CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (APSC) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net unrealized gain (loss), tax benefit (expense)	$ (1,781)	$ 6,448	$ 14,770	$ 6,058
Reclassification of net realized loss, tax benefit	9,090	9,988	14,818	15,852
Pension and other postretirement benefits activity, tax expense	526	797	1,157	1,363
ARIZONA PUBLIC SERVICE COMPANY
Net unrealized gain (loss), tax benefit (expense)	(1,781)	6,449	14,773	6,059
Reclassification of net realized loss, tax benefit	9,092	9,990	14,820	15,855
Pension and other postretirement benefits activity, tax expense	$ 305	$ 853	$ 841	$ 1,362