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Revenue Recognition (Allowance for Doubtful Accounts) (Details) - USD ($) $ in Millions | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Disaggregation of Revenue [Line Items] |  |  |  |
Allowance for Doubtful Other Receivables, Current | $ 21.8 | $ 25.6 | $ 30.9 | $ 68.6
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | 15.5 | 11.0 |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff | (51.5) | (75.5) |  |
Accounts Receivable, Allowance for Credit Loss, Recovery | 26.9 | 21.5 |  |
COVID-19 Pandemic [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | (8.9) |  |
Entergy Arkansas [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Allowance for Doubtful Other Receivables, Current | 5.2 | 6.2 | 6.5 | 13.1
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | 3.2 | 8.2 |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff | (13.2) | (21.8) |  |
Accounts Receivable, Allowance for Credit Loss, Recovery | 8.7 | 6.7 |  |
Entergy Arkansas [Member] | COVID-19 Pandemic [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | 3.9 |  |
Entergy Louisiana [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Allowance for Doubtful Other Receivables, Current | 4.9 | 7.7 | 7.6 | 29.2
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | 7.0 | 0.4 |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff | (21.4) | (29.8) |  |
Accounts Receivable, Allowance for Credit Loss, Recovery | 11.7 | 7.9 |  |
Entergy Louisiana [Member] | COVID-19 Pandemic [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | (8.5) |  |
Entergy Mississippi [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Allowance for Doubtful Other Receivables, Current | 2.4 | 2.2 | 2.5 | 7.2
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | 2.1 | 0.2 |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff | (3.7) | (7.4) |  |
Accounts Receivable, Allowance for Credit Loss, Recovery | 1.5 | 2.2 |  |
Entergy New Orleans [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Allowance for Doubtful Other Receivables, Current | 7.6 | 6.9 | 11.9 | 13.3
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | 0.7 | 0.9 |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff | (6.5) | (10.4) |  |
Accounts Receivable, Allowance for Credit Loss, Recovery | 1.5 | 3.1 |  |
Entergy New Orleans [Member] | COVID-19 Pandemic [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | (3.0) |  |
Entergy Texas [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Allowance for Doubtful Other Receivables, Current | 1.7 | 2.6 | $ 2.4 | $ 5.8
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | 2.5 | 1.3 |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff | (6.7) | (6.1) |  |
Accounts Receivable, Allowance for Credit Loss, Recovery | $ 3.5 | 1.6 |  |
Entergy Texas [Member] | COVID-19 Pandemic [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | $ (1.3) |  |

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