Retirement And Other Postretirement Benefits (Narrative) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
12 Months Ended |
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Dec. 31, 2016 |
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
|
|
| Expected current year pension contributions |
|
|
$ 307,600
|
|
|
| Subsequent Event [Member] |
|
|
|
|
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
|
|
| Pension contributions made through Year To Date |
|
|
|
|
$ 390,100
|
| Entergy Arkansas [Member] |
|
|
|
|
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
|
|
| Expected current year pension contributions |
|
|
65,882
|
|
|
| Remaining estimated pension contributions to be made in current year |
$ 17,119
|
|
17,119
|
|
|
| Entergy Arkansas [Member] | Subsequent Event [Member] |
|
|
|
|
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
|
|
| Pension contributions made through Year To Date |
|
|
|
|
83,001
|
| Entergy Texas [Member] |
|
|
|
|
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
|
|
| Expected current year pension contributions |
|
|
12,649
|
|
|
| Remaining estimated pension contributions to be made in current year |
3,271
|
|
3,271
|
|
|
| Entergy Texas [Member] | Subsequent Event [Member] |
|
|
|
|
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
|
|
| Pension contributions made through Year To Date |
|
|
|
|
$ 15,920
|
| Non-Qualified Pension Plans [Member] |
|
|
|
|
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
|
|
| Settlement Charge Associated With Out Of Plan Payment Of Lump Sum Benefits |
|
|
3,700
|
|
|
| Non-Qualified Pension Plans [Member] | Parent Company [Member] |
|
|
|
|
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
|
|
| Net periodic benefit costs |
8,000
|
$ 4,500
|
16,500
|
$ 13,400
|
|
| Non-Qualified Pension Plans [Member] | Entergy Arkansas [Member] |
|
|
|
|
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
|
|
| Net periodic benefit costs |
105
|
113
|
317
|
339
|
|
| Non-Qualified Pension Plans [Member] | Entergy Texas [Member] |
|
|
|
|
|
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |
|
|
|
|
|
| Net periodic benefit costs |
$ 126
|
$ 149
|
$ 380
|
$ 447
|
|