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Investments and Restricted Cash and Cash Equivalents and Investments - BHE - Components and Investments (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Investments:      
Total investments $ 6,942   $ 6,462
Equity method investments 6,027   6,062
Restricted cash and cash equivalents and investments 888   890
Total investments and restricted cash and cash equivalents and investments 13,857   13,414
Reflected as:      
Other current assets 3,032   2,141
Noncurrent assets 10,825   11,273
Unrealized gains (losses) recognized on marketable securities held at the reporting date 529 $ (1,257)  
Net gains recognized on marketable securities sold during the period 170 0  
Gains (losses) on marketable securities, net 699 (1,257)  
Quad Cities Station nuclear decommissioning trust funds      
Investments:      
Restricted cash and cash equivalents and investments 696   664
Other restricted cash and cash equivalents      
Investments:      
Restricted cash and cash equivalents and investments 192   226
BHE Renewables tax equity investments      
Investments:      
Equity method investments 4,430   4,535
Electric Transmission Texas, LLC      
Investments:      
Equity method investments 641   623
Iroquois Gas Transmission System, L.P.      
Investments:      
Equity method investments 604   600
Other      
Investments:      
Equity method investments 352   304
BYD Company Limited common stock      
Investments:      
Total investments 3,321   3,763
Reflected as:      
Unrealized gains (losses) recognized on marketable securities held at the reporting date   $ (1,247)  
U.S. Treasury Bills      
Investments:      
Total investments 2,854   1,931
Rabbi trusts      
Investments:      
Total investments 449   433
Other      
Investments:      
Total investments $ 318   $ 335