Components of Accumulated Other Comprehensive Income (Loss), Net (MEC) (Tables) (MidAmerican Energy Company [Member])

3 Months Ended

Mar. 31, 2014

MidAmerican Energy Company [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

Components of Accumulated Other Comprehensive Income (Loss), Net [Table Text Block]

The following table shows the change in accumulated other comprehensive income (loss), net ("AOCI") by each component of other comprehensive income, net of applicable income taxes, for the three-month period ended March 31, 2014 (in millions):

	Unrealized			Unrealized			Accumulated
	Losses on			Gains (Losses)			Other
	Available-For-Sale			on Cash Flow			Comprehensive
	Securities			Hedges			Income (Loss), Net
Balance, December 31, 2013	$	(4	)	$	(7	)	$	(11	)
Other comprehensive income	1			14			15
Balance, March 31, 2014	$	(3	)	$	7		$	4