CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (APSC) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
NET INCOME	$ 413,164	$ 366,940	$ 370,209
Derivative instruments:
Net unrealized loss, net of tax benefit of $14,888, $37,397 and $61,358 (Note 18)	(22,763)	(57,271)	(93,939)
Reclassification of net realized loss, net of tax benefit of $39,119, $46,298 and $48,462 (Note 18)	59,887	70,902	74,287
Pension and other postretirement benefits activity, net of tax benefit of $408, $1,910 and $4,493 (Note 8)	1,031	(6,026)	(8,528)
Total other comprehensive income (loss)	38,155	7,605	(28,180)
COMPREHENSIVE INCOME	451,319	374,545	342,029
Less: Comprehensive income attributable to noncontrolling interests	31,622	27,467	20,156
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	419,697	347,078	321,873
ARIZONA PUBLIC SERVICE COMPANY
NET INCOME	427,110	363,773	355,826
Derivative instruments:
Net unrealized loss, net of tax benefit of $14,888, $37,397 and $61,358 (Note 18)	(22,775)	(57,262)	(93,929)
Reclassification of net realized loss, net of tax benefit of $39,119, $46,298 and $48,462 (Note 18)	59,888	70,891	74,278
Pension and other postretirement benefits activity, net of tax benefit of $408, $1,910 and $4,493 (Note 8)	(617)	(2,925)	(6,848)
Total other comprehensive income (loss)	36,496	10,704	(26,499)
COMPREHENSIVE INCOME	463,606	374,477	329,327
Less: Comprehensive income attributable to noncontrolling interests	31,613	27,524	20,163
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	$ 431,993	$ 346,953	$ 309,164