XML 123 R96.htm IDEA: XBRL DOCUMENT v3.25.4
Insurance - Short-duration insurance contracts, claims development (Details) - Property and casualty insurance
$ in Millions
Dec. 31, 2025
USD ($)
claim
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 28,802                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance 20,752                  
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE) 434                  
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) 8,484                  
Excludes short-duration insurance contracts detail for accident years not separately presented                    
Claims Development [Line Items]                    
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) 8,050                  
Accident Year 2016                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance 1,978 $ 1,970 $ 1,974 $ 1,986 $ 2,004 $ 2,034 $ 2,060 $ 2,082 $ 2,083 $ 2,117
Total IBNR Plus Expected Development on Reported Claims $ 119                  
Cumulative Number of Reported Claims | claim 223,533                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 1,885 1,865 1,848 1,806 1,750 1,662 1,539 1,350 1,099 577
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 95.30%                  
Accident Year 2017                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 2,293 2,283 2,266 2,256 2,269 2,301 2,329 2,348 2,375  
Total IBNR Plus Expected Development on Reported Claims $ 143                  
Cumulative Number of Reported Claims | claim 247,498                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 2,138 2,100 2,030 1,953 1,844 1,736 1,524 1,250 709  
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 93.20%                  
Accident Year 2018                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 2,451 2,451 2,449 2,452 2,439 2,499 2,516 2,507    
Total IBNR Plus Expected Development on Reported Claims $ 174                  
Cumulative Number of Reported Claims | claim 237,429                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 2,241 2,178 2,099 1,977 1,807 1,606 1,337 730    
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 91.40%                  
Accident Year 2019                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 2,644 2,657 2,642 2,632 2,672 2,674 2,721      
Total IBNR Plus Expected Development on Reported Claims $ 199                  
Cumulative Number of Reported Claims | claim 256,682                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 2,385 2,284 2,160 1,983 1,768 1,448 847      
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 90.20%                  
Accident year 2020                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 2,519 2,512 2,500 2,546 2,635 2,748        
Total IBNR Plus Expected Development on Reported Claims $ 271                  
Cumulative Number of Reported Claims | claim 207,122                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 2,167 2,043 1,842 1,620 1,337 758        
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 86.00%                  
Accident Year 2021                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 2,632 2,669 2,689 2,754 2,861          
Total IBNR Plus Expected Development on Reported Claims $ 368                  
Cumulative Number of Reported Claims | claim 208,857                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 2,147 1,958 1,687 1,368 746          
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 81.60%                  
Accident Year 2022                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 3,206 3,204 3,205 3,270            
Total IBNR Plus Expected Development on Reported Claims $ 536                  
Cumulative Number of Reported Claims | claim 222,831                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 2,415 2,144 1,724 904            
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 75.30%                  
Accident Year 2023                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 3,585 3,580 3,631              
Total IBNR Plus Expected Development on Reported Claims $ 862                  
Cumulative Number of Reported Claims | claim 234,516                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 2,349 1,950 989              
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 65.50%                  
Accident Year 2024                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 3,749 3,825                
Total IBNR Plus Expected Development on Reported Claims $ 1,180                  
Cumulative Number of Reported Claims | claim 263,125                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 2,067 1,138                
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 55.10%                  
Accident Year 2025                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 3,745                  
Total IBNR Plus Expected Development on Reported Claims $ 2,009                  
Cumulative Number of Reported Claims | claim 210,163                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 958                  
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 25.60%                  
Property and transportation                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 11,198                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance 9,373                  
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE) 22                  
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) 1,847                  
Property and transportation | Excludes short-duration insurance contracts detail for accident years not separately presented                    
Claims Development [Line Items]                    
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) 1,825                  
Property and transportation | Accident Year 2016                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance 690 692 695 695 694 700 713 720 723 753
Total IBNR Plus Expected Development on Reported Claims $ 70                  
Cumulative Number of Reported Claims | claim 121,425                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 681 679 676 670 661 645 622 580 524 295
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 98.70%                  
Property and transportation | Accident Year 2017                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 820 823 825 826 822 829 850 855 897  
Total IBNR Plus Expected Development on Reported Claims $ 56                  
Cumulative Number of Reported Claims | claim 141,054                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 811 809 799 788 760 738 699 643 381  
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 98.90%                  
Property and transportation | Accident Year 2018                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 890 888 886 891 886 897 912 942    
