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Long-Term Debt and Liquidity Matters (Tables)
 9 Months Ended
Sep. 30, 2022
Debt Disclosure [Abstract]  
Schedule of estimated fair value of long-term debt, including current maturities The following table presents the estimated fair value of our long-term debt, including current maturities (dollars in thousands):
 As of September 30, 2022As of December 31, 2021
 Carrying
Amount		Fair ValueCarrying
Amount		Fair Value
Pinnacle West$947,752 $898,160 $797,042 $792,735 
APS6,396,740 5,167,359 6,266,693 6,933,619 
BCE27,341 27,628 — — 
Total$7,371,833 $6,093,147 $7,063,735 $7,726,354