Short-term Debt and Credit Facilities - Schedule of Line of Credit Facilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Line of Credit Facility [Line Items]
Credit facilities	$ 11,281	$ 11,030
Short-term debt	(2,009)	(2,286)
Tax-exempt bond support and letters of credit	(589)	(590)
Net credit facilities	8,683	8,154
BHE
Line of Credit Facility [Line Items]
Credit facilities	3,500	3,500
Short-term debt	0	0
Tax-exempt bond support and letters of credit	0	0
Net credit facilities	3,500	3,500
PAC
Line of Credit Facility [Line Items]
Credit facilities	1,200	1,200
Short-term debt	0	(93)
Tax-exempt bond support and letters of credit	(218)	(218)
Net credit facilities	982	889
MidAmerican Funding
Line of Credit Facility [Line Items]
Credit facilities	1,509	1,509
Short-term debt	0	0
Tax-exempt bond support and letters of credit	(370)	(370)
Net credit facilities	1,139	1,139
NV Energy
Line of Credit Facility [Line Items]
Credit facilities	650	650
Short-term debt	(339)	(45)
Tax-exempt bond support and letters of credit	0	0
Net credit facilities	311	605
Northern Powergrid
Line of Credit Facility [Line Items]
Credit facilities	271	228
Short-term debt	(1)	(23)
Tax-exempt bond support and letters of credit	0	0
Net credit facilities	270	205
Line of credit, amount drawn	1	23
BHE Canada
Line of Credit Facility [Line Items]
Credit facilities	851	923
Short-term debt	(245)	(225)
Tax-exempt bond support and letters of credit	(1)	(2)
Net credit facilities	605	696
HomeServices
Line of Credit Facility [Line Items]
Credit facilities	3,300	3,020
Short-term debt	(1,424)	(1,900)
Tax-exempt bond support and letters of credit	0	0
Net credit facilities	$ 1,876	$ 1,120