ARIZONA PUBLIC SERVICE COMPANY - CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 631,643	$ 626,030	$ 518,781
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization including nuclear fuel	969,615	956,184	854,136
Allowance for equity funds used during construction	(61,146)	(38,620)	(53,118)
Deferred income taxes	(50,850)	(20,923)	(24,310)
Deferred investment tax credit	58,772	(8,253)	77,065
Changes in current assets and liabilities:
Customer and other receivables	(51,275)	(12,696)	(61,983)
Accrued unbilled revenues	3,211	(9,350)	(2,789)
Materials, supplies and fossil fuel	(63,711)	(7,895)	(42,911)
Income tax receivable	(5,979)	332	13,754
Deferred fuel and purchased power	(324,482)	(250,288)	(549,877)
Deferred fuel and purchased power amortization	463,011	425,886	547,243
Other current assets	(42,991)	(50,225)	(19,550)
Accounts payable	171,138	(7,214)	(75,623)
Accrued taxes	10,742	9,030	2,393
Other current liabilities	18,714	47,329	40,510
Change in unrecognized tax benefits	81,090	75	1,177
Change in long-term regulatory assets	91,373	43,305	53,112
Change in long-term regulatory liabilities	37,205	9,416	28,495
Change in other long-term assets	(283,507)	(132,563)	(195,598)
Change in operating lease assets	151,522	98,214	90,525
Change in other long-term liabilities	138,934	24,719	61,903
Change in operating lease liabilities	(165,391)	(93,214)	(65,779)
Net cash provided by operating activities	1,805,095	1,609,823	1,207,697
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(2,624,618)	(2,249,195)	(1,846,370)
Contributions in aid of construction	306,380	311,358	180,866
Allowance for borrowed funds used during construction	(47,733)	(48,270)	(43,564)
Proceeds from nuclear decommissioning trusts sales and other special use funds	1,855,200	1,686,094	1,679,722
Investment in nuclear decommissioning trusts and other special use funds	(1,858,991)	(1,709,526)	(1,681,845)
Other	(8,912)	(8,413)	(6,458)
Net cash used for investing activities	(2,378,674)	(1,933,630)	(1,694,249)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of long-term debt	1,742,754	1,313,229	689,349
Repayment of long-term debt	(800,000)	(875,000)	(32,740)
Short-term borrowings and (repayments) — net	213,555	(241,050)	241,900
Short-term debt borrowings under term loan facility	575,000	550,000	0
Short-term debt repayments under term loan facility	(600,000)	(350,000)	0
Dividends paid on common stock	(422,792)	(394,663)	(386,486)
Palo Verde sale leaseback noncontrolling interest acquisition	(198,744)	0	0
Capital activities by noncontrolling interests	(18,041)	(21,255)	(21,255)
Net cash provided by financing activities	576,345	322,690	486,675
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	2,766	(1,117)	123
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	3,838	4,955	4,832
CASH AND CASH EQUIVALENTS AT END OF PERIOD	6,604	3,838	4,955
APS
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	682,427	659,149	564,561
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization including nuclear fuel	969,547	956,009	854,051
Allowance for equity funds used during construction	(61,146)	(38,620)	(53,118)
Deferred income taxes	(58,483)	(56,461)	(10,314)
Deferred investment tax credit	58,772	(8,253)	77,065
Changes in current assets and liabilities:
Customer and other receivables	(66,312)	(13,570)	(62,716)
Accrued unbilled revenues	3,211	(9,350)	(2,789)
Materials, supplies and fossil fuel	(63,711)	(7,895)	(42,911)
Income tax receivable	5,463	(5,463)	1,102
Deferred fuel and purchased power	(324,482)	(250,288)	(549,877)
Deferred fuel and purchased power amortization	463,011	425,886	547,243
Other current assets	(46,286)	(14,704)	(20,243)
Accounts payable	166,924	(2,500)	(70,622)
Accrued taxes	(4,730)	19,410	5,542
Other current liabilities	16,162	31,982	62,212
Change in unrecognized tax benefits	81,090	75	1,177
Change in long-term regulatory assets	91,373	43,305	53,112
Change in long-term regulatory liabilities	37,205	9,416	28,495
Change in other long-term assets	(256,960)	(159,940)	(188,483)
Change in operating lease assets	151,394	97,989	90,234
Change in other long-term liabilities	147,447	27,127	57,397
Change in operating lease liabilities	(165,241)	(93,076)	(65,482)
Net cash provided by operating activities	1,826,675	1,610,228	1,275,636
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(2,624,618)	(2,249,195)	(1,825,585)
Contributions in aid of construction	306,380	311,358	180,866
Allowance for borrowed funds used during construction	(47,733)	(48,270)	(39,030)
Proceeds from nuclear decommissioning trusts sales and other special use funds	1,803,767	1,686,094	1,679,722
Investment in nuclear decommissioning trusts and other special use funds	(1,807,558)	(1,684,526)	(1,681,845)
Other	145	(1,660)	(1,397)
Net cash used for investing activities	(2,369,617)	(1,986,199)	(1,687,269)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of long-term debt	947,350	445,842	496,025
Repayment of long-term debt	(300,000)	(250,000)	0
Short-term borrowings and (repayments) — net	167,405	(192,950)	180,970
Short-term debt borrowings under term loan facility	400,000	350,000	0
Short-term debt repayments under term loan facility	(400,000)	(350,000)	0
Dividends paid on common stock	(429,700)	(401,400)	(393,600)
Equity infusion from Pinnacle West	375,000	795,000	150,000
Palo Verde sale leaseback noncontrolling interest acquisition	(198,744)	0	0
Capital activities by noncontrolling interests	(18,041)	(21,255)	(21,255)
Net cash provided by financing activities	543,270	375,237	412,140
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	328	(734)	507
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	3,815	4,549	4,042
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 4,143	$ 3,815	$ 4,549