CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (APSC) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 407,152	$ 382,493
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization including nuclear fuel	377,971	360,570
Deferred fuel and purchased power	13,093	51,533
Deferred fuel and purchased power amortization	23,158	(91,894)
Allowance for equity funds used during construction	(18,698)	(15,639)
Deferred income taxes	256,132	197,527
Deferred investment tax credit	16,164	8,974
Change in derivative instruments fair value	537	(943)
Changes in current assets and liabilities:
Customer and other receivables	(178,029)	(76,697)
Accrued unbilled revenues	(37,710)	(11,186)
Materials, supplies and fossil fuel	(8,914)	(23,873)
Income tax receivable	(131,128)	6,466
Other current assets	(12,246)	(10,035)
Accounts payable	44,704	(69,776)
Accrued taxes	58,919	69,899
Other current liabilities	4,096	17,071
Change in margin and collateral accounts - assets	(327)	1,980
Change in margin and collateral accounts - liabilities	15,000	114,579
Change in unrecognized tax benefits	(57,585)	(3,554)
Change in long-term income tax receivable	137,270	(1,320)
Change in other long-term assets	(24,345)	(13,885)
Change in other long-term liabilities	(2,884)	37,181
Net cash flow provided by operating activities	882,330	929,471
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(581,515)	(670,684)
Contributions in aid of construction	34,910	41,451
Allowance for borrowed funds used during construction	(10,861)	(10,428)
Proceeds from nuclear decommissioning trust sales	363,944	295,126
Investment in nuclear decommissioning trust	(376,881)	(308,063)
Other	(1,553)	(520)
Net cash flow used for investing activities	(571,956)	(653,118)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of long-term debt	136,307	351,081
Short-term borrowings - net	(92,175)
Repayment of long-term debt	(72,777)	(421,703)
Dividends paid on common stock	(174,485)	(167,074)
Noncontrolling interests	(9,197)	(2,630)
Net cash flow used for financing activities	(201,119)	(230,457)
NET INCREASE IN CASH AND CASH EQUIVALENTS	109,255	45,896
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	26,202	33,583
CASH AND CASH EQUIVALENTS AT END OF PERIOD	135,457	79,479
Cash paid during the period for:
Income taxes paid	3,412	(651)
Interest, net of amounts capitalized	141,047	152,582
Significant non-cash investing and financing activities:
Accrued capital expenditures	11,377	11,281
ARIZONA PUBLIC SERVICE COMPANY
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	420,283	392,227
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization including nuclear fuel	377,899	360,499
Deferred fuel and purchased power	13,093	51,533
Deferred fuel and purchased power amortization	23,158	(91,894)
Allowance for equity funds used during construction	(18,698)	(15,639)
Deferred income taxes	256,253	222,251
Deferred investment tax credit	16,164	8,974
Change in derivative instruments fair value	537	(943)
Changes in current assets and liabilities:
Customer and other receivables	(179,494)	(79,152)
Accrued unbilled revenues	(37,710)	(11,186)
Materials, supplies and fossil fuel	(8,914)	(23,873)
Income tax receivable	(125,509)	(775)
Other current assets	(11,449)	(10,446)
Accounts payable	43,886	(72,802)
Accrued taxes	61,649	62,834
Other current liabilities	1,073	112
Change in margin and collateral accounts - assets	(327)	1,980
Change in margin and collateral accounts - liabilities	15,000	114,579
Change in unrecognized tax benefits	(57,585)	(3,554)
Change in long-term income tax receivable	137,665	(1,320)
Change in other long-term assets	(28,686)	(17,185)
Change in other long-term liabilities	691	36,451
Net cash flow provided by operating activities	898,979	922,671
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(581,515)	(670,684)
Contributions in aid of construction	34,910	41,451
Allowance for borrowed funds used during construction	(10,861)	(10,428)
Proceeds from nuclear decommissioning trust sales	363,944	295,126
Investment in nuclear decommissioning trust	(376,881)	(308,063)
Other	(1,561)	(520)
Net cash flow used for investing activities	(571,964)	(653,118)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of long-term debt	136,307	351,081
Short-term borrowings - net	(92,175)
Repayment of long-term debt	(72,777)	(421,703)
Dividends paid on common stock	(179,600)	(162,400)
Noncontrolling interests	(9,197)	(2,630)
Net cash flow used for financing activities	(217,442)	(235,652)
NET INCREASE IN CASH AND CASH EQUIVALENTS	109,573	33,901
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	3,499	19,873
CASH AND CASH EQUIVALENTS AT END OF PERIOD	113,072	53,774
Cash paid during the period for:
Income taxes paid	3,412
Interest, net of amounts capitalized	138,626	149,338
Significant non-cash investing and financing activities:
Accrued capital expenditures	$ 11,377	$ 11,281