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v3.25.2

Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Disaggregation of revenue |  |  |  |
Revenue from contracts with customers | $ 888 | $ 902 | $ 1,751 | $ 1,826
Operating lease income | 28 | 25 | 56 | 51
Total operating revenues | 916 | 927 | 1,807 | 1,877
Transferred over time |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from contracts with customers | 708 | 718 | 1,421 | 1,446
Transferred over time | Retail service |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from contracts with customers | 652 | 666 | 1,312 | 1,344
Transferred over time | Other service |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from contracts with customers | 56 | 52 | 109 | 102
Transferred at point in time | Equipment sales |  |  |  |
Disaggregation of revenue |  |  |  |
Revenue from contracts with customers | $ 180 | $ 184 | $ 330 | $ 380

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