7] | (5) | [1] | 11 |  | 7 | [1] | 37 |  |  |
Net income (loss) |  | 36 | [1] | 18 |  | 73 | [1] | 58 |  |  |
Depreciation, amortization and accretion |  | 53 |  | 49 |  | 160 |  | 146 |  |  |
Loss on impairment of goodwill |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on asset disposals, net |  | (3) |  | 1 |  | (2) |  | 2 |  |  |
(Gain) loss on sale of business and other exit costs, net |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on license sales and exchanges, net |  |  |  |  |  | 0 | [1] | 0 |  |  |
Interest expense |  | (1) |  | 0 |  | (1) |  | 0 |  |  |
Income tax expense (benefit) | [7] | (5) | [1] | 11 |  | 7 | [1] | 37 |  |  |
Adjusted EBITDA | [4] | 80 |  | 79 |  | 236 |  | 243 |  |  |
Investments in unconsolidated entities |  | 4 |  | 4 |  | 4 |  | 4 |  |  |
Total assets |  | 1,929 |  | 1,822 |  | 1,929 |  | 1,822 |  |  |
Capital expenditures |  | 54 |  | 56 |  | 140 |  | 127 |  |  |
TDS Telecom Total | Service |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 234 | [1] | 230 |  | 693 | [1] | 689 | [6] |  |
Cost of goods and services |  | 94 |  | 90 |  | 277 |  | 266 | [6] |  |
TDS Telecom Total | Equipment and product sales |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 0 | [1] | 0 |  | 1 | [1] | 1 |  |  |
Cost of goods and services |  | 0 | [1] | 0 |  | 1 | [1] | 2 |  |  |
TDS Telecom Wireline |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 177 | [1] | 179 |  | 526 | [1] | 538 |  |  |
Selling, general and administrative |  | 49 | [1] | 49 |  | 146 | [1] | 147 |  |  |
Depreciation, amortization and accretion |  | 35 |  | 38 |  | 108 |  | 114 |  |  |
Loss on impairment of goodwill |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on asset disposals, net |  | (4) |  | 0 |  | (3) |  | 1 |  |  |
(Gain) loss on sale of business and other exit costs, net |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on license sales and exchanges, net |  |  |  |  |  | 0 | [1] | 0 |  |  |
Operating income (loss) |  | 28 | [1] | 25 | [3] | 75 | [1] | 81 | [3] |  |
Equity in earnings of unconsolidated entities |  | 0 |  | 0 |  | 0 |  | 0 |  |  |
Interest and dividend income |  | 2 |  | 2 |  | 5 |  | 4 |  |  |
Interest expense |  | 1 |  | 0 |  | 1 |  | 0 |  |  |
Other, net |  | 1 |  | 1 | [3] | 2 |  | 3 | [3] |  |
Income (loss) before income taxes |  | 31 | [1] | 28 |  | 83 | [1] | 88 |  |  |
Depreciation, amortization and accretion |  | 35 |  | 38 |  | 108 |  | 114 |  |  |
Loss on impairment of goodwill |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on asset disposals, net |  | (4) |  | 0 |  | (3) |  | 1 |  |  |
(Gain) loss on sale of business and other exit costs, net |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on license sales and exchanges, net |  |  |  |  |  | 0 | [1] | 0 |  |  |
Interest expense |  | (1) |  | 0 |  | (1) |  | 0 |  |  |
Adjusted EBITDA | [4] | 61 |  | 66 |  | 186 |  | 202 |  |  |
Investments in unconsolidated entities |  | 4 |  | 4 |  | 4 |  | 4 |  |  |
Total assets |  | 1,302 |  | 1,201 |  | 1,302 |  | 1,201 |  |  |
Capital expenditures |  | 41 |  | 41 |  | 103 |  | 91 |  |  |
TDS Telecom Wireline | Service |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 176 | [1] | 178 |  | 524 | [1] | 537 |  |  |
Cost of goods and services |  | 68 |  | 66 |  | 200 |  | 194 |  |  |
TDS Telecom Wireline | Equipment and product sales |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 0 | [1] | 0 |  | 1 | [1] | 1 |  |  |
Cost of goods and services |  | 0 | [1] | 0 |  | 1 | [1] | 2 |  |  |
TDS Telecom Cable |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 58 | [1] | 52 |  | 170 | [1] | 152 |  |  |
Selling, general and administrative |  | 14 | [1] | 13 |  | 42 | [1] | 39 |  |  |
Depreciation, amortization and accretion |  | 17 |  | 11 |  | 52 |  | 32 |  |  |
Loss on impairment of goodwill |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on asset disposals, net |  | 1 |  | 1 |  | 1 |  | 1 |  |  |
(Gain) loss on sale of business and other exit costs, net |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on license sales and exchanges, net |  |  |  |  |  | 0 | [1] | 0 |  |  |
