XML 78 R63.htm IDEA: XBRL DOCUMENT v3.25.0.1
INVESTMENTS - SCHEDULE OF INVESTMENTS WITH UNREALIZED LOSSES CLASSIFIED BY CONTRACTUAL MATURITY DATE (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Amortized cost  
Due in one year or less $ 133.0
Due after one year through five years 1,618.5
Due after five years through ten years 1,244.2
Due after ten years 11,659.1
Subtotal 14,654.8
Structured securities 4,693.4
Total 19,348.2
Estimated fair value  
Due in one year or less 131.8
Due after one year through five years 1,551.5
Due after five years through ten years 1,166.8
Due after ten years 9,625.7
Subtotal 12,475.8
Structured securities 4,301.2
Total $ 16,777.0