Other Income and Other Expense (APSC) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Other income:
Interest income	$ 251	$ 76
Miscellaneous	2,116	682
Total other income	2,367	758
Other expense:
Non-operating costs	(2,372)	(1,932)
Miscellaneous	(2,172)	(1,708)
Total other expense	(4,684)	(3,752)
ARIZONA PUBLIC SERVICE COMPANY
Other income:
Interest income	138	23
Miscellaneous	2,624	1,320
Total other income	2,762	1,343
Other expense:
Non-operating costs	(2,587)	(2,320)
Asset dispositions	(183)	(1,264)
Miscellaneous	(2,286)	(2,712)
Total other expense	$ (5,056)	$ (6,296)