Accounting Changes and Recent Accounting Pronouncements (Policies)	9 Months Ended
Sep. 30, 2025
Accounting Changes and Error Corrections [Abstract]
Basis of Presentation	The accompanying condensed consolidated financial statements have been prepared in accordance with U.S. GAAP and with the instructions to the Quarterly Report on Form 10-Q and Article 10 of Regulation S-X for interim financial information. Accordingly, these financial statements do not include all of the information required by U.S. GAAP or SEC rules and regulations for complete financial statements. In the opinion of management, these financial statements reflect all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the results of operations for the interim periods presented. The results of operations for any interim period are not necessarily indicative of results for the full year. These condensed consolidated financial statements should be read in conjunction with our consolidated financial statements and notes thereto included in our 2024 Form 10-K. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Estimates and assumptions are used in accounting for, among other things, the valuation of acquisition-related assets and liabilities, expected credit losses, programming and copyright expenses, deferred income taxes and related valuation allowances, loss contingencies, fair value measurements, impairment assessments, capitalization of internal costs associated with construction and installation activities, useful lives of long-lived assets and actuarial liabilities associated with certain benefit plans. Actual results could differ from those estimates. Certain prior-period amounts have been reclassified to conform to the current period presentation.
Recent Accounting Pronouncements	Recent Accounting Pronouncements ASU 2023-09 In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (ASU 2023-09), which was issued to enhance transparency of income tax disclosures, primarily by requiring consistent categories and disaggregated information about an entity’s effective tax rate reconciliation and disaggregated jurisdictional information on income taxes paid. The standard also eliminates certain existing requirements related to uncertain tax positions and unrecognized deferred tax liabilities. ASU 2023-09 is effective for annual periods beginning after December 15, 2024 with early adoption permitted. We are currently evaluating the impact this standard will have on the footnotes to our consolidated financial statements. ASU 2024-03 In November 2024, the FASB issued ASU No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-04): Disaggregation of Income Statement Expenses (ASU 2024-03), which requires more detailed disclosure in the notes to the financial statements about the types of expenses in commonly presented expense captions. In each annual and interim reporting period, entities are required to (i) disclose the amounts of (a) purchases of inventory, (b) employee compensation, (c) depreciation and (d) intangible asset amortization included in each expense line item within continuing operations that is presented on the statement of operations, (ii) include certain amounts that are already required to be disclosed under current U.S. GAAP in the same disclosure as the other disaggregation requirements, (iii) disclose a qualitative description of the amounts remaining in each expense line item within continuing operations that are not separately quantified and (iv) disclose the total amount of selling expenses and, in annual reporting periods, an entity’s definition of selling expenses. In January 2025, the FASB issued ASU No. 2025-01, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-04): Clarifying the Effective Date (ASU 2025-01). ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027 with early adoption permitted, as clarified in ASU 2025-01. We are currently evaluating the impact this standard will have on our consolidated financial statements. ASU 2025-05 In July 2025, the FASB issued ASU No. 2025-05, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets (ASU 2025-05), which introduces a practical expedient for all entities and an accounting policy election for all entities, other than public business entities, that elect the practical expedient to simplify the estimation of expected credit losses for current accounts receivable and current contract assets. Entities electing the practical expedient can assume that current conditions as of the balance sheet date do not change for the remaining life of the asset. Entities must disclose whether they have elected to use the practical expedient and, if so, whether they have also applied the accounting policy election. ASU 2025-05 is effective for annual reporting periods beginning after December 15, 2025, and interim periods within those annual reporting periods, with early adoption permitted. We are currently evaluating the impact this standard will have on our consolidated financial statements. ASU 2025-06 In September 2025, the FASB issued ASU No. 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40) (ASU 2025-06), which provides accounting guidance to modernize the accounting for internal-use software costs. The amendments replace the prior stage-based model with a principles-based approach, removing all references to project stages and instead focusing on the two remaining criteria for capitalization, being i) management has authorized and committed to the funding for the software project and ii) it is probable a project will be completed and used as intended. Until both of these criteria are met, all software development costs should be expensed as incurred. ASU 2025-06 is effective for annual and interim periods beginning after December 15, 2027, with early adoption permitted. Entities may apply the amendments prospectively, retrospectively, or using a modified retrospective approach. We are currently evaluating the impact of ASU 2025-06 on our consolidated financial statements.
