Consolidated Statements of Changes in Equity - PacifiCorp - USD ($) $ in Millions	Total	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, 2014		$ 7,756	$ 2	$ 0	$ 4,479	$ 3,288	$ (13)
Net Income (Loss) Attributable to Parent	$ 469	134				134
Dividends, Common Stock, Cash		(450)				(450)
Stockholders' Equity Attributable to Parent at Mar. 31, 2015		7,440	2	0	4,479	2,972	(13)
Stockholders' Equity Attributable to Parent at Dec. 31, 2015	22,401	7,503	2	0	4,479	3,033	(11)
Net Income (Loss) Attributable to Parent	490	165				165
Dividends, Common Stock, Cash		(100)				(100)
Stockholders' Equity Attributable to Parent at Mar. 31, 2016	$ 22,990	$ 7,568	$ 2	$ 0	$ 4,479	$ 3,098	$ (11)