v3.26.1
Segment Information - Schedule of Continuing Operations by Operating Segment (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Net Premiums Earned $ 6,221 $ 5,877 $ 12,293 $ 11,647
Loss and Loss Adjustment Expenses Incurred 3,584 3,493 7,059 7,287
Amortization of DAC 900 847 1,724 1,672
General Operating Expense 1,231 1,162 2,368 2,277
Net Investment Income 1,127 1,466 1,839 2,571
Income before income tax expense 1,264 1,544 2,251 2,504
Interest expense 100 100 200 192
Changes in the fair values of equity securities, AIG's investment in Corebridge and gain/loss on sale of shares 173 464 (64) 681
Other income (expense) - net 1   3  
Gain on extinguishment of debt 0 5 0 5
Realized losses (265) (258) (400) (361)
Net realized losses, net investment income 0 0 0 (2)
Net realized losses, reconciliation to income (loss) from continuing operations before income tax expense (208) (191) (344) (257)
Net gain (loss) on divestitures and other (6) 50 (133) 53
Non-operating litigation reserves and settlements   2   13
(Unfavorable) favorable prior year development and related amortization changes ceded under retroactive reinsurance agreements 67 (53) 75 (62)
Net loss reserve discount charge (28) (12) 20 (29)
Net results of businesses in run-off 9 8 18 13
Net results of businesses in run-off, net investment income, reconciliation to income (loss) from continuing operations before income tax expense (1) 2 (6) 7
Non-operating pension expenses 1 (5) 2 (10)
Integration and transaction costs associated with acquiring or divesting businesses (41) (1) (48) (6)
Restructuring and other costs $ (71) $ (78) $ (147) $ (154)
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] General Operating Expense General Operating Expense General Operating Expense General Operating Expense
Non-recurring costs related to regulatory or accounting changes $ (5) $ (3) $ (10) $ (7)
Fortitude Re funds withheld assets        
Segment Reporting [Line Items]        
Net Investment Income 36 39 59 79
Realized losses (6) (52) (19) (54)
Fortitude Re funds withheld embedded derivative        
Segment Reporting [Line Items]        
Realized losses (51) (14) (41) (55)
Total        
Segment Reporting [Line Items]        
Net Investment Income 908 955 1,823 1,800
Income before income tax expense 1,404 1,391 2,907 2,300
Reportable Segments        
Segment Reporting [Line Items]        
Net Premiums Written 7,516 6,880 13,115 11,406
Net Premiums Earned 6,196 5,878 12,248 11,647
Loss and Loss Adjustment Expenses Incurred 3,605 3,428 7,114 7,194
Amortization of DAC 894 846 1,712 1,671
Other Acquisition Expenses 220 201 453 433
General Operating Expense 791 777 1,509 1,480
Underwriting Income (Loss) 686 626 1,460 869
Net Investment Income 871 871 1,735 1,607
Income before income tax expense 1,546 1,492 3,174 2,467
Interest expense (99) (101) (199) (192)
Amortization of intangible assets and renewal rights (11) (5) (21) (9)
Other Operations        
Segment Reporting [Line Items]        
Net Investment Income 36 88 88 196
Income before income tax expense (43) 2 (68) 27
Elimination and consolidations        
Segment Reporting [Line Items]        
Net Investment Income 1 (4)   (3)
Income before income tax expense 0 (2)   (2)
North America Commercial | Reportable Segments        
Segment Reporting [Line Items]        
Net Premiums Written 3,125 2,863 4,730 4,037
Net Premiums Earned 2,324 2,133 4,577 4,257
Loss and Loss Adjustment Expenses Incurred 1,410 1,340 2,831 2,866
Amortization of DAC 248 206 461 433
Other Acquisition Expenses 38 46 106 93
General Operating Expense 256 240 480 435
Underwriting Income (Loss) 372 301 699 430
International Commercial | Reportable Segments        
Segment Reporting [Line Items]        
Net Premiums Written 2,588 2,325 5,038 4,352
Net Premiums Earned 2,272 2,124 4,459 4,175
Loss and Loss Adjustment Expenses Incurred 1,344 1,170 2,590 2,348
Amortization of DAC 304 269 582 514
Other Acquisition Expenses 102 84 187 178
General Operating Expense 322 301 622 595
Underwriting Income (Loss) 200 300 478 540
Global Personal | Reportable Segments        
Segment Reporting [Line Items]        
Net Premiums Written 1,803 1,692 3,347 3,017
Net Premiums Earned 1,600 1,621 3,212 3,215
Loss and Loss Adjustment Expenses Incurred 851 918 1,693 1,980
Amortization of DAC 342 371 669 724
Other Acquisition Expenses 80 71 160 162
General Operating Expense 213 236 407 450
Underwriting Income (Loss) $ 114 $ 25 $ 283 $ (101)