Recurring and Non-Recurring Fair Value Measurements	Recurring Fair Value Measurements Derivatives In order to manage our interest rate and foreign currency exchange risk, we have entered into various derivative instruments, as further described in note 6. We use the fair value method to account for most of our derivative instruments. The recurring fair value measurements of these derivative instruments are determined using discounted cash flow models. Most of the inputs to these discounted cash flow models consist of, or are derived from, observable Level 2 data for substantially the full term of these derivative instruments. This observable data mostly includes interest rate futures and swap rates, which are retrieved or derived from available market data. Although we may extrapolate or interpolate this data, we do not otherwise alter this data in performing our valuations. We incorporate a credit risk valuation adjustment in our fair value measurements to estimate the impact of both our own nonperformance risk and the nonperformance risk of our counterparties. Our and our counterparties’ credit spreads represent our most significant Level 3 inputs, and these inputs are used to derive the credit risk valuation adjustments with respect to these instruments. As we would not expect changes in our or our counterparties’ credit spreads to have a significant impact on the valuations of these instruments, we have determined that these valuations fall under Level 2 of the fair value hierarchy. Our credit risk valuation adjustments with respect to our interest rate derivative contracts are further explained in note 6. Non-recurring Fair Value Measurements Fair value measurements may also be used for purposes of non-recurring valuations performed in connection with our acquisition accounting and impairment assessments. During the nine months ended September 30, 2025, we performed non-recurring valuations in connection with certain impairment assessments at Liberty Puerto Rico, as further discussed below. During the three and nine months ended September 30, 2025, we did not perform any non-recurring valuations in connection with acquisition accounting. During the three and nine months ended September 30, 2024, we performed certain nonrecurring valuations related to the preliminary acquisition accounting for the LPR Acquisition and impairment assessments. For additional information related to the LPR Acquisition, see note 4. Spectrum License Intangible Assets During the second quarter of 2025, and in response to the cumulative impact of challenges stemming from the migration of customers acquired from AT&T to Liberty Puerto Rico’s mobile network and other various network challenges that impacted these mobile customers, including a slower than expected recovery, we concluded that a triggering event occurred requiring an assessment of the fair value of our spectrum license intangible asset at Liberty Puerto Rico. We used a market approach for purposes of the quantitative impairment assessment to value our owned spectrum license intangible assets at Liberty Puerto Rico using a range of values established largely through industry benchmarks, FCC auction data, and precedent transactions, which falls under Level 3 of the fair value hierarchy. Based on this valuation the fair value of the owned spectrum assets at Liberty Puerto Rico was less than the respective carrying value, and as a result, we recorded an impairment loss of $494 million during the nine months ended September 30, 2025. The impairment is reflected in impairment, restructuring and other operating items, net, in the condensed consolidated statements of operations, the carrying value of which was $777 million after the impairment loss. The impairment loss was driven by the lower fair value, primarily attributed to a result of challenges related to the operationalization of this spectrum. Goodwill Impairment Assessment During the third quarter of 2024, we completed our annual goodwill impairment assessment. For this assessment, we used an income approach to determine the estimated fair values of our reporting units. Under this approach, we utilized a discounted cash flow model as the valuation technique to estimate the fair values of the reporting units from a market participant’s perspective. This approach uses certain inputs and assumptions that require estimates and judgments, including forecasted cash flows and appropriate discount rates. Forecasts of future cash flows are largely based on our assumptions using Level 3 inputs, which we consider to be consistent with a market participant’s approach. We used the weighted-average cost of capital for each reporting unit as the basis for the discount rate to establish the present value of the expected cash flows for the respective reporting unit. The inputs for our weighted average cost of capital calculations include Level 2 and Level 3 inputs, generally derived from third-party pricing services. Based upon the results of the aforementioned analysis, we recorded a $501 million impairment of goodwill at our Liberty Puerto Rico reporting unit, which is included in impairment, restructuring and other operating items, net, in our condensed consolidated statement of operations. This impairment was mainly driven by declines in revenue, primarily from mobile subscriber losses, increased bad debt and other adverse impacts largely associated with (i) the migration of customers acquired from AT&T to our mobile network and (ii) various network challenges that have impacted these mobile customers.

