Schedule II Consolidated Valuation and Qualifying Accounts Schedule II Consolidated Valuation and Qualifying Accounts - LLC (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount		$ 44	$ 42	$ 40	$ 33
Valuation Allowances and Reserves, Charged to Cost and Expense		47	43	42
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction		45	41	35
Reserves not deducted from assets [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	[1]	12	13	13	13
Valuation Allowances and Reserves, Charged to Cost and Expense	[1]	4	6	7
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	[1]	5	6	7
MidAmerican Funding, LLC and Subsidiaries [Domain] | SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount		5	7	7	7
Valuation Allowances and Reserves, Charged to Cost and Expense		9	8	8
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction		11	8	8
MidAmerican Funding, LLC and Subsidiaries [Domain] | Reserves not deducted from assets [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount		12	13	13	$ 13
Valuation Allowances and Reserves, Charged to Cost and Expense		4	6	7
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction		$ 5	$ 6	$ 7

[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.