Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Net income	$ 555	$ 566	$ 550
Other comprehensive income (loss), net of tax:
Unrecognized amounts on retirement benefits, net of tax of $(1), $(1) and $(1)	(2)	(1)	(4)
Comprehensive income	553	565	546
Comprehensive income attributable to noncontrolling interest	0	0	8
Comprehensive income attributable to PacifiCorp	$ 553	$ 565	$ 538