v3.26.1
Components of Accumulated Other Comprehensive Loss, Net - BHE (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance $ 55,309 $ 51,289
Other comprehensive income (loss) (132) 163
Ending balance 56,292 52,149
Unrecognized Amounts on Retirement Benefits    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (482) (421)
Other comprehensive income (loss) 17 0
Ending balance (465) (421)
Foreign Currency Translation Adjustment    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (1,409) (1,999)
Other comprehensive income (loss) (143) 169
Ending balance (1,552) (1,830)
Unrealized Losses on Cash Flow Hedges    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 46 78
Other comprehensive income (loss) (6) (6)
Ending balance 40 72
Noncontrolling Interest    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 1 1
Other comprehensive income (loss) 0 0
Ending balance 1 1
Accumulated Other Comprehensive (Loss) Income, Net    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (1,844) (2,341)
Other comprehensive income (loss) (132) 163
Ending balance $ (1,976) $ (2,178)