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, 2018						$ 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						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						8,295	2	0	4,479	3,826	(12)
Stockholders' Equity Attributable to Parent at Dec. 31, 2019	32,449					8,437	2	0	4,479	3,972	(16)
Net Income (Loss) Attributable to Parent	4,628					628				628
Total other comprehensive (loss) income, net of tax	(177)	0	0	0	(177)	1				0	1
Stockholders' Equity Attributable to Parent at Sep. 30, 2020	36,768					9,066	2	0	4,479	4,600	(15)
Stockholders' Equity Attributable to Parent at Jun. 30, 2020						8,780	2	0	4,479	4,314	(15)
Net Income (Loss) Attributable to Parent	2,842					286				286
Total other comprehensive (loss) income, net of tax	242	$ 0	$ 0	$ 0	$ 242
Stockholders' Equity Attributable to Parent at Sep. 30, 2020	$ 36,768					$ 9,066	$ 2	$ 0	$ 4,479	$ 4,600	$ (15)