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Regulatory Matters - Capital Structure and Costs of Capital (Details) | Oct. 31, 2019
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Cost of Capital |
Long-term debt | 4.10%
Common stock equity | 10.15%
Weighted-average cost of capital | 7.41%
Retail Rate Case Filing with Arizona Corporation Commission | Arizona Public Service Company |
Capital Structure |
Common stock equity | 54.70%
Retail Rate Case Filing with Arizona Corporation Commission | ACC | Arizona Public Service Company |
Capital Structure |
Long-term debt | 45.30%

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