Operating income (loss) |  | 0 | [1] | 2 |  | (4) | [1] | 7 |  |  |
Equity in earnings of unconsolidated entities |  | 0 |  | 0 |  | 0 |  | 0 |  |  |
Interest and dividend income |  | 0 |  | 0 |  | 1 |  | 0 |  |  |
Interest expense |  | 0 |  | 0 |  | 0 |  | 0 |  |  |
Other, net |  | 0 |  | 0 |  | 0 |  | 0 |  |  |
Income (loss) before income taxes |  | 0 | [1] | 2 |  | (3) | [1] | 7 |  |  |
Depreciation, amortization and accretion |  | 17 |  | 11 |  | 52 |  | 32 |  |  |
Loss on impairment of goodwill |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on asset disposals, net |  | 1 |  | 1 |  | 1 |  | 1 |  |  |
(Gain) loss on sale of business and other exit costs, net |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on license sales and exchanges, net |  |  |  |  |  | 0 | [1] | 0 |  |  |
Interest expense |  | 0 |  | 0 |  | 0 |  | 0 |  |  |
Adjusted EBITDA | [4] | 18 |  | 14 |  | 50 |  | 41 |  |  |
Investments in unconsolidated entities |  | 0 |  | 0 |  | 0 |  | 0 |  |  |
Total assets |  | 637 |  | 619 |  | 637 |  | 619 |  |  |
Capital expenditures |  | 13 |  | 14 |  | 37 |  | 35 |  |  |
TDS Telecom Cable | Service |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 58 | [1] | 52 |  | 170 | [1] | 152 |  |  |
Cost of goods and services |  | 26 |  | 25 |  | 78 |  | 73 |  |  |
TDS Telecom Cable | Equipment and product sales |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 0 | [1] | 0 |  | 0 | [1] | 0 |  |  |
Cost of goods and services |  | 0 | [1] | 0 |  | 0 | [1] | 0 |  |  |
TDS Telecom HMS |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill impairment |  |  |  | 35 |  |  |  |  |  |  |
Corporate, Eliminations and Other |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 62 | [1] | 58 |  | 166 | [1] | 184 |  |  |
Selling, general and administrative |  | 12 | [1] | 10 |  | 31 | [1] | 23 |  |  |
Depreciation, amortization and accretion |  | 7 |  | 7 |  | 24 |  | 26 |  |  |
Loss on impairment of goodwill | [2] |  |  | (108) |  |  |  | (108) |  |  |
(Gain) loss on asset disposals, net |  | 0 |  | 0 |  | 0 |  | 0 |  |  |
(Gain) loss on sale of business and other exit costs, net |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on license sales and exchanges, net |  |  |  |  |  | 0 | [1] | 0 |  |  |
Operating income (loss) |  | (11) | [1] | 100 |  | (34) | [1] | 88 |  |  |
Equity in earnings of unconsolidated entities |  | 0 |  | 0 |  | 1 |  | 0 |  |  |
Interest and dividend income |  | 0 |  | 0 |  | 3 |  | 2 |  |  |
Interest expense |  | (15) |  | (15) |  | (43) |  | (43) |  |  |
Other, net |  | 1 |  | 0 |  | (1) |  | 0 |  |  |
Income (loss) before income taxes |  | (24) | [1] | 85 |  | (75) | [1] | 46 |  |  |
Income tax expense (benefit) |  | (4) | [1] | 37 |  | (14) | [1] | 21 |  |  |
Net income (loss) |  | (20) | [1] | 49 |  | (61) | [1] | 25 |  |  |
Depreciation, amortization and accretion |  | 7 |  | 7 |  | 24 |  | 26 |  |  |
Loss on impairment of goodwill | [2] |  |  | (108) |  |  |  | (108) |  |  |
(Gain) loss on asset disposals, net |  | 0 |  | 0 |  | 0 |  | 0 |  |  |
(Gain) loss on sale of business and other exit costs, net |  |  |  | 0 |  |  |  | 0 |  |  |
(Gain) loss on license sales and exchanges, net |  |  |  |  |  | 0 | [1] | 0 |  |  |
Interest expense |  | 15 |  | 15 |  | 43 |  | 43 |  |  |
Income tax expense (benefit) |  | (4) | [1] | 37 |  | (14) | [1] | 21 |  |  |
Adjusted EBITDA | [4] | (2) |  | 0 |  | (7) |  | 7 |  |  |
Investments in unconsolidated entities |  | 35 |  | 34 |  | 35 |  | 34 |  |  |
Total assets |  | 562 |  | 608 |  | 562 |  | 608 |  |  |
Capital expenditures |  | 5 |  | 4 |  | 16 |  | 19 |  |  |
Goodwill impairment |  |  |  | 143 |  |  |  |  |  |  |
Corporate, Eliminations and Other | Service |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 24 | [1] | 21 |  | 71 | [1] | 64 |  |  |
Cost of goods and services |  | 20 |  | 19 |  | 59 |  | 59 |  |  |
Corporate, Eliminations and Other | Equipment and product sales |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  | 38 | [1] | 37 |  | 96 | [1] | 120 |  |  |
