Organization and Basis of Presentation Organization and Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating Revenues	$ 3,223	$ 2,786
Net Income	386	320
Solar Source and Kalaeloa [Member]
Operating Revenues		4
Net Income		4
Power [Member]
Operating Revenues	1,700	1,451
Net Income	$ 164	$ 141