v3.25.2
Insurance Claim Reserves (Tables)
 6 Months Ended
Jun. 30, 2025
Insurance Loss Reserves [Abstract]  
Claims and claim adjustment expense reserves [Table Text Block]
Claims and claim adjustment expense reserves were as follows:
(in millions)June 30,
2025		December 31,
2024
Property-casualty$66,937 $64,088 
Accident and health4 5 
Total$66,941 $64,093 
Reconciliation of beginning and ending property casualty reserve balances for claims and claim adjustment expenses [Table Text Block]
The following table presents a reconciliation of beginning and ending property casualty reserve balances for claims and claim adjustment expenses:
Six Months Ended June 30,
(in millions)20252024
Claims and claim adjustment expense reserves at beginning of year$64,088 $61,621 
Less reinsurance recoverables on unpaid losses7,669 7,817 
Net reserves at beginning of year56,419 53,804 
Estimated claims and claim adjustment expenses for claims arising in the current year15,392 14,213 
Estimated decrease in claims and claim adjustment expenses for
 claims arising in prior years
(650)(232)
Total increases14,742 13,981 
Claims and claim adjustment expense payments for claims arising in:  
Current year4,504 3,953 
Prior years7,763 7,750 
Total payments12,267 11,703 
Unrealized foreign exchange (gain) loss272 (75)
Net reserves at end of period59,166 56,007 
Plus reinsurance recoverables on unpaid losses7,771 7,845 
Claims and claim adjustment expense reserves at end of period$66,937 $63,852