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Accumulated other comprehensive income (Tables)
 6 Months Ended
Jun. 30, 2022
Equity [Abstract]  
Schedule of accumulated other comprehensive income

A summary of the net changes in after-tax accumulated other comprehensive income attributable to Berkshire Hathaway shareholders for the six months ending June 30, 2022 and 2021 follows (in millions).

 

 

 

Unrealized

appreciation of

fixed maturity

securities, net

 

 

Foreign

currency

translation

 

 

Defined benefit

pension plans

 

 

Other

 

 

Accumulated

other

comprehensive

income

 

First six months of 2022

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance at beginning of year

 

$

369

 

 

$

(4,092

)

 

$

(347

)

 

$

43

 

 

$

(4,027

)

Other comprehensive income, net

 

 

(352

)

 

 

(1,971

)

 

 

27

 

 

 

148

 

 

 

(2,148

)

Balance at end of period

 

$

17

 

 

$

(6,063

)

 

$

(320

)

 

$

191

 

 

$

(6,175

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

First six months of 2021

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance at beginning of year

 

$

536

 

 

$

(3,082

)

 

$

(1,645

)

 

$

(52

)

 

$

(4,243

)

Other comprehensive income, net

 

 

(58

)

 

 

(1

)

 

 

73

 

 

 

10

 

 

 

24

 

Balance at end of period

 

$

478

 

 

$

(3,083

)

 

$

(1,572

)

 

$

(42

)

 

$

(4,219

)