CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
NET INCOME	$ 9,326	$ 20,727
Derivative instruments:
Net unrealized gain (loss), net of tax benefit (expense)	(693)	(800)
Reclassification of net realized loss, net of tax benefit	1,141	1,976
Pension and other postretirement benefits activity, net of tax benefit (expense)	530	583
Total other comprehensive income	978	1,759
COMPREHENSIVE INCOME	10,304	22,486
Less: Comprehensive income attributable to noncontrolling interests	4,873	4,605
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	5,431	17,881
Arizona Public Service Company
NET INCOME	12,126	24,473
Derivative instruments:
Net unrealized gain (loss), net of tax benefit (expense)	(693)	(800)
Reclassification of net realized loss, net of tax benefit	1,141	1,976
Pension and other postretirement benefits activity, net of tax benefit (expense)	611	681
Total other comprehensive income	1,059	1,857
COMPREHENSIVE INCOME	13,185	26,330
Less: Comprehensive income attributable to noncontrolling interests	4,873	4,605
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	$ 8,312	$ 21,725