Total IBNR Plus Expected Development on Reported Claims $ 52                  
Cumulative Number of Reported Claims | claim 130,840                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 873 859 845 831 787 744 680 400    
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 98.10%                  
Property and transportation | Accident Year 2019                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,070 1,070 1,068 1,065 1,062 1,071 1,125      
Total IBNR Plus Expected Development on Reported Claims $ 59                  
Cumulative Number of Reported Claims | claim 154,461                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 1,046 1,032 1,006 967 911 829 529      
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 97.80%                  
Property and transportation | Accident year 2020                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 964 963 962 969 983 1,053        
Total IBNR Plus Expected Development on Reported Claims $ 71                  
Cumulative Number of Reported Claims | claim 122,348                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 929 905 866 808 728 462        
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 96.40%                  
Property and transportation | Accident Year 2021                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,034 1,038 1,033 1,034 1,130          
Total IBNR Plus Expected Development on Reported Claims $ 86                  
Cumulative Number of Reported Claims | claim 123,890                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 972 941 872 770 449          
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 94.00%                  
Property and transportation | Accident Year 2022                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,313 1,329 1,335 1,409            
Total IBNR Plus Expected Development on Reported Claims $ 104                  
Cumulative Number of Reported Claims | claim 138,424                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 1,184 1,128 1,024 588            
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 90.20%                  
Property and transportation | Accident Year 2023                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,397 1,408 1,502              
Total IBNR Plus Expected Development on Reported Claims $ 149                  
Cumulative Number of Reported Claims | claim 145,066                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 1,176 1,070 564              
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 84.20%                  
Property and transportation | Accident Year 2024                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,558 1,614                
Total IBNR Plus Expected Development on Reported Claims $ 247                  
Cumulative Number of Reported Claims | claim 175,137                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 1,173 681                
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 75.30%                  
Property and transportation | Accident Year 2025                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,462                  
Total IBNR Plus Expected Development on Reported Claims $ 564                  
Cumulative Number of Reported Claims | claim 135,480                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 528                  
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 36.10%                  
Specialty casualty                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 15,214                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance 9,448                  
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE) 411                  
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) 6,177                  
Specialty casualty | Excludes short-duration insurance contracts detail for accident years not separately presented                    
Claims Development [Line Items]                    
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) 5,766                  
Specialty casualty | Accident Year 2016                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance 1,115 1,106 1,107 1,118 1,140 1,160 1,165 1,175 1,176 1,184
Total IBNR Plus Expected Development on Reported Claims $ 49                  
Cumulative Number of Reported Claims | claim 56,921                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 1,031 1,014 1,000 965 925 854 755 611 433 195
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 92.50%                  
Specialty casualty | Accident Year 2017                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,260 1,250 1,231 1,227 1,243 1,263 1,267 1,277 1,264  
Total IBNR Plus Expected Development on Reported Claims $ 81                  
Cumulative Number of Reported Claims | claim 57,594                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 1,128 1,095 1,036 972 890 803 638 438 208  
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 89.50%                  
Specialty casualty | Accident Year 2018                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,365 1,365 1,364 1,359 1,345 1,382 1,386 1,352    
Total IBNR Plus Expected Development on Reported Claims $ 120                  
Cumulative Number of Reported Claims | claim 59,771                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 1,173 1,125 1,060 953 832 675 494 218    
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 85.90%                  
Specialty casualty | Accident Year 2019                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,397 1,408 1,391 1,380 1,419 1,404 1,401      
Total IBNR Plus Expected Development on Reported Claims $ 137                  
Cumulative Number of Reported Claims | claim 60,242                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 1,166 1,079 984 848 693 473 219      
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 83.50%                  
Specialty casualty | Accident year 2020                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,368 1,357 1,344 1,374 1,436 1,463        
Total IBNR Plus Expected Development on Reported Claims $ 194                  
Cumulative Number of Reported Claims | claim 54,981                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 1,064 971 814 652 465 196        
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 77.80%                  
Specialty casualty | Accident Year 2021                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,426 1,451 1,469 1,518 1,507          
Total IBNR Plus Expected Development on Reported Claims $ 274                  
Cumulative Number of Reported Claims | claim 57,465                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 1,013 861 668 462 199          
