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v3.25.3

Segment Information - Segment Results and Operating Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Operating revenues by products and services |  |  |  |
Segment revenue | $ 3,087 | $ 3,221 | $ 9,361 | $ 9,779
Cost of services and products | 1,700 | 1,692 | 5,011 | 4,997
Business |  |  |  |
Operating revenues by products and services |  |  |  |
Segment revenue | 2,456 | 2,537 | 7,470 | 7,706
Cost of services and products | 691 | 766 | 2,120 | 2,265
Headcount costs | 294 | 300 | 874 | 948
Non-headcount costs | 363 | 371 | 1,050 | 1,061
Total segment expense | 1,348 | 1,437 | 4,044 | 4,274
Total segment adjusted EBITDA | 1,108 | 1,100 | 3,426 | 3,432
Mass Markets |  |  |  |
Operating revenues by products and services |  |  |  |
Segment revenue | 631 | 684 | 1,891 | 2,073
Cost of services and products | 13 | 16 | 40 | 53
Headcount costs | 142 | 162 | 434 | 484
Non-headcount costs | 129 | 149 | 372 | 420
Total segment expense | 284 | 327 | 846 | 957
Total segment adjusted EBITDA | $ 347 | $ 357 | $ 1,045 | $ 1,116

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