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- Definition

Amount of Adjustment Representing Prorated Sales Losses Pending Approval

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- Definition

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Customer Support Fund, Past Due Balance Threshold

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- Definition

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- Definition

Historical Component Of PSA Rate1

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Increase (Decrease) In Amount Of Adjustment Representing Annual Recovery

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Increase (Decrease) In Amount Of Adjustment Representing Prorated Sales Losses

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- Definition

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PSA Rate In Prior Years1

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Public Utilities, Proposed Rate, Amount Of Customer Refunds

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Represents information pertaining to cap percentage of retail revenues.

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The period of time covered by a plan to implement a standard enacted by a regulatory authority.

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- Definition

Represents the amount of proposed budget.

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- Definition

Rate Matter, Request Second-Year Energy Price For Exported Energy1

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Rate Matter, Request Third-Year Energy Price For Exported Energy1

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Rate Matter, Proposed BudgetUpdated

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- Definition

Rate Matters, Cost Of Service, Resource Comparison Proxy Method, Maximum Annual Percentage Decrease

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Rate Matters, Court Resolution Surcharge Cap Rate1

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- Definition

Rate Matters, Decrease In Commercial Rates, Power

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Rate Matters, Increase (Decrease) In Cost Recovery

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Rate Matters, Increase (Decrease) In Cost Recovery, Retail Customer Rates

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Rate Matters, Increase (Decrease) in Cost Recovery, Wholesale Customer Rates

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Rate Matters, Increase (Decrease) In Retail Revenue Requirements

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Rate Matters, Increase In Residential And Commercial Rates, Power

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Rate Matters, Resource Comparison Proxy Method, Rate Lock Period

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- Definition

Regulatory Clause, Deferred Fuel And Purchased Power Costs, Balancing Account, Reporting Threshold Amount

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Regulatory Matters, Requested Rate Increase, Lost Revenue Recovery And Ongoing Costs

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Regulatory Matters, Requested Rate Increase, Lost Revenue Recovery And Ongoing Costs Collected

