ARIZONA PUBLIC SERVICE COMPANY - CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 626,030	$ 518,781	$ 500,826
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization including nuclear fuel	956,184	854,136	817,814
Deferred fuel and purchased power	(250,288)	(549,877)	(291,992)
Deferred fuel and purchased power amortization	425,886	547,243	219,579
Allowance for equity funds used during construction	(38,620)	(53,118)	(45,263)
Deferred income taxes	(20,923)	(24,310)	43,202
Deferred investment tax credit	(8,253)	77,065	(5,893)
Changes in current assets and liabilities:
Customer and other receivables	(12,696)	(61,983)	(63,869)
Accrued unbilled revenues	(9,350)	(2,789)	(30,784)
Materials, supplies and fossil fuel	(7,895)	(42,911)	(83,469)
Income tax receivable	332	13,754	(6,572)
Other current assets	(50,225)	(19,550)	76,089
Accounts payable	(7,214)	(75,623)	90,076
Accrued taxes	9,030	2,393	(4,205)
Other current liabilities	47,329	40,510	(1,856)
Change in long-term regulatory assets	43,305	53,112	12,432
Change in long-term regulatory liabilities	9,416	28,495	(332,470)
Change in other long-term assets	(132,563)	(195,598)	159,030
Change in operating lease assets	98,214	90,525	105,359
Change in other long-term liabilities	24,794	63,080	170,359
Change in operating lease liabilities	(93,214)	(65,779)	(103,671)
Net cash provided by operating activities	1,609,823	1,207,697	1,241,441
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(2,249,195)	(1,846,370)	(1,707,490)
Contributions in aid of construction	311,358	180,866	137,436
Allowance for borrowed funds used during construction	(48,270)	(43,564)	(28,030)
Proceeds from nuclear decommissioning trust sales and other special use funds	1,686,094	1,679,722	1,207,713
Investment in nuclear decommissioning trust and other special use funds	(1,709,526)	(1,681,845)	(1,212,063)
Other	(8,413)	(6,458)	(15,612)
Net cash used for investing activities	(1,933,630)	(1,694,249)	(1,618,046)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of long-term debt	1,313,229	689,349	875,537
Repayments of Other Long-Term Debt	(875,000)	(32,740)	(150,000)
Short-term borrowings and (repayments) — net	(241,050)	241,900	48,720
Short-term debt borrowings under term loan facility	550,000	0	0
Short-term debt repayments under term loan facility	(350,000)	0	0
Dividends paid on common stock	(394,663)	(386,486)	(378,881)
Capital activities of noncontrolling interests	(21,255)	(21,255)	(21,255)
Net cash provided by financing activities	322,690	486,675	371,468
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(1,117)	123	(5,137)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	4,955	4,832	9,969
CASH AND CASH EQUIVALENTS AT END OF YEAR	3,838	4,955	4,832
Arizona Public Service Company
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	659,149	564,561	542,153
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization including nuclear fuel	956,009	854,051	817,729
Deferred fuel and purchased power	(250,288)	(549,877)	(291,992)
Deferred fuel and purchased power amortization	425,886	547,243	219,579
Allowance for equity funds used during construction	(38,620)	(53,118)	(45,263)
Deferred income taxes	(56,461)	(10,314)	(6,817)
Deferred investment tax credit	(8,253)	77,065	(5,893)
Changes in current assets and liabilities:
Customer and other receivables	(13,570)	(62,716)	(60,930)
Accrued unbilled revenues	(9,350)	(2,789)	(30,784)
Materials, supplies and fossil fuel	(7,895)	(42,911)	(83,469)
Income tax receivable	(5,463)	1,102	9,654
Other current assets	(14,704)	(20,243)	59,970
Accounts payable	(2,500)	(70,622)	79,492
Accrued taxes	19,410	5,542	4,734
Other current liabilities	31,982	62,212	1,190
Change in long-term regulatory assets	43,305	53,112	12,432
Change in long-term regulatory liabilities	9,416	28,495	(332,470)
Change in other long-term assets	(159,940)	(188,483)	170,587
Change in operating lease assets	97,989	90,234	105,058
Change in other long-term liabilities	27,202	58,574	168,503
Change in operating lease liabilities	(93,076)	(65,482)	(103,361)
Net cash provided by operating activities	1,610,228	1,275,636	1,230,102
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(2,249,195)	(1,825,585)	(1,655,051)
Contributions in aid of construction	311,358	180,866	137,436
Allowance for borrowed funds used during construction	(48,270)	(39,030)	(26,839)
Proceeds from nuclear decommissioning trust sales and other special use funds	1,686,094	1,679,722	1,207,713
Investment in nuclear decommissioning trust and other special use funds	(1,684,526)	(1,681,845)	(1,212,063)
Other	(1,660)	(1,397)	(727)
Net cash used for investing activities	(1,986,199)	(1,687,269)	(1,549,531)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of long-term debt	445,842	496,025	524,852
Repayments of Other Long-Term Debt	(250,000)	0	0
Short-term borrowings and (repayments) — net	(192,950)	180,970	46,300
Short-term debt borrowings under term loan facility	350,000	0	0
Short-term debt repayments under term loan facility	(350,000)	0	0
Dividends paid on common stock	(401,400)	(393,600)	(385,800)
Equity infusion from Pinnacle West	795,000	150,000	150,000
Capital activities of noncontrolling interests	(21,255)	(21,255)	(21,255)
Net cash provided by financing activities	375,237	412,140	314,097
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(734)	507	(5,332)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	4,549	4,042	9,374
CASH AND CASH EQUIVALENTS AT END OF YEAR	$ 3,815	$ 4,549	$ 4,042