Preferred and Preference Stock of Utility (Details) - Southern California Edison - Series J Preferred Stock	3 Months Ended
	Sep. 30, 2015 USD ($) $ / shares shares
Preferred and Preference Stock of Utility
Shares issued (in shares)	130,004
Preference stock dividend rate (percent)	5.375%
Liquidation value (in dollars per share) | $ / shares	$ 2,500
Stock redeemed | $	$ 325,000,000