0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (UNAUDITED) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONSOLIDATED BALANCE SHEETS (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' (DEFICIT) EQUITY (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Background link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Divestiture link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Intangible Assets link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Revenue Recognition link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Long-Term Debt and Credit Facilities link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Severance link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Employee Benefits link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Loss Per Common Share link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Fair Value of Financial Instruments link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Segment Information link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Commitments, Contingencies and Other Items link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Other Financial Information link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Accumulated Other Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Labor Union Contracts link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Subsequent Event link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Background (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Divestiture (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Revenue Recognition (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Long-Term Debt and Credit Facilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Severance (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Employee Benefits (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Loss Per Common Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Fair Value of Financial Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Other Financial Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Accumulated Other Comprehensive Loss (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Background (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Divestiture - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Divestiture - Balance Sheet at Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Intangible Assets - Schedule of Intangible Assets, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Intangible Asset - Schedule of Amortization Expense for Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Revenue Recognition - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Revenue Recognition - Schedule of Revenue by Segment, Sales Channel and Product Category (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Revenue Recognition - Schedule of Operating Lease Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Revenue Recognition - Schedule of Contract with Customer, Asset and Liability (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Revenue Recognition - Remaining Performance Obligation (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Revenue Recognition - Remaining Performance Obligation (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Revenue Recognition - Schedule of Capitalized Contract Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Long-Term Debt and Credit Facilities - Long Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Long-Term Debt and Credit Facilities - Long Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Long-Term Debt and Credit Facilities - Long-Term Debt Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Long-Term Debt and Credit Facilities - 2026 Debt Transaction (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Long-Term Debt and Credit Facilities - 2026 Debt Transactions - Senior Secured Notes Issuance and Second Lien Tender Offers (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Long-Term Debt and Credit Facilities - 2026 Debt Transactions - Repurchases of Debt Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Long-Term Debt and Credit Facilities - Lumen Credit Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Long-Term Debt and Credit Facilities - Level 3 Financing Credit Agreement (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Long-Term Debt and Credit Facilities - Revolving Letters of Credit (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Long-Term Debt and Credit Facilities - Certain Guarantees and Security Interests (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Long-Term Debt and Credit Facilities - Covenants and Guarantees (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Long-Term Debt and Credit Facilities - Subsequent Event - Revolving Credit Agreement and Exchange Offers (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Long-Term Debt and Credit Facilities - Supplemental Indentures and Lumen Parent Guarantee (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Severance - (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Employee Benefits - Schedule of Net Periodic Benefit (Income) Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Employee Benefits - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Loss Per Common Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Fair Value of Financial Instruments - Carrying Amounts (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Segment Information - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Segment Information - Schedule of Segment Results (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Segment Information - Revenue to EBITDA (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Segment Information - Net Loss to EBITDA (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Commitments, Contingencies and Other Items (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Other Financial Information - Schedule of Other Current Assets, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Other Financial Information - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Accumulated Other Comprehensive Loss - Schedule of AOCI Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Accumulated Other Comprehensive Loss - Schedule of Reclassifications (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Labor Union Contracts (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Subsequent Event (Details) link:presentationLink link:calculationLink link:definitionLink