Long-Term Debt and Liquidity Matters (Tables)

6 Months Ended

Jun. 30, 2021

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, 2021				As of December 31, 2020
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Pinnacle West	$	646,729	$	654,095	$	496,321	$	509,050
APS	5,819,198		6,746,984		5,817,945		7,103,791
Total	$	6,465,927	$	7,401,079	$	6,314,266	$	7,612,841