Income Taxes (Tables)

6 Months Ended

Jun. 30, 2017

Schedule of Effective Income Tax Rate Reconciliation [Line Items]

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of the federal statutory income tax rate to the effective income tax rate applicable to income before income tax expense is as follows:

	Three-Month Periods				Six-Month Periods
	Ended June 30,				Ended June 30,
	2017		2016		2017		2016
Federal statutory income tax rate	35	%	35	%	35	%	35	%
Income tax credits	(19	)	(12	)	(17	)	(13	)
State income tax, net of federal income tax benefit	1		1		(2	)	(1	)
Income tax effect of foreign income	(5	)	(6	)	(5	)	(5	)
Equity income	1		2		1		2
Other, net	—		(1	)	(1	)	(1	)
Effective income tax rate	13	%	19	%	11	%	17	%

MidAmerican Energy Company [Member]

Schedule of Effective Income Tax Rate Reconciliation [Line Items]

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of the federal statutory income tax rate to MidAmerican Energy's effective income tax rate applicable to income before income tax benefit is as follows:

	Three-Month Periods				Six-Month Periods
	Ended June 30,				Ended June 30,
	2017		2016		2017		2016
Federal statutory income tax rate	35	%	35	%	35	%	35	%
Income tax credits	(67	)	(60	)	(73	)	(59	)
State income tax, net of federal income tax benefit	(4	)	(5	)	(2	)	(1	)
Effects of ratemaking	(5	)	(2	)	(7	)	(6	)
Effective income tax rate	(41	)%	(32	)%	(47	)%	(31	)%

MidAmerican Funding, LLC and Subsidiaries [Domain]

Schedule of Effective Income Tax Rate Reconciliation [Line Items]

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of the federal statutory income tax rate to MidAmerican Funding's effective income tax rate applicable to income before income tax benefit is as follows:

	Three-Month Periods				Six-Month Periods
	Ended June 30,				Ended June 30,
	2017		2016		2017		2016
Federal statutory income tax rate	35	%	35	%	35	%	35	%
Income tax credits	(71	)	(63	)	(78	)	(63	)
State income tax, net of federal income tax benefit	(5	)	(5	)	(2	)	(2	)
Effects of ratemaking	(5	)	(2	)	(8	)	(6	)
Other, net			—		—		1
Effective income tax rate	(46	)%	(35	)%	(53	)%	(35	)%