CONSOLIDATED BALANCE SHEETS (APSC) (Parenthetical) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
PROPERTY, PLANT AND EQUIPMENT (Notes 1, 6, and 10)
Accumulated depreciation of Palo Verde sale leaseback	$ 225,925	$ 222,055
Accumulated amortization on intangible assets	439,703	411,543
Accumulated amortization on nuclear fuel	146,057	133,950
ARIZONA PUBLIC SERVICE COMPANY
PROPERTY, PLANT AND EQUIPMENT (Notes 1, 6, and 10)
Accumulated depreciation of Palo Verde sale leaseback	225,925	222,055
Accumulated amortization on intangible assets	439,703	411,543
Accumulated amortization on nuclear fuel	$ 146,057	$ 133,950