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Accumulated other comprehensive income (Tables)
 3 Months Ended
Mar. 31, 2024
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 three months ending March 31, 2024 and 2023 follows (in millions).

 

 

Unrealized
gains (losses) on investments

 

 

Foreign currency translation

 

 

Long-duration insurance contracts

 

 

Defined benefit pension plans

 

 

Other

 

 

Total

 

First quarter of 2024

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance at the beginning of the year

$

190

 

 

$

(5,393

)

 

$

1,353

 

 

$

(97

)

 

$

184

 

 

$

(3,763

)

Other comprehensive income

 

(29

)

 

 

(523

)

 

 

284

 

 

 

3

 

 

 

(22

)

 

 

(287

)

Balance at the end of the period

$

161

 

 

$

(5,916

)

 

$

1,637

 

 

$

(94

)

 

$

162

 

 

$

(4,050

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

First quarter of 2023

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance at the beginning of the year

$

(187

)

 

$

(6,142

)

 

$

1,541

 

 

$

(552

)

 

$

288

 

 

$

(5,052

)

Other comprehensive income

 

194

 

 

 

244

 

 

 

(291

)

 

 

44

 

 

 

(115

)

 

 

76

 

Balance at the end of the period

$

7

 

 

$

(5,898

)

 

$

1,250

 

 

$

(508

)

 

$

173

 

 

$

(4,976

)