Schedule II Consolidated Valuation and Qualifying Accounts Schedule II Consolidated Valuation and Qualifying Accounts - LLC - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances and Reserves, Balance		$ 33	$ 31	$ 37	$ 33
Valuation Allowances and Reserves, Charged to Cost and Expense		39	33	37
Valuation Allowances and Reserves, Deductions		37	39	33
Reserves not deducted from assets [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances and Reserves, Balance	[1]	13	13	11	9
Valuation Allowances and Reserves, Charged to Cost and Expense	[1]	5	7	12
Valuation Allowances and Reserves, Deductions	[1]	5	5	10
MidAmerican Funding, LLC and Subsidiaries [Domain] | Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances and Reserves, Balance		7	6	7	10
Valuation Allowances and Reserves, Charged to Cost and Expense		7	7	7
Valuation Allowances and Reserves, Deductions		6	8	10
MidAmerican Funding, LLC and Subsidiaries [Domain] | Reserves not deducted from assets [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances and Reserves, Balance		13	13	11	$ 9
Valuation Allowances and Reserves, Charged to Cost and Expense		5	7	12
Valuation Allowances and Reserves, Deductions		$ 5	$ 5	$ 10

[1] serves not deducted from assets relate primarily to estimated liabilities for losses retained by BHE for workers compensation, public liability and property damage claims.