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v3.25.2

Business Segments (Revenues by Line of Business) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Total revenues | $ 3,717 | $ 3,519 | $ 7,344 | $ 6,963
Total operating revenues | 3,763 | 3,529 | 7,399 | 6,995
Net investment gains (losses) | (46) | (10) | (55) | (32)
Operating Segments | Specialty |  |  |  |
Total revenues | 1,429 | 1,388 | 2,808 | 2,760
Operating Segments | Commercial |  |  |  |
Total revenues | 1,618 | 1,432 | 3,183 | 2,818
Operating Segments | International |  |  |  |
Total revenues | 362 | 343 | 706 | 689
Operating Segments | Life & Group |  |  |  |
Total revenues | 341 | 348 | 673 | 689
Operating Segments | Corporate & Other |  |  |  |
Total revenues | 16 | 21 | 35 | 45
Eliminations |  |  |  |
Total revenues | (3) | (3) | (6) | (6)
Management & Professional Liability | Operating Segments | Specialty |  |  |  |
Total revenues | 778 | 733 | 1,524 | 1,462
Surety | Operating Segments | Specialty |  |  |  |
Total revenues | 205 | 196 | 393 | 378
Warranty & Alternative Risks | Operating Segments | Specialty |  |  |  |
Total revenues | 446 | 459 | 891 | 920
Middle Market | Operating Segments | Commercial |  |  |  |
Total revenues | 481 | 427 | 947 | 859
Construction | Operating Segments | Commercial |  |  |  |
Total revenues | 517 | 483 | 1,027 | 938
Small Business | Operating Segments | Commercial |  |  |  |
Total revenues | 161 | 157 | 317 | 311
Other Commercial | Operating Segments | Commercial |  |  |  |
Total revenues | 459 | 365 | 892 | 710
Canada | Operating Segments | International |  |  |  |
Total revenues | 104 | 99 | 198 | 197
Europe | Operating Segments | International |  |  |  |
Total revenues | 156 | 147 | 300 | 290
Hardy | Operating Segments | International |  |  |  |
Total revenues | $ 102 | $ 97 | $ 208 | $ 202

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