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- Definition

Transition Component Of PSA Rate1

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- Definition

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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Regulatory Matters - Cost Recovery Mechanisms (Details)																						3 Months Ended
Regulatory Matters - Cost Recovery Mechanisms (Details)	Nov. 27, 2024 $ / kWh	Jul. 31, 2024 USD ($)	Jun. 01, 2024 USD ($) MW	May 01, 2024 $ / kWh	Nov. 30, 2023 USD ($) $ / kWh	Oct. 25, 2023 USD ($)	Oct. 11, 2023	Jul. 31, 2023 USD ($)	Jul. 01, 2023 USD ($) $ / KWH_Kilowatt_hour	Jun. 01, 2023 USD ($)	May 01, 2023 $ / kWh	Feb. 23, 2023 $ / kWh	Feb. 01, 2023 $ / kWh	Jul. 12, 2022 $ / kWh	Jun. 01, 2022 USD ($)	Feb. 15, 2022 USD ($)	Feb. 01, 2022 $ / kWh	Oct. 01, 2021 $ / kWh	Feb. 15, 2021 USD ($)	Feb. 01, 2020 $ / kWh	Sep. 01, 2017	Mar. 31, 2025 USD ($)	Mar. 06, 2025 USD ($)	Jul. 01, 2024 USD ($)	Apr. 26, 2024 USD ($)	Jun. 30, 2023 USD ($)	May 31, 2023 USD ($)	Nov. 30, 2022 USD ($)	Jul. 01, 2022 USD ($)	Apr. 18, 2022 USD ($)	Dec. 17, 2021 USD ($)
APS \| Damage from Fire, Explosion or Other Hazard
Public Utilities, General Disclosures [Line Items]
Past due balance threshold qualifying for payment extension																														$ 75
Arizona Renewable Energy Standard and Tariff \| ACC \| APS
Public Utilities, General Disclosures [Line Items]
Plan term																						5 years
Arizona Renewable Energy Standard and Tariff 2018 \| ACC \| APS
Public Utilities, General Disclosures [Line Items]
Amount of proposed budget																								$ 92,700,000		$ 95,100,000			$ 86,200,000
Demand Side Management Adjustor Charge 2022 \| ACC \| APS
Public Utilities, General Disclosures [Line Items]
Amount of proposed budget																															$ 78,400,000
2023 Transportation Electrification Plan \| ACC \| APS
Public Utilities, General Disclosures [Line Items]
Amount of proposed budget																												$ 5,000,000
Demand Side Management Adjustor Charge 2023 \| ACC \| APS
Public Utilities, General Disclosures [Line Items]
Amount of proposed budget																											$ 88,000,000	$ 88,000,000
Demand Side Management Adjustor Charge 2024 \| ACC \| APS
Public Utilities, General Disclosures [Line Items]
Amount of proposed budget					$ 91,500,000
Rate matter, updated budget																									$ 90,900,000
Proposed rate on refund customers																							$ 9,000,000
Renewable Energy Adjustment Charge \| ACC \| APS
Public Utilities, General Disclosures [Line Items]
Proposed rate on refund customers																							$ 43,000,000
Power Supply Adjustor (PSA) \| ACC \| APS
Public Utilities, General Disclosures [Line Items]
PSA rate (in dollars per kWh) \| $ / kWh	0.013977				0.019074							0.019074	0.006				0.007544
Forward component of PSA rate1 (in dollars per kWh) \| $ / kWh	(0.000281)				(0.012624)							(0.005527)					0.004842
Historical component of PSA rate1 (in dollars per kWh) \| $ / kWh	0.008728				0.013071							0.013071					0.012386
Reporting threshold of balancing account					$ 100,000,000
Overall approved PSA rate1 (in dollars per kWh) \| $ / kWh					0.011977
Transition component of PSA rate \| $ / kWh	0.005530				0.011530
Power Supply Adjustor (PSA) \| ACC \| APS \| Cost Recovery Mechanisms
Public Utilities, General Disclosures [Line Items]
Maximum increase decrease in PSA rate (in dollars per kWh) \| $ / kWh	0.006																			0.006
PSA rate In prior years1 (in dollars per kWh) \| $ / kWh	0.002																0.004
Transmission rates, transmission cost adjustor and other transmission matters \| FERC \| APS
Public Utilities, General Disclosures [Line Items]
Rate matters, increase (decrease) In cost recovery			$ 27,400,000							$ 34,700,000					$ (33,000,000)
Rate matters, increase (decrease) in cost recovery, wholesale customer rates			16,600,000							20,700,000					(6,400,000)
Rate matters, increase (decrease) in cost recovery, retail customer rates			10,800,000							14,000,000					(26,600,000)
Rate matters, increase (decrease) In retail revenue requirements			$ 8,800,000							$ (10,000,000)					$ (2,400,000)
Rate matters, increase in residential and commercial rates (in MW) \| MW			3
Rate matters, decrease in commercial rates (in MW) \| MW			3
Lost Fixed Cost Recovery Mechanism \| APS
Public Utilities, General Disclosures [Line Items]
Rate matter cap percentage of retail revenue																						1.00%
Amount of adjustment approved representing prorated sales losses pending approval		$ 49,600,000						$ 68,700,000								$ 59,100,000
Increase in amount of adjustment representing prorated sales losses																$ 32,500,000			$ 11,800,000
Amount of adjustment representing annual recovery		$ 8,000,000						$ 9,600,000
Lost Fixed Cost Recovery Mechanism \| ACC
Public Utilities, General Disclosures [Line Items]
Amount of adjustment approved to transfer						$ 27,100,000
Court Resolution Surcharge \| ACC \| APS
Public Utilities, General Disclosures [Line Items]
Court resolution surcharge (in dollars per kWh) \| $ / KWH_Kilowatt_hour									0.00175
Lost revenue recovery									$ 59,600,000
Lost revenue recovery collected																						$ 29,500,000
Net Metering \| ACC \| APS
Public Utilities, General Disclosures [Line Items]
Rate matters, cost of service, resource comparison proxy method, maximum annual percentage decrease				10.00%			10.00%				10.00%			10.00%							10.00%
Rate matter, request second-year energy price for exported energy1 (in dollars per kwh) \| $ / kWh														0.0846				0.094
Third-year export energy price (in dollars per kWh) \| $ / kWh				0.06857							0.07619
Rate lock period							10 years