v3.26.1
Debt and Liquidity Matters (Tables)
 6 Months Ended
Jun. 30, 2026
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 June 30, 2026As of December 31, 2025
Carrying
Amount		Fair ValueCarrying
Amount		Fair Value
Pinnacle West$1,815,466 $1,937,539 $1,665,736 $1,731,388 
APS8,735,342 7,943,535 8,139,940 7,433,142 
Total$10,550,808 $9,881,074 $9,805,676 $9,164,530