Accounting Changes and Recent Accounting Pronouncements (Policies)

9 Months Ended

Sep. 30, 2025

Accounting Changes and Error Corrections [Abstract]

The accompanying condensed consolidated financial statements have been prepared in accordance with U.S. GAAP and with the instructions to the Quarterly Report on Form 10-Q and Article 10 of Regulation S-X for interim financial information. Accordingly, these financial statements do not include all of the information required by U.S. GAAP or SEC rules and regulations for complete financial statements. In the opinion of management, these financial statements reflect all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the results of operations for the interim periods presented. The results of operations for any interim period are not necessarily indicative of results for the full year. These condensed consolidated financial statements should be read in conjunction with our consolidated financial statements and notes thereto included in our 2024 Form 10-K.

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Estimates and assumptions are used in accounting for, among other things, the valuation of acquisition-related assets and liabilities, expected credit losses, programming and copyright expenses, deferred income taxes and related valuation allowances, loss contingencies, fair value measurements, impairment assessments, capitalization of internal costs associated with construction and installation activities, useful lives of long-lived assets and actuarial liabilities associated with certain benefit plans. Actual results could differ from those estimates. Certain prior-period amounts have been reclassified to conform to the current period presentation.

Recent Accounting Pronouncements

ASU 2023-09

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (ASU 2023-09), which was issued to enhance transparency of income tax disclosures, primarily by requiring consistent categories and disaggregated information about an entity’s effective tax rate reconciliation and disaggregated jurisdictional information on income taxes paid. The standard also eliminates certain existing requirements related to uncertain

tax positions and unrecognized deferred tax liabilities. ASU 2023-09 is effective for annual periods beginning after December 15, 2024 with early adoption permitted. We are currently evaluating the impact this standard will have on the footnotes to our consolidated financial statements.

ASU 2024-03

In November 2024, the FASB issued ASU No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-04): Disaggregation of Income Statement Expenses (ASU 2024-03), which requires more detailed disclosure in the notes to the financial statements about the types of expenses in commonly presented expense captions. In each annual and interim reporting period, entities are required to (i) disclose the amounts of (a) purchases of inventory, (b) employee compensation, (c) depreciation and (d) intangible asset amortization included in each expense line item within continuing operations that is presented on the statement of operations, (ii) include certain amounts that are already required to be disclosed under current U.S. GAAP in the same disclosure as the other disaggregation requirements, (iii) disclose a qualitative description of the amounts remaining in each expense line item within continuing operations that are not separately quantified and (iv) disclose the total amount of selling expenses and, in annual reporting periods, an entity’s definition of selling expenses. In January 2025, the FASB issued ASU No. 2025-01, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-04): Clarifying the Effective Date (ASU 2025-01). ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027 with early adoption permitted, as clarified in ASU 2025-01. We are currently evaluating the impact this standard will have on our consolidated financial statements.

ASU 2025-05

In July 2025, the FASB issued ASU No. 2025-05, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets (ASU 2025-05), which introduces a practical expedient for all entities and an accounting policy election for all entities, other than public business entities, that elect the practical expedient to simplify the estimation of expected credit losses for current accounts receivable and current contract assets. Entities electing the practical expedient can assume that current conditions as of the balance sheet date do not change for the remaining life of the asset. Entities must disclose whether they have elected to use the practical expedient and, if so, whether they have also applied the accounting policy election. ASU 2025-05 is effective for annual reporting periods beginning after December 15, 2025, and interim periods within those annual reporting periods, with early adoption permitted. We are currently evaluating the impact this standard will have on our consolidated financial statements.

ASU 2025-06

In September 2025, the FASB issued ASU No. 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40) (ASU 2025-06), which provides accounting guidance to modernize the accounting for internal-use software costs. The amendments replace the prior stage-based model with a principles-based approach, removing all references to project stages and instead focusing on the two remaining criteria for capitalization, being i) management has authorized and committed to the funding for the software project and ii) it is probable a project will be completed and used as intended. Until both of these criteria are met, all software development costs should be expensed as incurred. ASU 2025-06 is effective for annual and interim periods beginning after December 15, 2027, with early adoption permitted. Entities may apply the amendments prospectively, retrospectively, or using a modified retrospective approach. We are currently evaluating the impact of ASU 2025-06 on our consolidated financial statements.

