XML 150 R137.htm IDEA: XBRL DOCUMENT v3.22.4
Business Segments (Revenues by Line of Business) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Total revenues $ 11,879 $ 11,908 $ 10,808
Total operating revenues 12,078 11,788 10,862
Net investment gains (losses) (199) 120 (54)
Operating Segments | Specialty      
Total revenues 5,209 5,004 4,585
Operating Segments | Commercial      
Total revenues 4,441 4,199 3,861
Operating Segments | International      
Total revenues 1,134 1,114 998
Operating Segments | Life & Group      
Total revenues 1,276 1,457 1,355
Operating Segments | Corporate & Other      
Total revenues 24 21 69
Eliminations      
Total revenues (6) (7) (6)
Management & Professional Liability | Operating Segments | Specialty      
Total revenues 2,771 2,776 2,577
Surety | Operating Segments | Specialty      
Total revenues 652 604 596
Warranty & Alternative Risks | Operating Segments | Specialty      
Total revenues 1,786 1,624 1,412
Middle Market | Operating Segments | Commercial      
Total revenues 1,532 1,508 1,444
Construction | Operating Segments | Commercial      
Total revenues 1,421 1,322 1,120
Small Business | Operating Segments | Commercial      
Total revenues 581 558 482
Other Commercial | Operating Segments | Commercial      
Total revenues 907 811 815
Canada | Operating Segments | International      
Total revenues 366 344 291
Europe | Operating Segments | International      
Total revenues 466 473 389
Hardy | Operating Segments | International      
Total revenues $ 302 $ 297 $ 318