Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Tabular reconciliation of the total amounts of unrecognized tax benefits, excluding interest and penalties, at the beginning and end of the year
Total unrecognized tax benefits, beginning of the year	$ 45,086	$ 45,655	$ 43,435
Additions for tax positions of the current year	1,399	3,305	3,418
Additions for tax positions of prior years	2,069	1,449	1,431
Reductions for tax positions of prior years for:
Changes in judgment	(3,495)	(2,659)	(1,965)
Settlements with taxing authorities	0	0	0
Lapses of applicable statute of limitations	(1,962)	(2,664)	(664)
Total unrecognized tax benefits, end of the year	43,097	45,086	45,655
Arizona Public Service Company
Tabular reconciliation of the total amounts of unrecognized tax benefits, excluding interest and penalties, at the beginning and end of the year
Total unrecognized tax benefits, beginning of the year	45,086	45,655	43,435
Additions for tax positions of the current year	1,399	3,305	3,418
Additions for tax positions of prior years	2,069	1,449	1,431
Reductions for tax positions of prior years for:
Changes in judgment	(3,495)	(2,659)	(1,965)
Settlements with taxing authorities	0	0	0
Lapses of applicable statute of limitations	(1,962)	(2,664)	(664)
Total unrecognized tax benefits, end of the year	$ 43,097	$ 45,086	$ 45,655