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 71.00%                  
Specialty casualty | Accident Year 2022                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,678 1,652 1,635 1,617            
Total IBNR Plus Expected Development on Reported Claims $ 413                  
Cumulative Number of Reported Claims | claim 60,252                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 1,038 829 536 208            
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 61.90%                  
Specialty casualty | Accident Year 2023                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,853 1,841 1,818              
Total IBNR Plus Expected Development on Reported Claims $ 639                  
Cumulative Number of Reported Claims | claim 64,764                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 924 650 275              
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 49.90%                  
Specialty casualty | Accident Year 2024                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,828 1,826                
Total IBNR Plus Expected Development on Reported Claims $ 850                  
Cumulative Number of Reported Claims | claim 64,130                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 647 281                
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 35.40%                  
Specialty casualty | Accident Year 2025                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 1,924                  
Total IBNR Plus Expected Development on Reported Claims $ 1,291                  
Cumulative Number of Reported Claims | claim 57,463                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 264                  
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 13.70%                  
Specialty financial                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 2,390                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance 1,931                  
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE) 1                  
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) 460                  
Specialty financial | Excludes short-duration insurance contracts detail for accident years not separately presented                    
Claims Development [Line Items]                    
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE) 459                  
Specialty financial | Accident Year 2016                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance 173 172 172 173 170 174 182 187 184 180
Total IBNR Plus Expected Development on Reported Claims $ 0                  
Cumulative Number of Reported Claims | claim 45,187                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 173 172 172 171 164 163 162 159 142 $ 87
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 100.00%                  
Specialty financial | Accident Year 2017                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 213 210 210 203 204 209 212 216 214  
Total IBNR Plus Expected Development on Reported Claims $ 6                  
Cumulative Number of Reported Claims | claim 48,850                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 199 196 195 193 194 195 187 169 $ 120  
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 93.40%                  
Specialty financial | Accident Year 2018                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 196 198 199 202 208 220 218 213    
Total IBNR Plus Expected Development on Reported Claims $ 2                  
Cumulative Number of Reported Claims | claim 46,818                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 195 194 194 193 188 187 163 $ 112    
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 99.50%                  
Specialty financial | Accident Year 2019                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 177 179 183 187 191 199 195      
Total IBNR Plus Expected Development on Reported Claims $ 3                  
Cumulative Number of Reported Claims | claim 41,979                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 173 173 170 168 164 146 $ 99      
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 97.70%                  
Specialty financial | Accident year 2020                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 187 192 194 203 216 232        
Total IBNR Plus Expected Development on Reported Claims $ 6                  
Cumulative Number of Reported Claims | claim 29,793                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 174 167 162 160 144 $ 100        
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 93.00%                  
Specialty financial | Accident Year 2021                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 172 180 187 202 224          
Total IBNR Plus Expected Development on Reported Claims $ 8                  
Cumulative Number of Reported Claims | claim 27,502                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 162 156 147 136 $ 98          
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 94.20%                  
Specialty financial | Accident Year 2022                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 215 223 235 244            
Total IBNR Plus Expected Development on Reported Claims $ 19                  
Cumulative Number of Reported Claims | claim 24,155                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 193 187 164 $ 108            
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 89.80%                  
Specialty financial | Accident Year 2023                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 335 331 311              
Total IBNR Plus Expected Development on Reported Claims $ 74                  
Cumulative Number of Reported Claims | claim 24,686                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 249 230 $ 150              
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 74.30%                  
Specialty financial | Accident Year 2024                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 363 385                
Total IBNR Plus Expected Development on Reported Claims $ 83                  
Cumulative Number of Reported Claims | claim 23,858                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 247 $ 176                
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 68.00%                  
Specialty financial | Accident Year 2025                    
Claims Development [Line Items]                    
Incurred Claims and Allocated LAE, Net of Reinsurance $ 359                  
Total IBNR Plus Expected Development on Reported Claims $ 154                  
Cumulative Number of Reported Claims | claim 17,220                  
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance $ 166                  
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance 46.20%