Consolidated Statements of Changes in Equity - PacifiCorp - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income, Net [Member]	PacifiCorp [Member]	PacifiCorp [Member] Preferred Stock [Member]	PacifiCorp [Member] Common Stock [Member]	PacifiCorp [Member] Additional Paid-in Capital [Member]	PacifiCorp [Member] Retained Earnings [Member]	PacifiCorp [Member] Accumulated Other Comprehensive (Loss) Income, Net [Member]
Stockholders' Equity Attributable to Parent at Dec. 31, 2017						$ 7,555	$ 2	$ 0	$ 4,479	$ 3,089	$ (15)
Net Income (Loss) Attributable to Parent	$ 513					148				148
Total other comprehensive (loss) income, net of tax	68	$ 0	$ 0	$ 0	$ 68
Dividends, Common Stock, Cash						(250)				(250)
Stockholders' Equity Attributable to Parent at Mar. 31, 2018						7,453	2	0	4,479	2,987	(15)
Stockholders' Equity Attributable to Parent at Dec. 31, 2018	29,593					7,845	2	0	4,479	3,377	(13)
Net Income (Loss) Attributable to Parent	622					179				179
Total other comprehensive (loss) income, net of tax	115	$ 0	$ 0	$ 0	$ 115	1					1
Dividends, Common Stock, Cash						(175)				(175)
Stockholders' Equity Attributable to Parent at Mar. 31, 2019	$ 30,036					$ 7,850	$ 2	$ 0	$ 4,479	$ 3,381	$ (12)