Divestitures of the Latin American, ILEC and EMEA Businesses	12 Months Ended
	Dec. 31, 2023
Discontinued Operations and Disposal Groups [Abstract]
Divestitures of the Latin American, ILEC and EMEA Businesses	Divestitures of the Latin American, ILEC and EMEA Businesses Latin American Business On August 1, 2022, affiliates of Level 3 Parent, LLC, an indirect wholly-owned subsidiary of Lumen Technologies, Inc., sold Lumen’s Latin American business pursuant to a definitive agreement dated July 25, 2021, for pre-tax cash proceeds of approximately $2.7 billion. For the year ended December 31, 2022, we recorded a $597 million net pre-tax gain on disposal associated with the sale of our Latin American business. This gain is reflected as operating income within the consolidated statements of operations. In connection with the sale, we entered into a transition services agreement under which we provide the purchaser various support services. In addition, Lumen and the purchaser entered into commercial agreements whereby they provide each other various network and other commercial services. In addition, we agreed to indemnify the purchaser for certain matters for which future cash payments by Lumen could be required. Lumen has estimated the fair value of these indemnifications to be $86 million, which is included in other long-term liabilities in our consolidated balance sheet and has reduced our gain on the sale accordingly. The Latin American business was included in our continuing operations and classified as assets and liabilities held for sale on our consolidated balance sheets through the closing of the transaction on August 1, 2022. As a result of closing the transaction, we derecognized net assets of $1.9 billion, primarily made up of (i) property, plant and equipment, net of accumulated depreciation, of $1.7 billion, (ii) goodwill of $245 million, (iii) other intangible assets, net of accumulated amortization, of $140 million, and (iv) deferred income tax liabilities, net, of $154 million. In addition, we reclassified $112 million of realized loss on foreign currency translation, net of tax, to partially offset the gain on sale of our Latin American business. ILEC Business On October 3, 2022, we and certain of our affiliates sold the portion of our incumbent local exchange ("ILEC") business primarily conducted within 20 Midwestern and Southeastern states to affiliates of funds advised by Apollo Global Management, Inc. In exchange, we received $7.5 billion of consideration, which was reduced by approximately $0.4 billion of closing adjustments and partially paid through purchaser's assumption of approximately $1.5 billion of our long-term consolidated indebtedness, resulting in pre-tax cash proceeds of approximately $5.6 billion. For the year ended December 31, 2022, we recorded a $176 million net pre-tax gain on disposal associated with the sale of our ILEC business. This gain is reflected as operating income within the consolidated statements of operations. In connection with the sale, we entered into a transition services agreement under which we provide the purchaser various support services. In addition, Lumen and the purchaser entered into commercial agreements whereby they provide each other various network and other commercial services. Under these agreements, we committed to ordering services of approximately $373 million from the purchaser over a period of three years and the purchaser has committed to ordering services of approximately $67 million from us over a period of three years. We indemnified the purchaser for certain matters for which, at the time of closing, future cash payments by Lumen were expected. Lumen had estimated the fair value of these indemnifications to be $89 million, which was included in other current liabilities in our consolidated balance sheet as of December 31, 2022 and increased our income tax expense accordingly as of December 31, 2022. As of the first quarter of 2023, the full $89 million payments had been made. The ILEC business was included in our continuing operations and classified as assets and liabilities held for sale on our consolidated balance sheets through the closing of the transaction on October 3, 2022. As a result of closing the transaction, we derecognized net assets of $4.8 billion, primarily made up of (i) property, plant and equipment, net of accumulated depreciation, of $3.6 billion, (ii) goodwill of $2.6 billion and (iii) long-term debt, net of discounts, of $1.4 billion. In addition, we reclassified $403 million of net actuarial loss and prior service credit related to the Lumen Pension Plan, net of tax, conveyed to the purchaser to partially offset the gain on the sale of our ILEC business. EMEA Business On November 1, 2023, affiliates of Level 3 Parent, LLC, sold Lumen's operations in Europe, the Middle East and Africa (the "EMEA business") to Colt Technology Services Group Limited, a portfolio company of Fidelity Investments, for pre-tax cash proceeds of $1.7 billion after certain closing adjustments and transaction costs. This consideration is further subject to other post-closing adjustments and indemnities set forth in the purchase agreement, as amended and supplemented to date. In connection with the sale, we entered into a transition services agreement under which we provide the purchaser various support services. In addition, Lumen and the purchaser entered into commercial agreements whereby they provide each other various network and other commercial services. The classification of the EMEA business as held for sale was considered an event or change in circumstance which requires an assessment of the goodwill of the disposal group for impairment each reporting period until disposal. We performed a pre-classification and post-classification goodwill impairment test of the disposal group as described further in Note 3—Goodwill, Customer Relationships and Other Intangible Assets. As a result of our impairment tests, we determined the EMEA business disposal group was impaired, resulting in a non-cash, non-tax-deductible goodwill impairment charge of $43 million in the fourth quarter of 2022. We evaluated the recoverability of the carrying value of the assets and liabilities held for sale relative to the agreed upon sales price, adjusted for costs to sell, and recorded an estimated loss on disposal of $660 million during the year ended December 31, 2022 in the consolidated statement of operations and a valuation allowance included in assets held for sale on the consolidated balance sheet as of December 31, 2022. For the year ended December 31, 2023, we recorded a $102 million net loss on disposal associated with the sale of our EMEA business. This loss is reflected as operating expense within the consolidated statements of operations. The EMEA business was included in our continuing operations and classified as assets and liabilities held for sale on our consolidated balance sheets through the closing of the transaction on November 1, 2023. As a result of closing the transaction, we derecognized net assets of $2.1 billion, primarily made up of (i) property, plant and equipment, net of accumulated depreciation, of $2.0 billion and (ii) customer relationships and other intangible assets, net of accumulated amortization of $107 million. In addition, we reclassified $382 million of realized loss on foreign currency translation, net of tax, with an offset to the valuation allowance and loss on sale of the EMEA business. Other Information We do not believe these divestiture transactions represented a strategic shift for Lumen. Therefore, the divested businesses discussed above did not meet the criteria to be classified as discontinued operations. As a result, we continued to report our operating results for the Latin American, ILEC and EMEA businesses in our consolidated operating results through their respective disposal dates of August 1, 2022, October 3, 2022, and November 1, 2023, respectively.