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Business Segment Information | 12 Months Ended
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Dec. 31, 2024
Segment Reporting [Abstract] |
Business Segment Information | Note 20 Business Segment Information UScellular and TDS Telecom are billed for services they receive from TDS, consisting primarily of information processing, accounting, finance, and general management services. Such billings are based on expenses specifically identified to UScellular and TDS Telecom and on allocations of common expenses. Management believes the method used to allocate common expenses is reasonable and that all expenses and costs applicable to UScellular and TDS Telecom are reflected in the accompanying business segment information. During the second quarter of 2024, TDS and UScellular modified their reporting structure due to the planned disposal of the UScellular wireless operations and, as a result, disaggregated the UScellular operations into two reportable segments – Wireless and Towers. This presentation reflects how TDS' and UScellular's chief operating decision maker allocates resources and evaluates operating performance following this strategic shift. UScellular Wireless generates its revenues by providing wireless services and equipment. UScellular Towers generates its revenues by leasing tower space on UScellular-owned towers to other wireless carriers. TDS Telecom generates its revenues by providing broadband, video, voice and wireless services. The Towers segment records rental revenue and the Wireless segment records a related expense when the Wireless segment uses company-owned towers to locate its network equipment, using estimated market pricing - this revenue and expense is eliminated in consolidation. Prior periods have been updated to conform to the new reportable segments. Adjusted earnings before interest, taxes, depreciation, amortization and accretion (Adjusted EBITDA) is the segment measure of profit or loss reported to the chief operating decision maker for purposes of assessing the segments' performance and making capital allocation decisions. Adjusted EBITDA is a non-GAAP financial measure that shows adjusted earnings before interest, taxes, depreciation, amortization and accretion, gains and losses, and expenses related to the strategic alternatives review of UScellular. 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 below as it provides 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. TDS’ chief operating decision maker is its President and Chief Executive Officer. Financial data for TDS’ reportable segments for 2024, 2023 and 2022, is as follows. See Note 1 — Summary of Significant Accounting Policies for additional information.
Year Ended December 31, 2024 | UScellular Wireless | UScellular Towers | TDS Telecom | Total
(Dollars in millions) |  |  |  |
Revenues from external customers | $ | 3,667 |  | $ | 103 |  | $ | 1,057 |  | $ | 4,827 |
Intersegment revenues | — |  | 131 |  | 4 |  | 135 |
| 3,667 |  | 234 |  | 1,061 |  | 4,962 |
Reconciliation of revenue: |  |  |  |
All Other revenues 1 |  |  |  | 137 |
Elimination of intersegment revenues |  |  |  | (135) |
Total operating revenues |  |  |  | $ | 4,964 |
Less 2: |  |  |  |
Cost of services (excluding Depreciation, amortization and accretion reported below) | 777 |  | 78 |  | 400 |  |
Cost of equipment and products | 906 |  | — |  | 1 |  |
Selling, general and administrative | 1,298 |  | 32 |  | 320 |  |
Expenses related to strategic alternatives review (included in Selling, general and administrative) | (33) |  | (2) |  | — |  |
Other segment items | — |  | — |  | (9) |  |
Segment Adjusted EBITDA (Non-GAAP) | $ | 719 |  | $ | 126 |  | $ | 350 |  | $ | 1,195 |
