The sum of the current income tax expense or benefit attributable to non-controlling interests.

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The increase (decrease) during the reporting period in the account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa, due to the adoption of regulations.

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Represents the amount of interest income to be received on the overpayment of income taxes for certain adjustments that the company has filed, or will file, with the IRS.

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Amount of deferred tax liability attributable to taxable temporary differences.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible general business tax credit carryforwards.

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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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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other deductions.

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Amortization period for the recovery of regulatory liability, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of reasonable estimate for income tax expense (benefit) for which accounting for tax effect for remeasurement of deferred tax from change in tax rate is incomplete pursuant to Tax Cuts and Jobs Act.

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Income Taxes (Details) - USD ($)		3 Months Ended	12 Months Ended
Income Taxes (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2017	Sep. 30, 2019	Dec. 31, 2018
Income Taxes
Reduction in net deferred income tax liabilities				$ 1,140,000,000
Income tax benefit	$ 57,000,000	$ 62,000,000
Deferred Tax Liabilities, Gross	2,897,248,000	2,897,248,000	$ 2,897,248,000		$ 56,000,000	$ 2,702,353,000
Amortization period			28 years 6 months
Interest income to be received on the overpayment of income taxes for certain adjustments that we have filed, or will file, with the IRS (less than)	1,000,000	1,000,000	$ 1,000,000
General business tax credit carryforwards	62,000,000	62,000,000	62,000,000
increase (decrease) in deferred income taxes due to regulation adoption			39,000,000
Income tax expense benefit attributable to non controlling interests			0
ARIZONA PUBLIC SERVICE COMPANY
Income Taxes
Deferred Tax Liabilities, Gross	2,896,814,000	2,896,814,000	2,896,814,000			$ 2,701,930,000
State
Income Taxes
Amount of state loss carryforwards	23,000,000	23,000,000	23,000,000
Federal
Income Taxes
Amount of state loss carryforwards	$ 9,000,000	$ 9,000,000	$ 9,000,000