Long-Term Debt and Liquidity Matters (Tables)

6 Months Ended

Jun. 30, 2020

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, 2020				As of December 31, 2019
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Pinnacle West	$	496,610	$	507,850	$	449,425	$	450,822
APS	5,425,551		6,386,439		5,183,133		5,743,570
Total	$	5,922,161	$	6,894,289	$	5,632,558	$	6,194,392