v3.26.1
Investments and Restricted Cash and Cash Equivalents and Investments - BHE - Components and Investments (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Investments:      
Other investments $ 938   $ 1,000
Equity method investments 5,532   5,700
Restricted cash and cash equivalents and investments 1,125   1,162
Total investments and restricted cash and cash equivalents and investments 7,595   7,862
Reflected as:      
Other current assets 231   254
Noncurrent assets 7,364   7,608
Unrealized losses recognized on marketable securities held at the reporting date (8) $ (8)  
Net gains recognized on marketable securities sold during the period 3 111  
(Losses) gains on marketable securities, net (5) $ 103  
Quad Cities Station nuclear decommissioning trust funds      
Investments:      
Restricted cash and cash equivalents and investments 959   979
Other restricted cash and cash equivalents      
Investments:      
Restricted cash and cash equivalents and investments 166   183
BHE Renewables tax equity investments      
Investments:      
Equity method investments 3,751   3,945
Electric Transmission Texas, LLC      
Investments:      
Equity method investments 856   835
Iroquois Gas Transmission System, L.P.      
Investments:      
Equity method investments 604   584
Other      
Investments:      
Equity method investments 321   336
U.S. Treasury Bills      
Investments:      
Other investments 43   42
Company-owned life insurance      
Investments:      
Other investments 553   572
Other      
Investments:      
Other investments $ 342   $ 386