XML 56 R46.htm IDEA: XBRL DOCUMENT v3.24.3
Property Casualty Loss and Loss Expenses - Consolidated Property Casualty Loss and Loss Expense Reserves (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Summary of Consolidated Property Casualty Loss and Loss Expense Reserves [Roll Forward]        
Gross loss and loss expense reserves, beginning of period     $ 9,050  
Prior accident years $ (71) $ (53) (211) $ (213)
Gross loss and loss expense reserves, end of period 9,928   9,928  
Property and Casualty Insurance        
Summary of Consolidated Property Casualty Loss and Loss Expense Reserves [Roll Forward]        
Gross loss and loss expense reserves, beginning of period 9,494 8,807 8,975 8,336
Less reinsurance recoverable 303 424 362 405
Net loss and loss expense reserves, beginning of period 9,191 8,383 8,613 7,931
Current accident year 1,570 1,314 4,392 4,053
Prior accident years (71) (53) (211) (213)
Total incurred 1,499 1,261 4,181 3,840
Current accident year 574 597 1,262 1,286
Prior accident years 540 461 1,956 1,899
Total paid 1,114 1,058 3,218 3,185
Net loss and loss expense reserves, end of period 9,576 8,586 9,576 8,586
Plus reinsurance recoverable 290 419 290 419
Gross loss and loss expense reserves, end of period $ 9,866 $ 9,005 $ 9,866 $ 9,005