Reconciliation of Segment Adjusted EBITDA to Income (loss) before income taxes: |  |  |  |
All Other income (loss) before income taxes 1 |  |  |  | (118) |
Depreciation, amortization and accretion |  |  |  | (936) |
Expenses related to strategic alternatives review (included in Selling, general and administrative) |  |  |  | (35) |
Loss on impairment of intangible assets |  |  |  | (137) |
Loss on asset disposals, net |  |  |  | (30) |
Gain on sale of business and other exit costs, net |  |  |  | 49 |
Loss on license sales and exchanges, net |  |  |  | (3) |
Equity earnings of unconsolidated entities |  |  |  | 161 |
Interest and dividend income |  |  |  | 12 |
Interest expense |  |  |  | (178) |
Income (loss) before income taxes |  |  |  | $ | (20) |
Other segment disclosures |  |  |  |  |  |  |
Year Ended or as of December 31, 2024 | UScellular Wireless | UScellular Towers | TDS Telecom | Segment Total | UScellular | All Other 1 | TDS Consolidated Total
Depreciation, amortization and accretion | $ | (620) |  | $ | (45) |  | $ | (271) |  | $ | (936) |  |  | $ | (7) |  | $ | (943) |
Loss on impairment of intangible assets | (136) |  | — |  | (1) |  | (137) |  |  | — |  | (137) |
Loss on asset disposals, net | (17) |  | (1) |  | (12) |  | (30) |  |  | — |  | (30) |
Gain on sale of business and other exit costs, net | — |  | — |  | 49 |  | 49 |  |  | 19 |  | 68 |
Loss on license sales and exchanges, net | (3) |  | — |  | — |  | (3) |  |  | — |  | (3) |
Investments in unconsolidated entities 3 |  |  | 4 |  | 4 |  | 454 |  | 42 |  | 500 |
Total assets 4 |  |  | 2,911 |  | 2,911 |  | 10,449 |  | 322 |  | 13,682 |
Capital expenditures | $ | 554 |  | $ | 23 |  | $ | 324 |  | $ | 901 |  |  | $ | 5 |  | $ | 906 |
Year Ended December 31, 2023 | UScellular Wireless | UScellular Towers | TDS Telecom | Total
(Dollars in millions) |  |  |  |
Revenues from external customers | $ | 3,805 |  | $ | 101 |  | $ | 1,024 |  | $ | 4,930 |
Intersegment revenues | — |  | 127 |  | 4 |  | 131 |
| 3,805 |  | 228 |  | 1,028 |  | 5,061 |
Reconciliation of revenue: |  |  |  |
All Other revenues 1 |  |  |  | 230 |
Elimination of intersegment revenues |  |  |  | (131) |
Total operating revenues |  |  |  | $ | 5,160 |
Less 2: |  |  |  |
Cost of services (excluding Depreciation, amortization and accretion reported below) | 794 |  | 73 |  | 423 |  |
Cost of equipment and products | 988 |  | — |  | — |  |
Selling, general and administrative | 1,334 |  | 34 |  | 326 |  |
Expenses related to strategic alternatives review (included in Selling, general and administrative) | (8) |  | — |  | — |  |
Other segment items | — |  | — |  | (6) |  |
Segment Adjusted EBITDA (Non-GAAP) | $ | 697 |  | $ | 121 |  | $ | 285 |  | $ | 1,103 |
Reconciliation of Segment Adjusted EBITDA to Income (loss) before income taxes: |  |  |  |
All Other income (loss) before income taxes 1 |  |  |  | (79) |
Depreciation, amortization and accretion |  |  |  | (901) |
Expenses related to strategic alternatives review (included in Selling, general and administrative) |  |  |  | (8) |
Loss on impairment of intangible assets |  |  |  | (547) |
Loss on asset disposals, net |  |  |  | (27) |
Gain on license sales and exchanges, net |  |  |  | 2 |
Equity earnings of unconsolidated entities |  |  |  | 158 |
Interest and dividend income |  |  |  | 10 |
Interest expense |  |  |  | (188) |
Income (loss) before income taxes |  |  |  | $ | (477) |
Other segment disclosures |  |  |  |  |  |  |
Year Ended or as of December 31, 2023 | UScellular Wireless | UScellular Towers | TDS Telecom | Segment Total | UScellular | All Other 1 | TDS Consolidated Total
Depreciation, amortization and accretion | $ | (610) |  | $ | (46) |  | $ | (245) |  | $ | (901) |  |  | $ | (14) |  | $ | (915) |
Loss on impairment of intangible assets | — |  | — |  | (547) |  | (547) |  |  | — |  | (547) |
Gain (loss) on asset disposals, net | (19) |  | 2 |  | (10) |  | (27) |  |  | — |  | (27) |
Gain on license sales and exchanges, net | 2 |  | — |  | — |  | 2 |  |  | — |  | 2 |
Investments in unconsolidated entities 3 |  |  | 4 |  | 4 |  | 461 |  | 40 |  | 505 |
Total assets 4 |  |  | 2,864 |  | 2,864 |  | 10,750 |  | 307 |  | 13,921 |
Capital expenditures | $ | 580 |  | $ | 31 |  | $ | 577 |  | $ | 1,188 |  |  | $ | 9 |  | $ | 1,197 |
Year Ended December 31, 2022 | UScellular Wireless | UScellular Towers | TDS Telecom | Total
(Dollars in millions) |  |  |  |
Revenues from external customers | $ | 4,076 |  | $ | 93 |  | $ | 1,016 |  | $ | 5,185 |
Intersegment revenues | — |  | 123 |  | 4 |  | 127 |
| 4,076 |  | 216 |  | 1,020 |  | 5,312 |
Reconciliation of revenue: |  |  |  |
All Other revenues 1 |  |  |  | 228 |
Elimination of intersegment revenues |  |  |  | (127) |
Total operating revenues |  |  |  | $ | 5,413 |
Less 2: |  |  |  |
Cost of services (excluding Depreciation, amortization and accretion reported below) | 807 |  | 71 |  | 418 |  |
Cost of equipment and products | 1,216 |  | — |  | 1 |  |
Selling, general and administrative | 1,376 |  | 32 |  | 313 |  |
Other segment items | — |  | — |  | (3) |  |
Segment Adjusted EBITDA (Non-GAAP) | $ | 677 |  | $ | 113 |  | $ | 291 |  | $ | 1,081 |
Reconciliation of Segment Adjusted EBITDA to Income before income taxes: |  |  |  |
All Other income (loss) before income taxes 1 |  |  |  | (23) |
Depreciation, amortization and accretion |  |  |  | (915) |
Loss on impairment of intangible assets |  |  |  | (3) |
Loss on asset disposals, net |  |  |  | (26) |
Gain on sale of business and other exit costs, net |  |  |  | 1 |
Equity earnings of unconsolidated entities |  |  |  | 158 |
Interest and dividend income |  |  |  | 8 |
Interest expense |  |  |  | (156) |
Income before income taxes |  |  |  | $ | 125 |
Other segment disclosures |  |  |  |  |  |  |
Year Ended or as of December 31, 2022 | UScellular Wireless | UScellular Towers | TDS Telecom | Segment Total | UScellular | All Other 1 | TDS Consolidated Total
Depreciation, amortization and accretion | $ | (655) |  | $ | (45) |  | $ | (215) |  | $ | (915) |  |  | $ | (14) |  | $ | (929) |
Loss on impairment of intangible assets | (3) |  | — |  | — |  | (3) |  |  | — |  | (3) |
Loss on asset disposals, net | (19) |  | — |  | (7) |  | (26) |  |  | (1) |  | (27) |
Gain on sale of business and other exit costs, net | 1 |  | — |  | — |  | 1 |  |  | — |  | 1 |
Investments in unconsolidated entities 3 |  |  | 4 |  | 4 |  | 452 |  | 39 |  | 495 |
Total assets 4 |  |  | 3,056 |  | 3,056 |  | 11,119 |  | 375 |  | 14,550 |
Capital expenditures | $ | 689 |  | $ | 28 |  | $ | 556 |  | $ | 1,273 |  |  | $ | 12 |  | $ | 1,285 |
Numbers may not foot due to rounding. 1"All Other" represents TDS' non-reportable other business activities that do not meet the quantitative thresholds for being a reportable segment. 2 The significant segment expense categories and amounts align with the segment-level information that is regularly provided to the chief operating decision maker. Intersegment expenses are included within the amounts shown. 3 This item is not included in the evaluation of operating performance of the Wireless and Towers segments, and therefore is reported as "UScellular". 4 Assets are not provided at the individual segment level for Wireless and Towers, and therefore is reported for "UScellular". The UScellular segments operate under a common capital structure, and management has historically considered its assets collectively as part of a combined wireless network.

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