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Summary of Significant Accounting Policies - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Cash and Cash Equivalents [Line Items] |  |  |
Income taxes, net of refunds | $ 46,227 | $ 229 | $ (3,019)
Interest, net of amounts capitalized | 245,271 | 227,584 | 216,951
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] |  |  |
Accrued capital expenditures | 114,999 | 167,733 | 113,502
Dividends declared but not paid | 97,895 | 95,988 | 93,531
Arizona Public Service Company |  |  |
Cash and Cash Equivalents [Line Items] |  |  |
Income taxes, net of refunds | 95,985 | 19,783 | 41,176
Interest, net of amounts capitalized | 227,159 | 217,749 | 206,328
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] |  |  |
Accrued capital expenditures | 116,533 | 167,657 | 113,502
Dividends declared but not paid | $ 97,900 | $ 96,000 | $ 93,500

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