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Schedule VI. Supplemental Information Concerning Property and Casualty Insurance Operations
 12 Months Ended
Dec. 31, 2025
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Abstract]  
Schedule VI. Supplemental Information Concerning Property and Casualty Insurance Operations
SCHEDULE VI. SUPPLEMENTAL INFORMATION CONCERNING PROPERTY AND CASUALTY INSURANCE OPERATIONS
As of and for the years ended December 31Consolidated Property and Casualty Operations
(In millions)202520242023
Balance Sheet Data
Deferred acquisition costs$986 $959 $896 
Reserves for unpaid claim and claim adjustment expenses26,599 24,976 23,304 
Discount deducted from claim and claim adjustment expense reserves above (based on interest rates ranging from 3.5% to 6.5%)
583 615 647 
Unearned premiums7,635 7,346 6,933 
Statement of Operations Data
Net written premiums$11,101 $10,605 $9,892 
Net earned premiums10,900 10,211 9,480 
Net investment income2,467 2,396 2,163 
Incurred claim and claim adjustment expenses related to current year6,724 6,330 5,667 
Incurred claim and claim adjustment expenses related to prior years189 42 48 
Amortization of deferred acquisition costs1,898 1,798 1,644 
Paid claim and claim adjustment expenses5,774 5,189 4,601