Authorization of repurchase of common stock.

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- Definition

Increase in Retained Earnings Resulting from Implementation of ASU 2017-12

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- Definition

Reduction to Retained Earnings Resulting from Implementation of ASU 2016-16

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- Definition

Tax Cuts and Jobs Act, Portion Reclassified from AOCI to Regulatory Liability for Income Taxes

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- Definition

Tax Cuts and Jobs Act, Portion Reclassified from AOCI to Retained Earnings

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Tax Cuts and Jobs Act, Reclassification from AOCI resulting from stranded tax effects

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No definition available.

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- Definition

Amount, after tax, of accumulated gain (loss) from increase (decrease) in instrument-specific credit risk of financial liability measured under fair value option.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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- Definition

The per share price of the Company's stock at which the contract holder of the freestanding contract has the right to purchase or sell the Company's stock at a future date.

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- Definition

The number of issuer's shares to which the forward contract is indexed.

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The maximum number of shares that could be issued to net share settle a contract, if applicable. If a contract does not have a fixed or determinable maximum number of shares that may be required to be issued, disclose the fact that a potentially infinite number of shares could be issued to settle the contract.

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- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

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-Topic 230
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- Definition

Dividends received on equity and other investments during the current period.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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-Paragraph 16
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The cash inflow from the additional capital contribution to the entity.

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-Topic 230
-SubTopic 10
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Common Equity Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands				1 Months Ended			3 Months Ended	12 Months Ended
	Jan. 01, 2019	Dec. 12, 2018	Jan. 01, 2018	May 31, 2019	Jun. 30, 2018	Oct. 31, 2010	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019
Authorization of repurchase of common stock						$ 500,000		$ 350,000
Common Stock, Dividends, Per Share, Declared								$ 3.74	$ 3.66	$ 3.58
Dividend payments received from subsidiaries								$ 113,000	$ 124,000	$ 27,000
Dividends, Common Stock, Cash								748,342	711,573	647,704
Forward Contract Indexed to Issuer's Equity, Indexed Shares				8,448,171							15,300,000
Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share				$ 74.45	$ 74.45
Payments of Stock Issuance Costs		$ 728		$ 7
Proceeds from Issuance of Common Stock		$ 500,000		$ 608,000				0	607,650	499,272
Accumulated Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, after Tax	$ (6,806)		$ (633,000)
Tax Cuts and Jobs Act, Reclassification from AOCI resulting from stranded tax effects							$ 15,500
Tax Cuts and Jobs Act, Portion Reclassified from AOCI to Retained Earnings							32,000			16,538
Tax Cuts and Jobs Act, Portion Reclassified from AOCI to Regulatory Liability for Income Taxes							$ 16,500
Revision Of Prior Period Accounting Standards Update Adjustment
us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification	1,000		$ 56,000
Increase in Retained Earnings Resulting from Implementation of ASU 2017-12	$ 8,000
Entergy Arkansas [Member]
Dividends, Common Stock, Cash								95,000	115,000	91,751
Entergy Mississippi [Member]
Dividends, Common Stock, Cash								10,000		10,000
System Energy [Member]
Dividends, Common Stock, Cash								80,653	124,250	67,720
Entergy New Orleans [Member]
Dividends, Common Stock, Cash										23,750
Common Stock [Member]
Dividends, Common Stock, Cash								$ 0	$ 0	$ 0
Forward Contract Indexed to Issuer's Equity, Shares		6,834,221						0	8,448,171	6,834,221
Tax Cuts and Jobs Act, Portion Reclassified from AOCI to Retained Earnings										$ 0
Common Stock [Member] \| System Energy [Member]
Dividends, Common Stock, Cash								$ 0	$ 0	$ 56,500