Stock Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions |
|
1 Months Ended |
3 Months Ended |
9 Months Ended |
Jan. 28, 2016 |
Jan. 31, 2016 |
Mar. 31, 2016 |
Sep. 30, 2016 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Stock option granted (in shares) |
|
|
696,900
|
|
| Weighted-average grant-date fair value of options granted (in dollars per share) |
|
|
$ 7.40
|
|
| Stock options outstanding |
|
|
|
7,152,077
|
| Weighted-average exercise price of stock options outstanding (in dollars per share) |
|
|
|
$ 84.93
|
| Intrinsic value in the money stock options |
|
|
|
$ 17.7
|
| Vesting period of awards under Entergy's plans, years |
|
|
|
3 years
|
| Equity Ownership And Long Term Cash Incentive Plan Two Thousand Eleven [Member] |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Long-term incentive plan awards |
|
199,800
|
|
|
| LTIP awards granted value (in dollars per share) |
$ 84.52
|
|
|
|
| Restricted Awards [Member] |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Restricted stock awards granted |
|
370,000
|
|
|
| Restricted stock awards granted value (in dollars per share) |
$ 70.56
|
|
|
|