CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (APSC) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 84,165	$ 118,669
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization including nuclear fuel	245,700	229,964
Deferred fuel and purchased power	64,679	65,249
Deferred fuel and purchased power amortization	(68,762)	(55,494)
Allowance for equity funds used during construction	(11,319)	(10,893)
Deferred income taxes	11,945	50,972
Change in mark-to-market valuations	(279)	2,396
Changes in current assets and liabilities:
Customer and other receivables	43,271	(7,133)
Accrued unbilled revenues	(60,390)	(51,470)
Materials, supplies and fossil fuel	(18,226)	13,577
Other current assets	(37,053)	(8,340)
Accounts payable	37,817	45,313
Other current liabilities	3,967	(26,583)
Change in margin and collateral accounts - assets	21,185	656
Change in margin and collateral accounts - liabilities	39,567	(90,694)
Change in unrecognized tax benefits	18,959	(62,630)
Change in other long-term assets	(26,185)	(11,015)
Change in other long-term liabilities	57,748	(48,045)
Net cash flow provided by operating activities	436,279	201,414
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(387,272)	(378,579)
Contributions in aid of construction	21,905	15,163
Allowance for borrowed funds used during construction	(7,432)	(6,395)
Proceeds from sale of life insurance policies	55,444
Proceeds from nuclear decommissioning trust sales	299,600	329,796
Investment in nuclear decommissioning trust	(308,222)	(342,004)
Other	(2,352)	3,850
Net cash flow used for investing activities	(328,329)	(277,869)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayment of long-term debt	(187,962)	(15,221)
Dividends paid on common stock	(112,537)	(106,522)
Noncontrolling interests	(2,610)	(3,286)
Net cash flow provided by (used for) financing activities	(125,864)	(18,421)
NET DECREASE IN CASH AND CASH EQUIVALENTS	(17,914)	(94,876)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	110,188	145,378
CASH AND CASH EQUIVALENTS AT END OF PERIOD	92,274	50,502
Cash paid during the period for:
Income taxes, net of (refunds)		(3,944)
Interest, net of amounts capitalized	110,659	115,722
ARIZONA PUBLIC SERVICE COMPANY
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	88,279	111,110
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization including nuclear fuel	245,617	228,513
Deferred fuel and purchased power	64,679	65,249
Deferred fuel and purchased power amortization	(68,762)	(55,494)
Allowance for equity funds used during construction	(11,319)	(10,893)
Deferred income taxes	11,488	58,225
Change in mark-to-market valuations	(279)	2,396
Changes in current assets and liabilities:
Customer and other receivables	11,104	(4,062)
Accrued unbilled revenues	(60,390)	(51,470)
Materials, supplies and fossil fuel	(18,226)	13,577
Other current assets	(9,458)	(10,786)
Accounts payable	49,939	43,451
Other current liabilities	32,321	(33,793)
Change in margin and collateral accounts - assets	21,185	656
Change in margin and collateral accounts - liabilities	39,567	(90,694)
Change in long-term income tax receivable	(2,867)
Change in unrecognized tax benefits	18,972	(62,198)
Change in other long-term assets	(22,137)	(12,676)
Change in other long-term liabilities	66,290	(36,857)
Net cash flow provided by operating activities	456,003	154,254
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(387,932)	(378,239)
Contributions in aid of construction	21,905	15,163
Allowance for borrowed funds used during construction	(7,432)	(6,091)
Proceeds from sale of life insurance policies	44,183
Proceeds from nuclear decommissioning trust sales	299,600	329,796
Investment in nuclear decommissioning trust	(308,222)	(342,004)
Other	(2,352)	1,074
Net cash flow used for investing activities	(340,250)	(380,301)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayment of long-term debt	(12,962)	(9,296)
Equity infusion		252,833
Dividends paid on common stock	(114,300)	(99,400)
Noncontrolling interests	(2,610)	(3,286)
Net cash flow provided by (used for) financing activities	(129,872)	140,851
NET DECREASE IN CASH AND CASH EQUIVALENTS	(14,119)	(85,196)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	99,937	120,798
CASH AND CASH EQUIVALENTS AT END OF PERIOD	85,818	35,602
Cash paid during the period for:
Income taxes, net of (refunds)		65,498
Interest, net of amounts capitalized	$ 106,546	$ 106,485