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APS - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Pension and other postretirement benefits activity, tax benefit (expense) | $ 801 | $ (7,078) | $ (2,256)
Arizona Public Service Company |  |  |
Pension and other postretirement benefits activity, tax benefit (expense) | $ 536 | $ (6,332) | $ (1,990)

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