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Business segment data (Tables) | 3 Months Ended
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Mar. 31, 2024
Segment Reporting [Abstract] |
Schedule of revenues and earnings before income taxes by segment | Our operating businesses include a large and diverse group of insurance, freight rail transportation, utilities and energy, manufacturing, service and retailing businesses. We organize our reportable business segments in a manner that reflects how management views those business activities. Certain businesses are grouped together for segment reporting based upon similar products or product lines and marketing, selling and distribution characteristics, even though those business units are operated under separate local management. We acquired control of Pilot on January 31, 2023. In this presentation, revenues and pre-tax earnings of the Pilot segment in 2023 are for the two months ending March 31. Prior to January 31, 2023, our earnings from Pilot were determined under the equity method and were included in earnings from non-controlled businesses. Revenues and earnings before income taxes by segment for the first quarter of 2024 and 2023 were as follows (in millions).
|  |  | First Quarter |
|  |  |  |  | 2024 |  |  | 2023 |
Revenues of Operating Businesses |  |  |  |  |  |  |  |  |
Insurance: |  |  |  |  |  |  |  |  |
Underwriting: |  |  |  |  |  |  |  |  |
GEICO |  |  |  |  | $ | 10,234 |  |  | $ | 9,626 |
Berkshire Hathaway Primary Group |  |  |  |  |  | 4,541 |  |  |  | 3,961 |
Berkshire Hathaway Reinsurance Group |  |  |  |  |  | 6,699 |  |  |  | 6,209 |
Investment income |  |  |  |  |  | 3,164 |  |  |  | 2,392 |
Total insurance |  |  |  |  |  | 24,638 |  |  |  | 22,188 |
BNSF |  |  |  |  |  | 5,660 |  |  |  | 6,019 |
BHE |  |  |  |  |  | 6,277 |  |  |  | 6,451 |
Pilot |  |  |  |  |  | 12,503 |  |  |  | 9,508 |
Manufacturing |  |  |  |  |  | 18,529 |  |  |  | 18,289 |
McLane |  |  |  |  |  | 12,475 |  |  |  | 13,059 |
Service and retailing |  |  |  |  |  | 9,703 |  |  |  | 9,931 |
|  |  |  |  |  | 89,785 |  |  |  | 85,445 |
Reconciliation to consolidated amount |  |  |  |  |  |  |  |  |
Corporate, eliminations and other |  |  |  |  |  | 84 |  |  |  | (52 | )
|  |  |  |  | $ | 89,869 |  |  | $ | 85,393 |
|  |  | First Quarter |
|  |  |  |  | 2024 |  |  | 2023 |
Earnings Before Income Taxes of Operating Businesses |  |  |  |  |  |  |  |  |
Insurance: |  |  |  |  |  |  |  |  |
Underwriting: |  |  |  |  |  |  |  |  |
GEICO |  |  |  |  | $ | 1,928 |  |  | $ | 703 |
Berkshire Hathaway Primary Group |  |  |  |  |  | 486 |  |  |  | 268 |
Berkshire Hathaway Reinsurance Group |  |  |  |  |  | 912 |  |  |  | 231 |
Investment income |  |  |  |  |  | 3,152 |  |  |  | 2,385 |
Total insurance |  |  |  |  |  | 6,478 |  |  |  | 3,587 |
BNSF |  |  |  |  |  | 1,519 |  |  |  | 1,649 |
BHE |  |  |  |  |  | 432 |  |  |  | 223 |
Pilot |  |  |  |  |  | 70 |  |  |  | 136 |
Manufacturing |  |  |  |  |  | 2,914 |  |  |  | 2,611 |
McLane |  |  |  |  |  | 165 |  |  |  | 113 |
Service and retailing |  |  |  |  |  | 908 |  |  |  | 1,221 |
|  |  |  |  |  | 12,486 |  |  |  | 9,540 |
Reconciliation to consolidated amount |  |  |  |  |  |  |  |  |
Investment gains (losses) |  |  |  |  |  | 1,876 |  |  |  | 34,758 |
Interest expense, not allocated to segments |  |  |  |  |  | (96 | ) |  |  | (114 | )
Non-controlled businesses |  |  |  |  |  | 493 |  |  |  | 688 |
Corporate, eliminations and other |  |  |  |  |  | 947 |  |  |  | (120 | )
|  |  |  |  | $ | 15,706 |  |  | $ | 44,752 |

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482573/350-20-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-25 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-22 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-30 + Details
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