Divestitures	9 Months Ended
Divestitures	Sep. 30, 2024
Divestitures [Abstract]
Divestitures	Note 7 Divestitures UScellular On August 4, 2023, TDS and UScellular announced that the Boards of Directors of both companies decided to initiate a process to explore a range of strategic alternatives for UScellular. On May 28, 2024, UScellular announced that its Board of Directors unanimously approved the execution of a Securities Purchase Agreement (Securities Purchase Agreement) by and among TDS, UScellular, T-Mobile US, Inc. (T-Mobile) and USCC Wireless Holdings, LLC, pursuant to which, among other things, UScellular has agreed to sell its wireless operations and select spectrum assets to T-Mobile for a purchase price, subject to adjustment as specified in the Securities Purchase Agreement, of $4,400 million, which is payable in a combination of cash and the assumption of up to approximately $2,000 million in debt. The Securities Purchase Agreement also contemplates, among other things, a Short-Term Spectrum Manager Lease Agreement that will become effective at the closing date, which provides T-Mobile with an exclusive license to use certain UScellular spectrum assets at no cost for up to one-year for the purpose of providing continued, uninterrupted service to customers. UScellular expects to present the wireless operations and select spectrum assets sold to T-Mobile as discontinued operations if and when the accounting criteria is met. The transactions are expected to close in mid-2025, subject to the receipt of regulatory approvals and the satisfaction of customary closing conditions. On October 17, 2024, UScellular, and certain subsidiaries of UScellular, entered into a License Purchase Agreement (Verizon Purchase Agreement) with Verizon Communications Inc. (Verizon) to sell certain AWS, Cellular and PCS wireless spectrum licenses and agreed to grant Verizon certain rights to lease such licenses prior to the transaction close for total proceeds of $1,000 million. As of September 30, 2024, UScellular's book value of the wireless spectrum licenses to be sold was $586 million. The transaction is subject to regulatory approval and other customary closing conditions, and is contingent on the closing of the T-Mobile transaction and the termination of the T-Mobile Short-Term Spectrum Manager Lease Agreement. The strategic alternatives review process is ongoing as UScellular seeks to opportunistically monetize its spectrum assets that are not subject to the Securities Purchase Agreement or the Verizon Purchase Agreement. TDS incurred third-party expenses related to the announced transactions and strategic alternatives review of $11 million and $43 million for the three and nine months ended September 30, 2024, respectively, and $4 million for both the three and nine months ended September 30, 2023, which are included in Selling, general and administrative expenses. UScellular also assessed whether the execution of the Securities Purchase Agreement constituted a significant change in the way it expects to operate its long-lived assets. Specifically, given the Securities Purchase Agreement, and UScellular's plan to divest of its wireless operations, UScellular expects to generate cash flows from the wireless operations separately from the retained business. Therefore, in the second quarter of 2024, UScellular bifurcated the historical single asset group into two asset groups – wireless and towers. At that time, UScellular also assessed whether an impairment test of its long-lived assets was required and determined that there was no triggering event present due to the factors just described that required a recoverability test to be performed. In the third quarter of 2024, UScellular re-assessed whether an impairment test of its long-lived assets was required considering the wireless spectrum license impairment and determined that there was no triggering event that required a recoverability test to be performed. As part of the transaction, UScellular entered into a Put/Call Agreement with T-Mobile whereby T-Mobile has the right to call certain spectrum assets and UScellular has the right to put certain spectrum assets to T-Mobile for an aggregate agreed upon price of $106 million. The call option notice period started on May 24, 2024, and the put exercise period starts at the close of the broader transaction. There was no cash exchanged at the inception of the Put/Call Agreement. All license transfers pursuant to any put/call are subject to Federal Communications Commission (FCC) approval. UScellular accounts for this instrument as a net written call option and records such option at fair value each reporting period unless/until such option is exercised or terminated. UScellular estimated the fair value of the net written call option at $6 million as of September 30, 2024, which was recorded to Other deferred liabilities and credits in the Consolidated Balance Sheet. The change in fair value is recorded to (Gain) loss on license sales and exchanges, net in the Consolidated Statement of Operations. TDS Telecom On May 31, 2024, TDS Telecom entered into an agreement with a third-party to sell certain incumbent markets in Virginia for a purchase price of $31 million. The assets and liabilities of the markets being sold have been classified as held for sale in the Consolidated Balance Sheet as of September 30, 2024. The transaction is expected to close in the fourth quarter of 2024, subject to customary closing conditions. On August 19, 2024, TDS Telecom entered into agreements with third-parties to sell certain assets and liabilities of its cable operations in Texas for a price of $26 million. The assets and liabilities of the operations being sold have been classified as held for sale in the Consolidated Balance Sheet as of September 30, 2024. The transaction is expected to close in the fourth quarter of 2024, subject to customary closing conditions. Other On May 31, 2024, TDS entered into an agreement to sell its HMS operations, which operated through wholly-owned subsidiaries OneNeck IT Solutions LLC and OneNeck Data Center Holdings LLC to a third-party for a purchase price, subject to adjustment as specified in the agreement, of $101 million, with an additional $9 million of contingent proceeds. The transaction closed on September 3, 2024, and TDS received proceeds of $91 million and recognized a book gain of $12 million in (Gain) loss on sale of business and other exit costs, net in the Consolidated Statement of Operations.