ARIZONA PUBLIC SERVICE COMPANY - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests	APS	APS Common Stock	APS Additional Paid-In Capital	APS Retained Earnings	APS Accumulated Other Comprehensive Income (Loss)	APS Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2021		113,014,528					71,264,947
Beginning balance at Dec. 31, 2021	$ 6,021,460	$ 2,702,743	$ 3,264,719	$ (54,861)	$ 115,260	$ 6,750,473	$ 178,162	$ 3,021,696	$ 3,470,235	$ (34,880)	$ 115,260
Increase (Decrease) in Shareholders' Equity
Equity infusion from Pinnacle West						150,000		150,000
Net income	520,512		507,594		12,918	538,781			525,863		12,918
Other comprehensive income	1,561			1,561		(432)				(432)
Dividends on common stock	(192,213)		(192,213)			(192,000)			(192,000)
Capital activities by noncontrolling activities	(10,628)				(10,628)	(10,628)					(10,628)
Other	2		2
Ending balance (in shares) at Sep. 30, 2022		113,108,728					71,264,947
Ending balance at Sep. 30, 2022	6,362,113	$ 2,720,364	3,580,102	(53,300)	117,550	7,236,194	$ 178,162	3,171,696	3,804,098	(35,312)	117,550
Beginning balance (in shares) at Jun. 30, 2022		113,078,049					71,264,947
Beginning balance at Jun. 30, 2022	6,021,523	$ 2,712,297	3,253,772	(54,814)	113,244	6,899,284	$ 178,162	3,171,696	3,472,403	(36,221)	113,244
Increase (Decrease) in Shareholders' Equity
Net income	330,632		326,326		4,306	335,999			331,693		4,306
Other comprehensive income	1,514			1,514		909				909
Other	4		4			2			2
Ending balance (in shares) at Sep. 30, 2022		113,108,728					71,264,947
Ending balance at Sep. 30, 2022	$ 6,362,113	$ 2,720,364	3,580,102	(53,300)	117,550	7,236,194	$ 178,162	3,171,696	3,804,098	(35,312)	117,550
Beginning balance (in shares) at Dec. 31, 2022	113,247,189	113,247,189					71,264,947
Beginning balance at Dec. 31, 2022	$ 6,159,876	$ 2,724,740	3,360,347	(31,435)	111,229	7,052,955	$ 178,162	3,171,696	3,607,464	(15,596)	111,229
Increase (Decrease) in Shareholders' Equity
Equity infusion from Pinnacle West						150,000		150,000
Net income	514,498		501,580		12,918	544,335			531,417		12,918
Other comprehensive income	1,001			1,001		493				493
Dividends on common stock	(195,981)		(195,981)			(196,000)			(196,000)
Capital activities by noncontrolling activities	(10,628)				(10,628)	(10,628)					(10,628)
Other	$ 1					1			0
Ending balance (in shares) at Sep. 30, 2023	113,414,167	113,414,167					71,264,947
Ending balance at Sep. 30, 2023	$ 6,488,205	$ 2,744,501	3,665,946	(30,434)	113,520	7,541,156	$ 178,162	3,321,696	3,942,881	(15,103)	113,520
Beginning balance (in shares) at Jun. 30, 2023		113,386,894					71,264,947
Beginning balance at Jun. 30, 2023	6,076,137	$ 2,736,112	3,267,731	(31,591)	109,213	7,134,586	$ 178,162	3,321,696	3,541,062	(15,547)	109,213
Increase (Decrease) in Shareholders' Equity
Net income	402,520		398,214		4,306	406,123			401,817		4,306
Other comprehensive income	1,157			1,157		444				444
Other	$ 2		1		1	3			2		1
Ending balance (in shares) at Sep. 30, 2023	113,414,167	113,414,167					71,264,947
Ending balance at Sep. 30, 2023	$ 6,488,205	$ 2,744,501	$ 3,665,946	$ (30,434)	$ 113,520	$ 7,541,156	$ 178,162	$ 3,321,696	$ 3,942,881	$ (15,103)	$ 113,520