Schedule I Condensed Statements of Comprehensive Income Schedule I Condensed Statements of Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Financial Statements, Captions [Line Items]
Net income attributable to BHE shareholders	$ 2,950	$ 2,568	$ 2,870
Net income	2,968	2,591	2,910
Other comprehensive income (loss), net of tax	239	(462)	1,113
Comprehensive income	3,207	2,129	4,023
Comprehensive income attributable to noncontrolling interests	18	23	40
Comprehensive income attributable to BHE shareholders	3,189	2,106	3,983
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net income attributable to BHE shareholders	2,951	2,568	2,870
Net income	2,954	2,571	2,873
Other comprehensive income (loss), net of tax	239	(462)	1,113
Comprehensive income	3,193	2,109	3,986
Comprehensive income attributable to noncontrolling interests	3	3	3
Comprehensive income attributable to BHE shareholders	3,190	2,106	3,983
MidAmerican Funding LLC [Member]
Condensed Financial Statements, Captions [Line Items]
Net income attributable to BHE shareholders	$ 781	$ 669	$ 574