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Leases (Tables) | 12 Months Ended
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Dec. 31, 2024
Leases [Abstract] |
Components of lease expense | The following table shows the components of lease cost included in the Consolidated Statement of Operations:
Year Ended December 31, | 2024 |  | 2023 |  | 2022
(Dollars in millions) |  |  |  |  |
Operating lease cost | $ | 213 |  |  | $ | 207 |  |  | $ | 206 |
Variable lease cost | 14 |  |  | 13 |  |  | 12 |
Total | $ | 227 |  |  | $ | 220 |  |  | $ | 218 |
Supplemental cash flow information related to leases | The following table shows supplemental cash flow information related to lease activities:
Year Ended December 31, | 2024 |  | 2023 |  | 2022
(Dollars in millions) |  |  |  |  |
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |  |
Operating cash flows from operating leases | $ | 224 |  |  | $ | 213 |  |  | $ | 204 |
Right-of-use assets obtained in exchange for lease obligations: |  |  |  |  |
Operating leases | $ | 178 |  |  | $ | 168 |  |  | $ | 125 |
Schedule of weighted average remaining lease term and weighted average discount rate related to leases | The table below shows a weighted-average analysis for lease terms and discount rates for operating leases:
December 31, | 2024 |  | 2023
Weighted Average Remaining Lease Term | 13 years |  | 12 years
Weighted Average Discount Rate | 4.7 | % |  | 4.3 | %
Maturities of lease liabilities | The maturities of lease liabilities are as follows:
| Operating Leases |  |  |
(Dollars in millions) |  |  |  |
2025 | $ | 195 |  |  |  |
2026 | 168 |  |  |  |
2027 | 143 |  |  |  |
2028 | 121 |  |  |  |
2029 | 91 |  |  |  |
Thereafter | 720 |  |  |  |
Total lease payments 1 | $ | 1,438 |  |  |  |
Less: Imputed interest | 418 |  |  |  |
Present value of lease liabilities | $ | 1,020 |  |  |  |
1 Lease payments exclude $27 million of legally binding lease payments for leases signed but not yet commenced.
Lease income | The following table shows the components of lease income which are included in Service revenues in the Consolidated Statement of Operations:
Year Ended December 31, | 2024 |  | 2023 |  | 2022
(Dollars in millions) |  |  |  |  |
Operating lease income | $ | 121 |  |  | $ | 127 |  |  | $ | 120 |
Maturities of expected lease revenues | The maturities of expected lease payments to be received are as follows:
| Operating Leases
(Dollars in millions) |
2025 | $ | 89 |
2026 | 79 |
2027 | 61 |
2028 | 47 |
2029 | 27 |
Thereafter | 19 |
Total future lease maturities | $ | 322 |

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