Recurring and Non-Recurring Fair Value Measurements

Recurring Fair Value Measurements

Derivatives

In order to manage our interest rate and foreign currency exchange risk, we have entered into various derivative instruments, as further described in note 6. We use the fair value method to account for most of our derivative instruments. The recurring fair value measurements of these derivative instruments are determined using discounted cash flow models. Most of the inputs to these discounted cash flow models consist of, or are derived from, observable Level 2 data for substantially the full term of these derivative instruments. This observable data mostly includes interest rate futures and swap rates, which are retrieved or derived from available market data. Although we may extrapolate or interpolate this data, we do not otherwise alter this data in performing our valuations. We incorporate a credit risk valuation adjustment in our fair value measurements to estimate the impact of both our own nonperformance risk and the nonperformance risk of our counterparties. Our and our counterparties’ credit spreads represent our most significant Level 3 inputs, and these inputs are used to derive the credit risk valuation adjustments with respect to these instruments. As we would not expect changes in our or our counterparties’ credit spreads to have a significant impact on the valuations of these instruments, we have determined that these valuations fall under Level 2 of the fair value hierarchy. Our credit risk valuation adjustments with respect to our interest rate derivative contracts are further explained in note 6.

Non-recurring Fair Value Measurements

Fair value measurements may also be used for purposes of non-recurring valuations performed in connection with our acquisition accounting and impairment assessments. During the nine months ended September 30, 2025, we performed non-recurring valuations in connection with certain impairment assessments at Liberty Puerto Rico, as further discussed below. During the three and nine months ended September 30, 2025, we did not perform any non-recurring valuations in connection with acquisition accounting. During the three and nine months ended September 30, 2024, we performed certain nonrecurring valuations related to the preliminary acquisition accounting for the LPR Acquisition and impairment assessments. For additional information related to the LPR Acquisition, see note 4.

Spectrum License Intangible Assets

During the second quarter of 2025, and in response to the cumulative impact of challenges stemming from the migration of customers acquired from AT&T to Liberty Puerto Rico’s mobile network and other various network challenges that impacted these mobile customers, including a slower than expected recovery, we concluded that a triggering event occurred requiring an assessment of the fair value of our spectrum license intangible asset at Liberty Puerto Rico.

We used a market approach for purposes of the quantitative impairment assessment to value our owned spectrum license intangible assets at Liberty Puerto Rico using a range of values established largely through industry benchmarks, FCC auction data, and precedent transactions, which falls under Level 3 of the fair value hierarchy. Based on this valuation the fair value of the owned spectrum assets at Liberty Puerto Rico was less than the respective carrying value, and as a result, we recorded an impairment loss of $494 million during the nine months ended September 30, 2025. The impairment is reflected in impairment, restructuring and other operating items, net, in the condensed consolidated statements of operations, the carrying value of which was $777 million after the impairment loss. The impairment loss was driven by the lower fair value, primarily attributed to a result of challenges related to the operationalization of this spectrum.

Goodwill Impairment Assessment

During the third quarter of 2024, we completed our annual goodwill impairment assessment. For this assessment, we used an income approach to determine the estimated fair values of our reporting units. Under this approach, we utilized a discounted cash flow model as the valuation technique to estimate the fair values of the reporting units from a market participant’s perspective. This approach uses certain inputs and assumptions that require estimates and judgments, including forecasted cash flows and appropriate discount rates. Forecasts of future cash flows are largely based on our assumptions using Level 3 inputs, which we consider to be consistent with a market participant’s approach. We used the weighted-average cost of capital for each reporting unit as the basis for the discount rate to establish the present value of the expected cash flows for the respective reporting unit. The inputs for our weighted average cost of capital calculations include Level 2 and Level 3 inputs, generally derived from third-party pricing services. Based upon the results of the aforementioned analysis, we recorded a $501 million impairment of goodwill at our Liberty Puerto Rico reporting unit, which is included in impairment, restructuring and other operating items, net, in our condensed consolidated statement of operations. This impairment was mainly driven by declines in

revenue, primarily from mobile subscriber losses, increased bad debt and other adverse impacts largely associated with (i) the migration of customers acquired from AT&T to our mobile network and (ii) various network challenges that have impacted these mobile customers.