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The consolidated debt to total consolidated capitalization ratio, which the entity is required to maintain pursuant to a debt covenant.

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The actual consolidated debt to total consolidated capitalization ratio, which the entity is required to maintain pursuant to a debt covenant.

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Public Utilities, Solar and Battery Storage Capacity

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Represents the long-term debt authorization pursuant to an order from a regulatory authority.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Long-Term Debt and Liquidity Matters - Additional Information (Details) $ in Thousands						12 Months Ended
	Jan. 06, 2023 USD ($)	Sep. 15, 2022 USD ($)	Feb. 11, 2022 USD ($) MW	Jan. 06, 2022 USD ($)	Dec. 21, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 16, 2022 USD ($)	Nov. 08, 2022 USD ($)	Dec. 23, 2020 USD ($)	Dec. 17, 2020 USD ($)	Dec. 16, 2020 USD ($)
Long-Term Debt and Liquidity Matters [Line Items]
Issuance of long-term debt						$ 875,537	$ 746,999	$ 1,596,672
Maximum
Debt Provisions
Ratio of consolidated debt to consolidated capitalization (as a percent)						65.00%
Arizona Public Service Company
Long-Term Debt and Liquidity Matters [Line Items]
Issuance of long-term debt						$ 524,852	446,999	1,099,722
Equity infusion from Pinnacle West				$ 150,000
Debt Provisions
Actual ratio of consolidated debt to total consolidated capitalization required to be maintained as per the debt covenant (as a percent)						50.80%
Arizona Public Service Company \| Subsequent Event
Long-Term Debt and Liquidity Matters [Line Items]
Equity infusion from Pinnacle West	$ 150,000
Arizona Public Service Company \| Pollution Control Revenue Bonds
Long-Term Debt and Liquidity Matters [Line Items]
Notes issued		$ 32,000
Issuance of long-term debt		$ 128,000
Arizona Public Service Company \| ACC
Debt Provisions
Long term debt authorization												$ 8,000,000	$ 7,500,000
Bright Canyon Energy Corporation
Long-Term Debt and Liquidity Matters [Line Items]
Public Utilities, Solar and Battery Storage Capacity \| MW			31
Unsecured Senior Notes Maturing 2032 \| Arizona Public Service Company \| Senior Notes
Long-Term Debt and Liquidity Matters [Line Items]
Notes issued										$ 400,000
Interest rate (as a percent)										6.35%
Term Loan \| Non-Recourse Construction Term Loan Facility \| Bright Canyon Energy Corporation
Long-Term Debt and Liquidity Matters [Line Items]
Notes issued			$ 42,000
Long-term line of credit						$ 23,000
Bridge Loan \| Equity Bridge Loan Facility \| Bright Canyon Energy Corporation
Long-Term Debt and Liquidity Matters [Line Items]
Notes issued			33,000
Issuance of long-term debt						28,000
Letter of Credit \| Arizona Public Service Company
Long-Term Debt and Liquidity Matters [Line Items]
Outstanding letters of credit						10,000
Letter of Credit \| Bright Canyon Energy Corporation
Long-Term Debt and Liquidity Matters [Line Items]
Notes issued			5,000
Letter of Credit \| Revolving credit facility maturing May 2026 \| Arizona Public Service Company
Long-Term Debt and Liquidity Matters [Line Items]
Outstanding letters of credit						0
Letter of Credit \| Revolving credit facility maturing May 2026 \| Bright Canyon Energy Corporation
Long-Term Debt and Liquidity Matters [Line Items]
Outstanding letters of credit						2,500
Pinnacle West
Long-Term Debt and Liquidity Matters [Line Items]
Issuance of long-term debt						$ 300,000	$ 300,000	$ 496,950
Debt Provisions
Actual ratio of consolidated debt to total consolidated capitalization required to be maintained as per the debt covenant (as a percent)						57.70%
Pinnacle West \| Term Loan
Long-Term Debt and Liquidity Matters [Line Items]
Notes issued									$ 175,000		$ 150,000
Pinnacle West \| Term Loan \| Term Loan Maturing 2024
Long-Term Debt and Liquidity Matters [Line Items]
Notes issued					$ 450,000
Issuance of long-term debt				$ 300,000	$ 150,000
Pinnacle West \| Bridge Loan \| Bright Canyon Energy Corporation
Long-Term Debt and Liquidity Matters [Line Items]
Debt guarantee			$ 42,000
Pinnacle West \| Letter of Credit \| Revolving credit facility maturing May 2026
Long-Term Debt and Liquidity Matters [Line Items]
Outstanding letters of credit						$ 0