ARIZONA PUBLIC SERVICE COMPANY - CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
PROPERTY, PLANT AND EQUIPMENT
Plant in service and held for future use	$ 25,013,171	$ 24,211,167
Accumulated depreciation and amortization	(8,727,099)	(8,408,040)
Net	16,286,072	15,803,127
Construction work in progress	1,477,727	1,724,004
Palo Verde sale leaseback, net of accumulated depreciation (Note 6)	84,491	86,426
Intangible assets, net of accumulated amortization	593,017	267,110
Nuclear fuel, net of accumulated amortization	125,407	99,490
Total property, plant and equipment	18,566,714	17,980,157
INVESTMENTS AND OTHER ASSETS
Nuclear decommissioning trusts (Notes 11 and 12)	1,245,593	1,201,246
Other special use funds (Notes 11 and 12)	367,804	362,781
Other assets	119,395	102,845
Total investments and other assets	1,732,792	1,666,872
CURRENT ASSETS
Cash and cash equivalents	4,007	4,955
Customer and other receivables	564,399	513,892
Accrued unbilled revenues (Note 2)	314,718	167,553
Allowance for doubtful accounts (Note 2)	(15,826)	(22,433)
Materials and supplies (at average cost)	484,000	444,344
Fossil fuel (at average cost)	65,045	49,203
Assets from risk management activities (Note 7)	760	6,808
Deferred fuel and purchased power regulatory asset (Note 4)	322,667	463,195
Other regulatory assets (Note 4)	169,266	162,562
Other current assets	139,563	101,417
Total current assets	2,048,599	1,926,967
DEFERRED DEBITS
Regulatory assets (Note 4)	1,358,978	1,390,279
Operating lease right-of-use assets (Note 14)	1,599,331	1,309,975
Assets for pension and other postretirement benefits (Note 5)	339,071	323,438
Other	55,645	63,465
Total deferred debits	3,353,025	3,087,157
TOTAL ASSETS	25,701,130	24,661,153
CAPITALIZATION
Retained earnings	3,487,113	3,466,317
Accumulated other comprehensive loss (Note 13)	(33,294)	(33,144)
Total shareholder equity	6,211,139	6,177,664
Noncontrolling interests (Note 6)	105,183	107,198
Total equity	6,316,322	6,284,862
Long-term debt less current maturities (Note 3)	8,056,225	7,540,622
CURRENT LIABILITIES
Short-term borrowings (Note 3)	531,450	609,500
Accounts payable	548,840	442,455
Accrued taxes	201,214	166,833
Accrued interest	76,652	72,916
Common dividends payable	99,936	99,813
Customer deposits	41,558	42,037
Liabilities from risk management activities (Note 7)	104,309	80,913
Liabilities for asset retirements (Note 15)	37,306	28,550
Operating lease liabilities (Note 14)	107,232	67,883
Regulatory liabilities (Note 4)	230,551	209,923
Other current liabilities	132,976	193,524
Total current liabilities	3,112,024	2,889,347
DEFERRED CREDITS AND OTHER
Deferred income taxes	2,440,175	2,416,480
Regulatory liabilities (Note 4)	1,811,230	1,965,865
Liabilities for asset retirements (Note 15)	1,103,417	937,451
Liabilities for pension benefits (Note 5)	109,464	112,702
Liabilities from risk management activities (Note 7)	26,364	42,975
Customer advances	514,066	533,580
Coal mine reclamation	186,451	184,007
Deferred investment tax credit	253,661	257,743
Unrecognized tax benefits	35,138	33,861
Operating lease liabilities (Note 14)	1,515,169	1,210,189
Other	221,424	251,469
Total deferred credits and other	8,216,559	7,946,322
COMMITMENTS AND CONTINGENCIES (Note 8)
TOTAL LIABILITIES AND EQUITY	25,701,130	24,661,153
APS
PROPERTY, PLANT AND EQUIPMENT
