v3.26.1
Reinsurance (Tables)
 6 Months Ended
Jun. 30, 2026
Reinsurance Disclosures [Abstract]  
Reinsurance Recoverable, Credit Quality Indicator [Table Text Block]
Reinsurance Recoverables by Credit Quality Indicator
As of June 30, 2026As of December 31, 2025
P&C
Employee Benefits
CorporateTotal
P&C
Employee Benefits
CorporateTotal
A.M. Best Financial Strength Rating
A++$2,118 $— $— $2,118 $2,161 $— $— $2,161 
A+2,243 301 210 2,754 2,292 286 213 2,791 
A719 1 — 720 764 1 — 765 
A-588 3 — 591 603 3 2 608 
B++2 — 2 4 2 — — 2 
Below B++21 — — 21 21 — — 21 
Total Rated by A.M. Best
5,691 305 212 6,208 5,843 290 215 6,348 
Mandatory (Assigned) and Voluntary Risk Pools195 — — 195 204 — — 204 
Captives483 — — 483 465 — — 465 
Other not rated companies215 6 — 221 238 5 — 243 
Gross Reinsurance Recoverables
6,584 311 212 7,107 6,750 295 215 7,260 
Allowance for uncollectible reinsurance
(67)(1)(2)(70)(66)(1)(2)(69)
Net Reinsurance Recoverables
$6,517 $310 $210 $7,037 $6,684 $294 $213 $7,191 
Reinsurance Recoverable, Allowance for Credit Loss [Table Text Block]
Allowance for Uncollectible Reinsurance
Three Months Ended June 30,Six Months Ended June 30,
2026202520262025
P&C beginning allowance for uncollectible reinsurance$68 $72 $66 $72 
Beginning allowance for disputed amounts46 52 42 48 
P&C beginning ACL22 20 24 24 
Current period provision (release)1 1 (1)(3)
Current period gross write-offs— — — — 
P&C ending ACL23 21 23 21 
Ending allowance for disputed amounts44 51 44 51 
P&C ending allowance for uncollectible reinsurance67 72 67 72 
Employee Benefits allowance for uncollectible reinsurance1 1 1 1 
Corporate allowance for uncollectible reinsurance2 2 2 2 
Total allowance for uncollectible reinsurance$70 $75 $70 $75