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Subsidiary Debt - BHE Renewables (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Par value $ 51,702  
Subsidiary debt    
Debt Instrument [Line Items]    
Par value 37,501  
Subsidiary debt 37,539 $ 36,659
BHE Renewables | Subsidiary debt    
Debt Instrument [Line Items]    
Par value 3,064  
Subsidiary debt $ 3,027 $ 3,043
Interest rate on derivatives 100.00%  
Variable rate 9.82%  
BHE Renewables | Subsidiary debt | Minimum    
Debt Instrument [Line Items]    
Fixed interest rate 3.23% 3.23%
BHE Renewables | Subsidiary debt | Maximum    
Debt Instrument [Line Items]    
Fixed interest rate 3.88% 3.88%
BHE Renewables | Subsidiary debt | Bishop Hill Holdings Senior Notes, 5.125%, due 2032    
Debt Instrument [Line Items]    
Stated rate 5.125%  
Par value $ 57  
Subsidiary debt $ 56 $ 62
BHE Renewables | Subsidiary debt | Solar Star Funding Senior Notes, 3.950%, due 2035    
Debt Instrument [Line Items]    
Stated rate 3.95%  
Par value $ 244  
Subsidiary debt $ 242 256
BHE Renewables | Subsidiary debt | Solar Star Funding Senior Notes, 5.375%, due 2035    
Debt Instrument [Line Items]    
Stated rate 5.375%  
Par value $ 787  
Subsidiary debt $ 781 819
BHE Renewables | Subsidiary debt | Grande Prairie Wind Senior Notes, 3.860%, due 2037    
Debt Instrument [Line Items]    
Stated rate 3.86%  
Par value $ 269  
Subsidiary debt $ 267 297
BHE Renewables | Subsidiary debt | Topaz Solar Farms Senior Notes, 5.750%, due 2039    
Debt Instrument [Line Items]    
Stated rate 5.75%  
Par value $ 573  
Subsidiary debt $ 568 600
BHE Renewables | Subsidiary debt | Topaz Solar Farms Senior Notes, 4.875%, due 2039    
Debt Instrument [Line Items]    
Stated rate 4.875%  
Par value $ 162  
Subsidiary debt $ 160 170
BHE Renewables | Subsidiary debt | Alamo 6 Senior Notes, 4.170%, due 2042    
Debt Instrument [Line Items]    
Stated rate 4.17%  
Par value $ 190  
Subsidiary debt 188 197
BHE Renewables | Subsidiary debt | Other    
Debt Instrument [Line Items]    
Par value 0  
Subsidiary debt 0 5
BHE Renewables | Subsidiary debt | TX Jumbo Road Term Loan, due 2025    
Debt Instrument [Line Items]    
Par value 97  
Subsidiary debt 96 117
BHE Renewables | Subsidiary debt | Marshall Wind Term Loan, due 2026    
Debt Instrument [Line Items]    
Par value 57  
Subsidiary debt 56 63
BHE Renewables | Subsidiary debt | Flat Top Wind I Term Loan, due 2028    
Debt Instrument [Line Items]    
Par value 102  
Subsidiary debt 99 113
BHE Renewables | Subsidiary debt | Mariah Del Norte Term Loan, due 2028    
Debt Instrument [Line Items]    
Par value 56  
Subsidiary debt 54 0
BHE Renewables | Subsidiary debt | Mariah Del Norte Term Loan, due 2032    
Debt Instrument [Line Items]    
Par value 142  
Subsidiary debt 138 0
BHE Renewables | Subsidiary debt | Pinyon Pines I and II Term Loans, due 2034    
Debt Instrument [Line Items]    
Par value 328  
Subsidiary debt $ 322 $ 344