Regulatory Matters - Schedule Of Capital Structure And Cost Of Capital (Details) - APS - Rate Case Filing with Arizona Corporation Commission - ACC	Jun. 13, 2025
Capital Structure
Requested debt capital structure, percentage	47.65%
Requested equity capital structure, percentage	52.35%
Cost of Capital
Requested Long-term debt cost of capital, percentage	4.26%
Requested equity cost of capital, percentage	10.70%
Requested weighted average cost of capital, percentage	7.63%

Capital Structure [Abstract]

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Cost Of Capital [Abstract]

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Public Utilities, Requested Equity Cost Of Capital, Percentage

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Public Utilities, Requested Long-Term Debt Cost Of Capital, Percentage

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Public Utilities, Requested Weighted Average Cost Of Capital, Percentage

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Percentage of public utility's requested debt to capital, including debt and equity.

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Percentage of public utility's requested equity to capital, including debt and equity.

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