Long-Term Debt and Liquidity Matters (Tables)

3 Months Ended

Mar. 31, 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 March 31, 2020				As of December 31, 2019
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Pinnacle West	$	449,581	$	448,449	$	449,425	$	450,822
APS	5,033,743		5,634,265		5,183,133		5,743,570
Total	$	5,483,324	$	6,082,714	$	5,632,558	$	6,194,392