Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net income	$ 2,400	$ 2,122	$ 1,676
Net income (loss) attributable to parent	2,370	2,095	1,636
Other comprehensive (loss) income, net of tax:
Unrecognized amounts on retirement benefits, net of tax	52	69	16
Foreign currency translation adjustment	(680)	(314)	74
Unrealized gains (losses) on available-for-sale securities, net of tax	225	(134)	263
Unrealized (losses) gains on cash flow hedges, net of tax	(11)	(18)	13
Total other comprehensive (loss) income, net of tax	(414)	(397)	366
Comprehensive income	1,986	1,725	2,042
Comprehensive income attributable to noncontrolling interests	30	27	40
Comprehensive income attributable to shareholders	1,956	1,698	2,002
Parent Company [Member]
Net income	2,373	2,097	1,637
Net income (loss) attributable to parent	2,370	2,095	1,636
Other comprehensive (loss) income, net of tax:
Total other comprehensive (loss) income, net of tax	(414)	(397)	366
Comprehensive income	1,959	1,700	2,003
Comprehensive income attributable to noncontrolling interests	3	2	1
Comprehensive income attributable to shareholders	1,956	1,698	2,002
PacifiCorp [Member]
Net income (loss) attributable to parent	695	698	682
Other comprehensive (loss) income, net of tax:
Unrecognized amounts on retirement benefits, net of tax	2	(4)	3
Total other comprehensive (loss) income, net of tax	2	(4)	3
Comprehensive income attributable to shareholders	697	694	685
MidAmerican Energy Company [Member]
Net income	462	417	350
Other comprehensive (loss) income, net of tax:
Unrealized gains (losses) on available-for-sale securities, net of tax	0	1	1
Unrealized (losses) gains on cash flow hedges, net of tax	(7)	(13)	12
Total other comprehensive (loss) income, net of tax	(7)	(12)	13
Comprehensive income	455	405	363
MidAmerican Funding, LLC and Subsidiaries [Domain]
Net income	458	409	341
Net income (loss) attributable to parent	458	409	340
Other comprehensive (loss) income, net of tax:
Unrealized gains (losses) on available-for-sale securities, net of tax	0	1	1
Unrealized (losses) gains on cash flow hedges, net of tax	(7)	(13)	12
Total other comprehensive (loss) income, net of tax	(7)	(12)	13
Comprehensive income	451	397	354
Comprehensive income attributable to noncontrolling interests	0	0	1
Comprehensive income attributable to shareholders	$ 451	$ 397	$ 353