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Schedule VI. Supplemental Information Concerning Property and Casualty Insurance Operations
12 Months Ended
Dec. 31, 2022
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)202220212020
Balance Sheet Data
Deferred acquisition costs$806 $737 
Reserves for unpaid claim and claim adjustment expenses25,099 24,174 
Discount deducted from claim and claim adjustment expense reserves above (based on interest rates ranging from 3.5% to 6.4%)
1,133 1,146 
Unearned premiums6,374 5,761 
Statement of Operations Data
Net written premiums$9,128 $8,405 $8,059 
Net earned premiums8,667 8,175 7,649 
Net investment income1,751 2,111 1,896 
Incurred claim and claim adjustment expenses related to current year6,243 5,970 5,793 
Incurred claim and claim adjustment expenses related to prior years(187)(104)(119)
Amortization of deferred acquisition costs1,490 1,443 1,410 
Paid claim and claim adjustment expenses5,261 4,844 5,164