CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
NET INCOME	$ 261,978	$ 248,086	$ 410,212	$ 414,161
Derivative instruments:
Net unrealized gain (loss), net of tax benefit (expense)	(151)	(91)	(926)	(472)
Reclassification of net realized loss, net of tax benefit	892	5,939	3,742	11,009
Pension and other postretirement benefits activity, net of tax benefit (expense)	869	5,967	1,335	5,114
Total other comprehensive income	1,610	11,815	4,151	15,651
COMPREHENSIVE INCOME	263,588	259,901	414,363	429,812
Less: Comprehensive income attributable to noncontrolling interests	4,862	4,125	14,072	21,976
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	258,726	255,776	400,291	407,836
Arizona Public Service Company
NET INCOME	266,049	255,172	420,489	427,460
Derivative instruments:
Net unrealized gain (loss), net of tax benefit (expense)	(151)	(91)	(926)	(472)
Reclassification of net realized loss, net of tax benefit	892	5,940	3,742	11,010
Pension and other postretirement benefits activity, net of tax benefit (expense)	870	735	1,477	18
Total other comprehensive income	1,611	6,584	4,293	10,556
COMPREHENSIVE INCOME	267,660	261,756	424,782	438,016
Less: Comprehensive income attributable to noncontrolling interests	4,862	4,125	14,072	21,976
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	$ 262,798	$ 257,631	$ 410,710	$ 416,040