CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (APSC) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
NET INCOME	$ 252,863	$ 262,785	$ 382,493	$ 346,950
Derivative instruments:
Net unrealized loss, net of tax benefit of $47 and $10,057 for three months ended September 30, 2012 and 2011 and $14,820 and $16,116 for nine months ended September 30, 2012 and 2011, respectively	(72)	(15,402)	(22,696)	(24,679)
Reclassification of net realized loss, net of tax benefit of $19,547 and $23,366 for three months ended September 30, 2012 and 2011 and $34,367 and $39,221 for nine months ended September 30, 2012 and 2011, respectively	29,935	35,783	52,632	60,065
Pension and other postretirement benefits activity, net of tax expense of $568 and $431 for three months ended September 30, 2012 and 2011 and $1,409 and $1,794 for nine months ended September 30, 2012 and 2011, respectively	980	750	2,752	2,838
Total other comprehensive income	30,843	21,131	32,688	38,224
COMPREHENSIVE INCOME	283,706	283,916	415,181	385,174
Less: Comprehensive income attributable to noncontrolling interests	8,040	7,426	23,582	20,041
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	275,666	276,490	391,599	365,133
ARIZONA PUBLIC SERVICE COMPANY
NET INCOME	255,871	253,768	392,227	342,051
Derivative instruments:
Net unrealized loss, net of tax benefit of $47 and $10,057 for three months ended September 30, 2012 and 2011 and $14,820 and $16,116 for nine months ended September 30, 2012 and 2011, respectively	(72)	(15,400)	(22,693)	(24,676)
Reclassification of net realized loss, net of tax benefit of $19,547 and $23,366 for three months ended September 30, 2012 and 2011 and $34,367 and $39,221 for nine months ended September 30, 2012 and 2011, respectively	29,931	35,778	52,625	60,056
Pension and other postretirement benefits activity, net of tax expense of $568 and $431 for three months ended September 30, 2012 and 2011 and $1,409 and $1,794 for nine months ended September 30, 2012 and 2011, respectively	869	660	2,158	2,746
Total other comprehensive income	30,728	21,038	32,090	38,126
COMPREHENSIVE INCOME	286,599	274,806	424,317	380,177
Less: Comprehensive income attributable to noncontrolling interests	8,040	7,435	23,573	20,089
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	$ 278,559	$ 267,371	$ 400,744	$ 360,088