v3.26.1
Investment Information - Net realized gains and losses (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Available for sale securities:        
Available for sale securities, gross gains on investment sales $ 35 $ 69 $ 115 $ 120
Available for sale securities, gross losses on investment sales (83) (56) (146) (169)
Equity securities, at fair value:        
Net realized gains (losses) on sales during the period 24 7 44 54
Net unrealized gains (losses) on equity securities still held at reporting date 217 129 116 34
Allowance for credit losses:        
Allowance for credit losses - investments related (4) (8) 1 (8)
Allowance for credit losses - underwriting related (3) (2) 3 (1)
Derivative instruments [1] (76) 163 (94) 262
Other (2) [2] (142) (85) (139) (87)
Net realized gains (losses) (17) 229 (104) 232
Fixed maturities        
Available for sale securities:        
Change in fair value of assets and liabilities accounted for using the fair value option 9 20 (18) 22
Other investments        
Available for sale securities:        
Change in fair value of assets and liabilities accounted for using the fair value option 6 (11) 14 2
Short term investments        
Available for sale securities:        
Change in fair value of assets and liabilities accounted for using the fair value option $ 0 $ 3 $ 0 $ 3
[1] See note 10 for information on the Company’s derivative instruments.
[2] Amounts in the 2026 periods primarily reflect a litigation-related loss contingency recorded pursuant to ASC 450, while amounts recorded in the 2025 periods primarily relate to losses arising from the sale of certain alternative investments accounted for under the equity method.