Plant in service and held for future use	25,009,775	24,207,706
Accumulated depreciation and amortization	(8,723,836)	(8,404,721)
Net	16,285,939	15,802,985
Construction work in progress	1,477,727	1,724,004
Palo Verde sale leaseback, net of accumulated depreciation (Note 6)	84,491	86,426
Intangible assets, net of accumulated amortization	592,861	266,955
Nuclear fuel, net of accumulated amortization	125,407	99,490
Total property, plant and equipment	18,566,425	17,979,860
INVESTMENTS AND OTHER ASSETS
Nuclear decommissioning trusts (Notes 11 and 12)	1,245,593	1,201,246
Other special use funds (Notes 11 and 12)	367,804	362,781
Other assets	48,934	43,625
Total investments and other assets	1,662,331	1,607,652
CURRENT ASSETS
Cash and cash equivalents	3,865	4,549
Customer and other receivables	555,991	510,296
Accrued unbilled revenues (Note 2)	314,718	167,553
Allowance for doubtful accounts (Note 2)	(15,826)	(22,433)
Materials and supplies (at average cost)	484,000	444,344
Fossil fuel (at average cost)	65,045	49,203
Assets from risk management activities (Note 7)	760	6,808
Deferred fuel and purchased power regulatory asset (Note 4)	322,667	463,195
Other regulatory assets (Note 4)	169,266	162,562
Other current assets	97,761	64,311
Total current assets	1,998,247	1,850,388
DEFERRED DEBITS
Regulatory assets (Note 4)	1,358,978	1,390,279
Operating lease right-of-use assets (Note 14)	1,598,093	1,308,611
Assets for pension and other postretirement benefits (Note 5)	332,117	316,606
Other	55,273	63,059
Total deferred debits	3,344,461	3,078,555
TOTAL ASSETS	25,571,464	24,516,455
CAPITALIZATION
Common stock	178,162	178,162
Additional paid-in capital	3,771,696	3,321,696
Retained earnings	3,786,315	3,759,299
Accumulated other comprehensive loss (Note 13)	(17,036)	(17,219)
Total shareholder equity	7,719,137	7,241,938
Noncontrolling interests (Note 6)	105,183	107,198
Total equity	7,824,320	7,349,136
Long-term debt less current maturities (Note 3)	7,189,052	7,041,891
Total capitalization	15,013,372	14,391,027
CURRENT LIABILITIES
Short-term borrowings (Note 3)	455,700	532,850
Current maturities of long-term debt (Note 3)	300,000	250,000
Accounts payable	540,134	433,229
Accrued taxes	222,602	162,288
Accrued interest	73,325	72,548
Common dividends payable	100,000	99,800
Customer deposits	41,558	42,037
Liabilities from risk management activities (Note 7)	104,309	80,913
Liabilities for asset retirements (Note 15)	37,306	28,550
Operating lease liabilities (Note 14)	107,043	67,608
Regulatory liabilities (Note 4)	230,551	209,923
Other current liabilities	138,081	211,773
Total current liabilities	2,350,609	2,191,519
DEFERRED CREDITS AND OTHER
Deferred income taxes	2,443,350	2,431,697
Regulatory liabilities (Note 4)	1,811,230	1,965,865
Liabilities for asset retirements (Note 15)	1,103,417	937,451
Liabilities for pension benefits (Note 5)	104,089	106,215
Liabilities from risk management activities (Note 7)	26,364	42,975
Customer advances	514,066	533,580
Coal mine reclamation	186,451	184,007
Deferred investment tax credit	253,661	257,743
Unrecognized tax benefits	46,728	33,861
Operating lease liabilities (Note 14)	1,513,905	1,208,857
Other	204,222	231,658
Total deferred credits and other	8,207,483	7,933,909
COMMITMENTS AND CONTINGENCIES (Note 8)
TOTAL LIABILITIES AND EQUITY	$ 25,571,464	$ 24,516,455