XML 46 R38.htm IDEA: XBRL DOCUMENT v3.25.3
Revenues - Schedule of Disaggregated by Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Disaggregation Of Revenue [Line Items]        
Investment Income, Nonoperating $ 55 $ 31 $ 108 $ 71
Other income, net 1 0 4 6
Total revenues 1,606 1,186 4,295 3,622
Base Commission Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 1,073 822 2,910 2,505
Fee Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 346 251 878 716
Other Supplemental Commissions Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 36 32 177 162
Profit-Sharing Contingent Commission Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 73 27 161 110
Earned premium        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 22 23 57 52
Operating Segments        
Disaggregation Of Revenue [Line Items]        
Total revenues 1,564 1,165 4,218 3,575
Operating Segments | Retail        
Disaggregation Of Revenue [Line Items]        
Investment Income, Nonoperating 5 2 9 3
Other income, net 1 0 2 3
Total revenues 883 641 2,487 2,093
Operating Segments | Retail | Base Commission Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 623 444 1,722 1,440
Operating Segments | Retail | Fee Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 204 158 554 469
Operating Segments | Retail | Other Supplemental Commissions Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 32 29 160 148
Operating Segments | Retail | Profit-Sharing Contingent Commission Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 18 8 40 30
Operating Segments | Retail | Earned premium        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 0 0 0 0
Operating Segments | Specialty Distribution        
Disaggregation Of Revenue [Line Items]        
Investment Income, Nonoperating 8 8 20 21
Other income, net 0 0 2 2
Total revenues 681 524 1,731 1,482
Operating Segments | Specialty Distribution | Base Commission Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 450 378 1,188 1,065
Operating Segments | Specialty Distribution | Fee Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 142 93 326 248
Operating Segments | Specialty Distribution | Other Supplemental Commissions Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 4 3 17 14
Operating Segments | Specialty Distribution | Profit-Sharing Contingent Commission Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 55 19 121 80
Operating Segments | Specialty Distribution | Earned premium        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 22 23 57 52
Other        
Disaggregation Of Revenue [Line Items]        
Investment Income, Nonoperating 42 21 79 47
Other income, net 0 0 0 1
Total revenues 42 21 77 47
Other | Base Commission Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 0 0 0 0
Other | Fee Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 0 0 (2) (1)
Other | Other Supplemental Commissions Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 0 0 0 0
Other | Profit-Sharing Contingent Commission Revenue        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other 0 0 0 0
Other | Earned premium        
Disaggregation Of Revenue [Line Items]        
Fees and Commissions, Other $ 0 $ 0 $ 0 $ 0