Other Income and Other Expense (APSC) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Other income:
Interest income	$ 116	$ 307	$ 1,291	$ 1,018
Miscellaneous	44	113	96	339
Total other income	160	420	1,387	1,357
Other expense:
Non-operating costs	(2,028)	(1,645)	(5,951)	(5,885)
Miscellaneous	(1,972)	(1,797)	(3,827)	(4,182)
Total other expense	(7,435)	(5,696)	(13,421)	(12,433)
ARIZONA PUBLIC SERVICE COMPANY
Other income:
Interest income	2	61	1,061	244
Miscellaneous	719	754	1,951	2,099
Total other income	721	815	3,012	2,343
Other expense:
Non-operating costs	(2,263)	(2,007)	(6,868)	(6,690)
Asset dispositions	(1,203)	(248)	(3,864)	(666)
Miscellaneous	(1,149)	(1,097)	(5,023)	(4,613)
Total other expense	$ (4,615)	$ (3,352)	$ (15,755)	$ (11,969)