APS - CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
PROPERTY, PLANT AND EQUIPMENT
Accumulated depreciation of Palo Verde sale leaseback	$ 264,624	$ 260,754
Accumulated amortization on intangible assets	885,505	817,961
Accumulated amortization on nuclear fuel	118,074	126,157
Arizona Public Service Company
PROPERTY, PLANT AND EQUIPMENT
Accumulated depreciation of Palo Verde sale leaseback	264,624	260,754
Accumulated amortization on intangible assets	884,371	816,827
Accumulated amortization on nuclear fuel	$ 118,074	$ 126,157

The accumulated depreciation and amortization related to the asset(s) sold in connection with the property sold to another party and leased back to the seller.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479741/842-40-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 840
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 50
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481266/840-40-55-50

Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 840
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 52
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481266/840-40-55-52

Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 840
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 51
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481266/840-40-55-51

Reference 5: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 840
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481192/840-30-45-1

Name:	us-gaap_SaleLeasebackTransactionAccumulatedDepreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant