v3.24.2
Revenue - Schedule of Components of Interest and Other Income (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Disaggregation of Revenue [Line Items]        
Book-of-business settlements $ 2 $ 3 $ 4 $ 10
Interest income 44 35 87 67
Other income 0 3 1 5
Total interest and other income 46 41 92 82
HWC [Member]        
Disaggregation of Revenue [Line Items]        
Book-of-business settlements 0 0 0 0
Interest income 9 6 18 11
Other income 0 3 0 4
Total interest and other income 9 9 18 15
R&B [Member]        
Disaggregation of Revenue [Line Items]        
Book-of-business settlements 2 3 4 10
Interest income 29 15 57 27
Other income 0 (1) 1 (1)
Total interest and other income 31 17 62 36
Corporate Segment [Member]        
Disaggregation of Revenue [Line Items]        
Book-of-business settlements 0 0 0 0
Interest income 6 14 12 29
Other income 0 1 0 2
Total interest and other income $ 6 [1] $ 15 [1] $ 12 $ 31
[1] Reimbursable expenses and other, as well as Corporate revenue, are excluded from segment revenue, but included in total revenue on the condensed consolidated statements of comprehensive income. Amounts included in Corporate revenue may include eliminations, adjustments to reserves and impacts from hedged revenue transactions.