v3.25.4
Revenue from contracts with customers disaggregated by reportable segment and source of revenue (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers $ 247,244 $ 249,714 $ 254,906
Other revenues 124,200 121,719 109,576
Total revenues 371,444 371,433 364,482
Industrial and Commercial [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 30,336 29,117 28,299
Building [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 19,609 19,892 20,119
Consumer [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 17,919 18,204 17,702
Grocery and Convenience Store Distribution [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 30,697 31,841 31,524
Food and Beverage Distribution [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 18,585 18,068 19,040
Auto Sales [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 11,283 10,802 10,747
Other Retail and Wholesale Distribution [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 60,598 64,858 70,775
Service [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 36,879 35,941 36,053
Electricity and Natural Gas [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 21,338 20,991 20,647
Manufacturing Businesses [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 72,830 71,963 70,633
Other revenues 5,560 5,185 4,650
Total revenues 78,390 77,148 75,283
Manufacturing Businesses [Member] | Industrial and Commercial [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 30,145 28,907 28,066
Manufacturing Businesses [Member] | Building [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 19,609 19,892 20,119
Manufacturing Businesses [Member] | Consumer [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 17,919 18,204 17,702
Manufacturing Businesses [Member] | Other Retail and Wholesale Distribution [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 3,697 3,390 3,289
Manufacturing Businesses [Member] | Service [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 1,460 1,570 1,457
McLane [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 50,179 50,908 51,643
Other revenues 36 178 171
Total revenues 50,215 51,086 51,814
McLane [Member] | Grocery and Convenience Store Distribution [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 30,697 31,841 31,524
McLane [Member] | Food and Beverage Distribution [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 18,585 18,068 19,040
McLane [Member] | Service [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 897 999 1,079
Service and Retailing [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 33,751 31,808 32,743
Other revenues 8,809 7,975 7,136
Total revenues 42,560 39,783 39,879
Service and Retailing [Member] | Industrial and Commercial [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 191 210 233
Service and Retailing [Member] | Auto Sales [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 11,283 10,802 10,747
Service and Retailing [Member] | Other Retail and Wholesale Distribution [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 15,290 15,035 16,289
Service and Retailing [Member] | Service [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 6,987 5,761 5,474
BNSF [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 23,256 23,278 23,724
Other revenues 185 212 67
Total revenues 23,441 23,490 23,791
BNSF [Member] | Service [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 23,256 23,278 23,724
Berkshire Hathaway Energy [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 25,351 25,050 24,702
Other revenues 931 1,250 1,258
Total revenues 26,282 26,300 25,960
Berkshire Hathaway Energy [Member] | Service [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 4,013 4,059 4,055
Berkshire Hathaway Energy [Member] | Electricity and Natural Gas [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 21,338 20,991 20,647
Pilot [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers [1] 41,877 46,707 51,461
Other revenues [1] 289 149 203
Total revenues [1] 42,166 46,856 51,664
Pilot [Member] | Other Retail and Wholesale Distribution [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers [1] 41,611 46,433 51,197
Pilot [Member] | Service [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers [1] 266 274 264
Insurance, Corporate and Other [Member]      
Disaggregation of Revenue [Line Items]      
Other revenues 108,390 106,770 96,091
Total revenues $ 108,390 $ 106,770 $ 96,091
[1] Revenues from Pilot are principally fuel sales. Revenues in 2023 are for the eleven months ending December 31.