Risk Management and Fair Values (Narrative) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($) MMBTU GWh	Dec. 31, 2022 USD ($)
Total volume of fixed transmission rights outstanding | GWh	140,203
Letters Of Credit	$ 3.0
Entergy Arkansas [Member]
Letters of Credit Outstanding, Amount	$ 5.9
Total volume of fixed transmission rights outstanding | GWh	34,517
Entergy Louisiana [Member]
Total volume of fixed transmission rights outstanding | GWh	60,886
Entergy Mississippi [Member]
Letters of Credit Outstanding, Amount		$ 0.2
Total volume of fixed transmission rights outstanding | GWh	17,426
Entergy New Orleans [Member]
Letters of Credit Outstanding, Amount		0.2
Total volume of fixed transmission rights outstanding | GWh	5,439
Entergy Texas [Member]
Letters of Credit Outstanding, Amount		2.4
Total volume of fixed transmission rights outstanding | GWh	21,597
Gas Hedge Contracts [Member]
Total volume of natural gas swaps outstanding (MMBtu) | MMBTU	21,084,400
Gas Hedge Contracts [Member] | Entergy Louisiana [Member]
Maximum Length of Time Hedged in Cash Flow Hedge	9 months
Total volume of natural gas swaps outstanding (MMBtu) | MMBTU	5,500,000
Gas Hedge Contracts [Member] | Entergy Mississippi [Member]
Maximum Length of Time Hedged in Cash Flow Hedge	9 months
Total volume of natural gas swaps outstanding (MMBtu) | MMBTU	15,305,100
Gas Hedge Contracts [Member] | Entergy New Orleans [Member]
Maximum Length of Time Hedged in Cash Flow Hedge	9 months
Total volume of natural gas swaps outstanding (MMBtu) | MMBTU	279,300
Entergy Wholesale Commodities [Member]
Cash collateral posted		8.0
Utility [Member]
Letters Of Credit	$ 6.0	$ 3.0