v3.26.1
Insurance Claim Reserves (Tables)
 6 Months Ended
Jun. 30, 2026
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,
2026		December 31,
2025
Property-casualty$67,222 $67,643 
Accident and health4 3 
Less amounts classified as held for sale— 1,909 
Total$67,226 $65,737 
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)20262025
Claims and claim adjustment expense reserves at beginning of year$67,643 $64,088 
Less reinsurance recoverables on unpaid losses7,797 7,669 
Net reserves at beginning of year59,846 56,419 
Estimated claims and claim adjustment expenses for claims arising in the current year13,192 15,392 
Estimated decrease in claims and claim adjustment expenses for
 claims arising in prior years
(939)(650)
Total increases12,253 14,742 
Claims and claim adjustment expense payments for claims arising in:  
Current year3,501 4,504 
Prior years7,487 7,763 
Total payments10,988 12,267 
Net reserves disposed of related to the divestiture of the Canadian business(1,627)— 
Unrealized foreign exchange (gain) loss(37)272 
Net reserves at end of period59,447 59,166 
Plus reinsurance recoverables on unpaid losses7,775 7,771 
Claims and claim adjustment expense reserves at end of period$67,222 $66,937