Consolidated Statements of Comprehensive Income - MidAmerican Funding - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net Income (Loss) Attributable to Parent	$ 490	$ 469
Unrealized gains on available-for-sale securities, net of tax of $22 and $113	33	166
Unrealized (losses) gains on cash flow hedges, net of tax of $(14) and $1	(23)	1
Total other comprehensive income (loss), net of tax	99	(235)
Comprehensive income attributable to BHE shareholders	589	234
MidAmerican Funding, LLC and Subsidiaries [Domain]
Net Income (Loss) Attributable to Parent	73	99
Unrealized gains on available-for-sale securities, net of tax of $22 and $113	1	0
Unrealized (losses) gains on cash flow hedges, net of tax of $(14) and $1	0	2
Total other comprehensive income (loss), net of tax	1	2
Comprehensive income attributable to BHE shareholders	$ 74	$ 101