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v3.25.3

Long-Term Debt and Credit Facilities - Long Term Debt (Details) | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) subsidiary | Dec. 31, 2024 USD ($) | Sep. 29, 2025 USD ($)
Debt Disclosure [Abstract] |  |  |
Number of subsidiaries | subsidiary | 3 |  |
Long-term Debt and Credit Facilities |  |  |
Finance lease and other obligations | $ 233,000,000 | $ 254,000,000 |
Unamortized discounts, net | (404,000,000) | (395,000,000) |
Unamortized debt issuance costs | (152,000,000) | (217,000,000) |
Total long-term debt | 17,672,000,000 | 17,906,000,000 |
Less current maturities | (94,000,000) | (412,000,000) |
Long-term debt, excluding current maturities | $ 17,578,000,000 | 17,494,000,000 |
Line of Credit | Series A Revolving Credit Facility |  |  |
Long-term Debt and Credit Facilities |  |  |
Basis spread (as a percent) | 4.00% |  |
Long-term debt, gross | $ 0 | 0 |
Line of Credit | Series B Revolving Credit Facility |  |  |
Long-term Debt and Credit Facilities |  |  |
Basis spread (as a percent) | 6.00% |  |
Long-term debt, gross | $ 0 | 0 |
Term Loan | Term Loan A |  |  |
Long-term Debt and Credit Facilities |  |  |
Basis spread (as a percent) | 6.00% |  |
Long-term debt, gross | $ 343,000,000 | $ 357,000,000 |
Long-term debt, weighted average interest rate | 10.316% | 10.573% |
Term Loan | Term Loan B-1 |  |  |
Long-term Debt and Credit Facilities |  |  |
Basis spread (as a percent) | 2.35% |  |
Long-term debt, gross | $ 1,594,000,000 | $ 1,606,000,000 |
Long-term debt, weighted average interest rate | 6.78% | 7.037% |
Term Loan | Term Loan B-1 | Level 3 Financing, Inc. |  |  |
Long-term Debt and Credit Facilities |  |  |
Basis spread (as a percent) |  | 6.56% |
Long-term debt, gross | $ 0 | $ 1,199,000,000 |
Long-term debt, weighted average interest rate |  | 11.133% |
Term Loan | Term Loan B-2 |  |  |
Long-term Debt and Credit Facilities |  |  |
Basis spread (as a percent) | 2.35% |  |
Long-term debt, gross | $ 1,594,000,000 | $ 1,606,000,000 |
Long-term debt, weighted average interest rate | 6.78% | 7.037% |
Term Loan | Term Loan B-2 | Level 3 Financing, Inc. |  |  |
Long-term Debt and Credit Facilities |  |  |
Basis spread (as a percent) |  | 6.56% |
Long-term debt, gross | $ 0 | $ 1,199,000,000 |
Long-term debt, weighted average interest rate |  | 11.133% |
Term Loan | Term Loan B |  |  |
Long-term Debt and Credit Facilities |  |  |
Basis spread (as a percent) | 2.25% |  |
Long-term debt, gross | $ 56,000,000 | $ 56,000,000 |
Long-term debt, weighted average interest rate | 6.68% | 6.937% |
Term Loan | Term Loan B-4 |  |  |
Long-term Debt and Credit Facilities |  |  |
Basis spread (as a percent) | 3.25% |  |
Term Loan | Term Loan B-4 | Level 3 Financing, Inc. |  |  |
Long-term Debt and Credit Facilities |  |  |
Basis spread (as a percent) | 3.25% |  |
Long-term debt, gross | $ 2,400,000,000 | $ 0 | $ 2,400,000,000
Long-term debt, weighted average interest rate | 7.566% |  |
Term Loan | Tranche B 2027 Term Loan | Level 3 Financing, Inc. |  |  |
Long-term Debt and Credit Facilities |  |  |
Basis spread (as a percent) | 1.75% |  |
Long-term debt, gross | $ 12,000,000 | $ 12,000,000 |
Long-term debt, weighted average interest rate | 6.18% | 6.437% |
Senior Notes | Superpriority Notes Due on Various Dates |  |  |
Long-term Debt and Credit Facilities |  |  |
Long-term debt, gross | $ 1,247,000,000 | $ 1,247,000,000 |
Senior Notes | Superpriority Notes Due on Various Dates | Minimum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 4.125% |  |
Senior Notes | Superpriority Notes Due on Various Dates | Maximum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 10.00% |  |
Senior Notes | First Lien Notes | Level 3 Financing, Inc. |  |  |
Long-term Debt and Credit Facilities |  |  |
Long-term debt, gross | $ 4,425,000,000 | 3,846,000,000 |
Senior Notes | First Lien Notes | Level 3 Financing, Inc. | Minimum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 6.875% |  |
Senior Notes | First Lien Notes | Level 3 Financing, Inc. | Maximum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 7.00% |  |
Senior Notes | Second Lien Notes | Level 3 Financing, Inc. |  |  |
Long-term Debt and Credit Facilities |  |  |
Long-term debt, gross | $ 2,229,000,000 | 2,579,000,000 |
Senior Notes | Second Lien Notes | Level 3 Financing, Inc. | Minimum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 3.875% |  |
Senior Notes | Second Lien Notes | Level 3 Financing, Inc. | Maximum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 4.875% |  |
Senior Notes | Senior Notes Maturing 2028-2042 |  |  |
Long-term Debt and Credit Facilities |  |  |
Long-term debt, gross | $ 1,296,000,000 | 1,428,000,000 |
Senior Notes | Senior Notes Maturing 2028-2042 | Minimum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 4.50% |  |
Senior Notes | Senior Notes Maturing 2028-2042 | Maximum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 7.65% |  |
Senior Notes | Senior Notes Maturing 2028-2029 | Level 3 Financing, Inc. |  |  |
Long-term Debt and Credit Facilities |  |  |
Long-term debt, gross | $ 894,000,000 | 964,000,000 |
Senior Notes | Senior Notes Maturing 2028-2029 | Level 3 Financing, Inc. | Minimum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 3.625% |  |
Senior Notes | Senior Notes Maturing 2028-2029 | Level 3 Financing, Inc. | Maximum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 4.25% |  |
Senior Notes | Senior Notes Maturing 2030-2057 | Qwest Corporation |  |  |
Long-term Debt and Credit Facilities |  |  |
Long-term debt, gross | $ 1,736,000,000 | 1,973,000,000 |
Senior Notes | Senior Notes Maturing 2030-2057 | Qwest Corporation | Minimum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 6.50% |  |
Senior Notes | Senior Notes Maturing 2030-2057 | Qwest Corporation | Maximum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 7.75% |  |
Senior Notes | Senior Notes Maturing 2028-2031 | Qwest Capital Funding, Inc. |  |  |
Long-term Debt and Credit Facilities |  |  |
Long-term debt, gross | $ 169,000,000 | $ 192,000,000 |
Senior Notes | Senior Notes Maturing 2028-2031 | Qwest Capital Funding, Inc. | Minimum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 6.875% |  |
Senior Notes | Senior Notes Maturing 2028-2031 | Qwest Capital Funding, Inc. | Maximum |  |  |
Long-term Debt and Credit Facilities |  |  |
Stated interest rate | 7.75% |  |

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