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	$ 2,286					602				602
Total other comprehensive (loss) income, net of tax	(184)	$ 0	$ 0	$ 0	$ (184)
Dividends, Common Stock, Cash						(400)				(400)
Stockholders' Equity Attributable to Parent at Sep. 30, 2018						7,757	2	0	4,479	3,291	(15)
Stockholders' Equity Attributable to Parent at Jun. 30, 2018						7,537	2	0	4,479	3,071	(15)
Net Income (Loss) Attributable to Parent	1,401					270				270
Total other comprehensive (loss) income, net of tax	(2)	0	0	0	(2)
Dividends, Common Stock, Cash						(50)				(50)
Stockholders' Equity Attributable to Parent at Sep. 30, 2018						7,757	2	0	4,479	3,291	(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	2,443					625				625
Total other comprehensive (loss) income, net of tax	(134)	0	0	0	(134)	0				(1)	1
Dividends, Common Stock, Cash						(175)				(175)
Stockholders' Equity Attributable to Parent at Sep. 30, 2019	31,608					8,295	2	0	4,479	3,826	(12)
Stockholders' Equity Attributable to Parent at Jun. 30, 2019						8,017	2	0	4,479	3,548	(12)
Net Income (Loss) Attributable to Parent	1,137					278				278
Total other comprehensive (loss) income, net of tax	(191)	$ 0	$ 0	$ 0	$ (191)
Stockholders' Equity Attributable to Parent at Sep. 30, 2019	$ 31,608					$ 8,295	$ 2	$ 0	$ 4,479	$ 3,826	$ (12)