Discontinued Operations Discontinued Operations - Unregulated Retail Services [Member]

12 Months Ended

Dec. 31, 2017

MidAmerican Funding, LLC and Subsidiaries [Domain]

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Discontinued Operations, Disclosure

Discontinued Operations

Refer to Note 3 of MidAmerican Energy's Notes to Financial Statements. The transfer of MidAmerican Energy's unregulated retail services business to a subsidiary of BHE repaid $117 million of MHC's note payable to BHE.

MidAmerican Energy Company [Member]

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Discontinued Operations, Disclosure

Discontinued Operations

On January 1, 2016, MidAmerican Energy transferred the assets and liabilities of its unregulated retail services business to a subsidiary of BHE. The transfer was made at MidAmerican Energy's carrying value of the assets, liabilities and AOCI as of December 31, 2015, totaling $90 million, and was recorded by MidAmerican Energy as a noncash dividend. Financial results of the unregulated retail services business for the year ended December 31, 2015 have been reclassified to discontinued operations in the Statement of Operations. Significant line items constituting pre-tax income from discontinued operations and total cash flows from operating activities for the years ended December 31 are as follows (in millions):

	2015
Operating revenue	$	905
Cost of sales	$	854
Cash flows from operating activities	$	30