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v3.25.1

Long-duration insurance contracts - Summary of changes in discounted present values of expected future policy benefits and expected future net premiums (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] |  |
Balance at March 31 | $ 17,734 | $ 17,987
Periodic Payment Annuity [Member] |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |
Balance at beginning of year | 10,276 | 11,212
Balance at beginning of year at original discount rate | 11,757 | 11,681
Effect of actual versus expected experience | 2 | 2
Change in benefits, net | (120) | (115)
Interest accrual | 138 | 136
Foreign currency effect | 49 | 2
Ending balance at original discount rate | 11,826 | 11,706
Effect of changes in discount rate assumptions | (1,450) | (957)
Expected future policy benefits at March 31 | 10,376 | 10,749
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] |  |
Balance at March 31 | 10,376 | 10,749
Liabilities for future policy benefits at March 31, net of reinsurance recoverables | 10,376 | 10,749
Life and Health [Member] |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |
Balance at beginning of year | 43,784 | 52,665
Balance at beginning of year at original discount rate | 55,170 | 65,871
Effect of cash flow assumption changes | (75) | (34)
Effect of actual versus expected experience | 218 | (12,870)
Change in benefits, net | (562) | (449)
Interest accrual | 318 | 284
Foreign currency effect | 263 | (389)
Ending balance at original discount rate | 55,332 | 52,413
Effect of changes in discount rate assumptions | (12,086) | (11,627)
Expected future policy benefits at March 31 | 43,246 | 40,786
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] |  |
Balance at beginning of year | 39,294 | 46,916
Balance at beginning of year at original discount rate | 49,500 | 58,731
Effect of cash flow assumption changes | (66) | (25)
Effect of actual versus expected experience | 195 | (11,278)
Change in premiums, net | (544) | (407)
Interest accrual | 285 | 251
Foreign currency effect | 234 | (358)
Ending balance at original discount rate | 49,604 | 46,914
Effect of changes in discount rate assumptions | (10,843) | (10,387)
Expected future net premiums at March 31 | 38,761 | 36,527
Balance at March 31 | 4,485 | 4,259
Reinsurance recoverables | (47) | (50)
Liabilities for future policy benefits at March 31, net of reinsurance recoverables | $ 4,438 | $ 4,209

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