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Investment gains (losses) (Tables)
 9 Months Ended
Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]  
Summary of investment gains (losses)

Investment gains (losses) in the third quarter and first nine months of 2024 and 2023 are summarized as follows (in millions).

 

 

Third Quarter

 

 

First Nine Months

 

 

 

2024

 

 

2023

 

 

2024

 

 

2023

 

Investment gains (losses):

 

 

 

 

 

 

 

 

 

 

 

 

Equity securities:

 

 

 

 

 

 

 

 

 

 

 

 

Change in unrealized investment gains (losses) during the
     period on securities held at the end of the period

 

$

18,643

 

 

$

(30,354

)

 

$

45,053

 

 

$

33,267

 

Investment gains (losses) on securities sold during the period

 

 

1,868

 

 

 

605

 

 

 

1,221

 

 

 

1,748

 

 

 

20,511

 

 

 

(29,749

)

 

 

46,274

 

 

 

35,015

 

Fixed maturity securities:

 

 

 

 

 

 

 

 

 

 

 

 

Gross realized gains

 

 

23

 

 

 

3

 

 

 

37

 

 

 

135

 

Gross realized losses

 

 

(17

)

 

 

(29

)

 

 

(57

)

 

 

(106

)

Other

 

 

(3

)

 

 

(3

)

 

 

(7

)

 

 

2,997

 

 

 

$

20,514

 

 

$

(29,778

)

 

$

46,247

 

 

$

38,041