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, 2015						$ 7,503	$ 2	$ 0	$ 4,479	$ 3,033	$ (11)
Net Income (Loss) Attributable to Parent	$ 490					165				165
Total other comprehensive (loss) income, net of tax	99	$ 0	$ 0	$ 0	$ 99
Dividends, Common Stock, Cash						(100)				(100)
Stockholders' Equity Attributable to Parent at Mar. 31, 2016						7,568	2	0	4,479	3,098	(11)
Stockholders' Equity Attributable to Parent at Dec. 31, 2016	24,327					7,390	2	0	4,479	2,921	(12)
Net Income (Loss) Attributable to Parent	556					179				179
Total other comprehensive (loss) income, net of tax	126	$ 0	$ 0	$ 0	$ 126
Dividends, Common Stock, Cash						(100)				(100)
Stockholders' Equity Attributable to Parent at Mar. 31, 2017	$ 24,982					$ 7,469	$ 2	$ 0	$ 4,479	$ 3,000	$ (12)