CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net unrealized gain (loss), tax benefit (expense)	$ (16)	$ (26)	$ (489)	$ (624)
Reclassification of net realized loss, tax benefit	556	1,261	923	2,584
Pension and other postretirement benefits activity, tax benefit (expense)	74	845	(793)	128
Arizona Public Service Company
Net unrealized gain (loss), tax benefit (expense)	(16)	(26)	(489)	(624)
Reclassification of net realized loss, tax benefit	556	1,261	923	2,584
Pension and other postretirement benefits activity, tax benefit (expense)	$ 47	$ 828	$ (722)	$ 222