Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current:
Federal	$ 35,617	$ (5,041)	$ 11,869
State	1,950	2,458	1,932
Total current	37,567	(2,583)	13,801
Deferred:
Federal	23,693	95,327	53,398
State	13,567	17,342	10,974
Total deferred	37,260	112,669	64,372
Income tax expense/(benefit)	74,827	110,086	78,173
Arizona Public Service Company
Current:
Federal	103,349	1,514	57,299
State	161	(11)	99
Total current	103,510	1,503	57,398
Deferred:
Federal	(31,860)	101,175	15,122
State	19,150	22,875	16,244
Total deferred	(12,710)	124,050	31,366
Income tax expense/(benefit)	$ 90,800	$ 125,553	$ 88,764