XML 61 R53.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

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 | )

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

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-14A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481674/830-30-50-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481694/830-30-45-20 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration