v3.26.1
Income Taxes - BHE - Narrative (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Effective Income Tax Rate Reconciliation [Line Items]      
Related party transaction, cash received (paid) for income taxes $ 1,393 $ 803  
Years eligible for federal renewable energy production tax credit 10 years    
Parent Company      
Effective Income Tax Rate Reconciliation [Line Items]      
Current income tax receivable (payable), related parties $ 9   $ 282