Cost of goods and services |  | $ 33 | [1] | $ 30 |  | $ 87 | [1] | $ 97 |  |  |
[1] | As of January 1, 2018, TDS adopted ASU 2014-09 using a modified retrospective approach. Under this method, the new accounting standard is applied only to the most recent period presented. As a result, 2018 amounts include the impacts of ASU 2014-09, but 2017 amounts remain as previously reported, except as specifically stated. See Note 2 — Revenue Recognition for additional information.
[2] | During the three months ended September 30, 2017, U.S. Cellular recorded a goodwill impairment of $370 million while TDS recorded a goodwill impairment of the U.S. Cellular reporting unit of $227 million. Prior to 2009, TDS accounted for U.S. Cellular's share repurchases as step acquisitions, allocating a portion of the share repurchase value to TDS' Goodwill. Further, goodwill of the U.S. Cellular reporting unit was impaired at the TDS level in 2003 but not at U.S. Cellular. Consequently, U.S. Cellular's goodwill on a stand-alone basis and any resulting impairments of goodwill does not equal the TDS consolidated goodwill related to U.S. Cellular. The TDS adjustment of $143 million is included in "Corporate, Eliminations and Other." During the three months ended September 30, 2017, TDS also recorded a goodwill impairment of $35 million related to its HMS operations included in "Corporate, Eliminations and Other."
[3] | ASU 2017-07, regarding net periodic pension cost and net periodic postretirement benefit cost was adopted as of January 1, 2018, and applied retrospectively. All prior year numbers have been recast to conform to this standard.
[4] | Adjusted earnings before interest, taxes, depreciation, amortization and accretion (Adjusted EBITDA) is a segment measure reported to the chief operating decision maker for purposes of making decisions about allocating resources to the segments and assessing their performance. Adjusted EBITDA is defined as net income, adjusted for the items set forth in the reconciliation above. TDS believes Adjusted EBITDA is a useful measure of TDS’ operating results before significant recurring non-cash charges, gains and losses, and other items as presented above as they provide additional relevant and useful information to investors and other users of TDS' financial data in evaluating the effectiveness of its operations and underlying business trends in a manner that is consistent with management's evaluation of business performance.
[5] | The consolidated total assets as of September 30, 2018 and December 31, 2017, include assets held by consolidated variable interest entities (VIEs) of $831 million and $765 million, respectively, which are not available to be used to settle the obligations of TDS. The consolidated total liabilities as of September 30, 2018 and December 31, 2017, include certain liabilities of consolidated VIEs of $17 million and $21 million, respectively, for which the creditors of the VIEs have no recourse to the general credit of TDS. See Note 10 — Variable Interest Entities for additional information.
[6] | TDS Telecom Total includes eliminations between the Wireline and Cable segments.
[7] | Income tax expense (benefit) is not provided at the individual segment level for Wireline and Cable. TDS calculates income tax expense for “TDS Telecom Total”.

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- Definition This element represents a segment measure reported to the chief operating decision maker for purposes of making decisions about allocating resources to the segments and assessing their performance.The amount is calculated as Income before income taxes, adjusted for: Depreciation, amortization and accretion; net Gain or loss on asset disposals (if any); net Gain or loss on sale of business and other exit costs (if any); net Gain or loss on license sales and exchanges (if any); Interest expense; and Income tax expense (benefit). + References No definition available. + Details
Name: | tds_AdjustedEbitda
Namespace Prefix: | tds_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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