BHE Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Billions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Preferred stock, shares outstanding	2,000,000	4,000,000
BHE restricted net assets	$ 18.3
BHE's subsidiaries restricted net assets	$ 20.3
Natural Gas Transmission and Storage | Redeemable preferred stock
Class of Stock [Line Items]
Preferred stock, shares outstanding	1,649,988	3,750,000
Preferred stock, dividend rate	4.00%
Liquidation preference (in dollars per share)	$ 1,000