XML 25 R17.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Investment gains (losses) | 6 Months Ended
--- | ---
Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract] |
Investment gains (losses) | Note 7. Investment gains (losses) Investment gains (losses) in the second quarter and first six months of 2024 and 2023 are summarized as follows (in millions).
|  | Second Quarter |  |  | First Six 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 |  | $ | 17,252 |  |  | $ | 33,046 |  |  | $ | 29,711 |  |  | $ | 63,763 |
Investment gains (losses) on securities sold during the period |  |  | 6,633 |  |  |  | 31 |  |  |  | (3,948 | ) |  |  | 1,001 |
|  |  | 23,885 |  |  |  | 33,077 |  |  |  | 25,763 |  |  |  | 64,764 |
Fixed maturity securities: |  |  |  |  |  |  |  |  |  |  |  |
Gross realized gains |  |  | 1 |  |  |  | 8 |  |  |  | 14 |  |  |  | 132 |
Gross realized losses |  |  | (28 | ) |  |  | (25 | ) |  |  | (40 | ) |  |  | (77 | )
Other |  |  | (1 | ) |  |  | 1 |  |  |  | (4 | ) |  |  | 3,000 |
|  | $ | 23,857 |  |  | $ | 33,061 |  |  | $ | 25,733 |  |  | $ | 67,819 |
Equity securities gains and losses include unrealized gains and losses from changes in fair values during the period on equity securities we still own, as well as gains and losses on securities we sold during the period. Our proceeds from sales of equity securities were approximately $97.1 billion in the first six months of 2024 and $25.8 billion in 2023. In the preceding table, investment gains and losses on equity securities sold during the period represent the difference between the sales proceeds and the fair value of the equity securities sold at the beginning of the applicable period or, if later, the acquisition date. Taxable gains and losses on equity securities sold are generally the difference between the proceeds from sales and cost. Our sales of equity securities produced taxable gains of $59.6 billion in the second quarter and $73.7 billion in the first six months of 2024 compared to taxable gains of $2.4 billion in the second quarter and $4.6 billion in the first six months of 2023. Other investment gains in the first six months of 2023 included a non-cash gain of approximately $3.0 billion from the remeasurement of our pre-existing 38.6% interest in Pilot through the application of acquisition accounting under GAAP.

X
- Definition Investment gains losses disclosure. + References No definition available. + Details
Name: | brka_InvestmentGainsLossesDisclosureTextBlock
Namespace Prefix: | brka_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration