v3.26.3
SEGMENT INFORMATION - Schedule of Segment Reporting Information (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting [Line Items]        
Interest income $ 13 $ 17 $ 39 $ 53
Total revenues 1,175 1,232 3,579 3,762
Depreciation and amortization of intangible assets 17 16 53 50
Stock based compensation 17 17 50 48
Interest expense, bank fees and other 12 13 39 42
Income taxes 8 16 63 60
Net income 31 34 173 156
Reportable Segment        
Segment Reporting [Line Items]        
Interest income 13 17 39 53
Total revenues 1,175 1,232 3,579 3,762
Workers' compensation costs 18 18 54 57
Health insurance costs 876 925 2,563 2,775
Sales & marketing 64 63 188 188
Client support costs 39 43 121 133
Corporate administration 52 44 143 122
System support & development 40 41 116 126
Depreciation and amortization of intangible assets 17 16 53 50
Stock based compensation 17 17 50 48
Other 1 2 16 5
Interest expense, bank fees and other 12 13 39 42
Income taxes 8 16 63 60
Net income 31 34 173 156
Professional service revenues        
Segment Reporting [Line Items]        
Service revenues 157 169 505 550
Professional service revenues | Reportable Segment        
Segment Reporting [Line Items]        
Service revenues 157 169 505 550
Insurance service revenues        
Segment Reporting [Line Items]        
Service revenues 1,005 1,046 3,035 3,159
Insurance service revenues | Reportable Segment        
Segment Reporting [Line Items]        
Service revenues $ 1,005 $ 1,046 $ 3,035 $ 3,159