Disposal Group, Held-For-Sale, Income Tax Expense (Benefit)

No definition available.

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- Definition

Recognized tax benefit from changes in tax laws

+ References

No definition available.

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- Definition

Amount of deferred income tax expense (benefit) and income tax credits.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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-Paragraph 28
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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
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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.

+ References

No definition available.

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- Definition

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 increase (decrease) in the valuation allowance for deferred tax assets.

+ References

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-SubTopic 10
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- Definition

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 increase (decrease) in the income tax rates.

+ References

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- Definition

Amount recognized for uncertainty in income taxes classified as noncurrent.

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- Definition

Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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- Definition

Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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-Publisher FASB
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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Tax Contingency [Line Items]
Net uncertain tax liability	$ 10		$ 10
Interest and penalties on uncertain tax liability	1		1
Unrecognized tax benefits as a result of lapse of communication			9
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Deferred tax benefit	46		46
Held for sale criteria met, net state tax benefit	$ 18
Income tax benefit, change in tax rate			13
Change in valuation allowance, income tax benefit			$ 15
Houston Electric
Income Tax Contingency [Line Items]
Effective income tax rate	15.00%	16.00%	14.00%	15.00%
CERC Corp \| State and Local Jurisdiction
Income Tax Contingency [Line Items]
Deferred tax benefit			$ 26
Held for sale criteria met, net state tax benefit	$ 11
Change in valuation allowance, income tax benefit			$ 15
Continuing Operations
Income Tax Contingency [Line Items]
Effective income tax rate	(1.00%)	18.00%	10.00%	26.00%
Continuing Operations \| CERC Corp
Income Tax Contingency [Line Items]
Effective income tax rate	(45.00%)	(31.00%)	10.00%	17.00%
Discontinued Operations
Income Tax Contingency [Line Items]
Effective income tax rate	0.00%	475.00%	0.00%	(14.00%)
Discontinued Operations \| CERC Corp
Income Tax Contingency [Line Items]
Effective income tax rate	0.00%	200.00%	0.00%	4.00%
Coronavirus Aid Relief And Economic Security Act
Income Tax Contingency [Line Items]
Recognized tax benefit from changes in tax laws, CARES act		$ 0		$ 19