|
Regulatory Matters (Refunds) (Details) (Duke Energy Florida [Member], USD $)
In Millions, unless otherwise specified |
9 Months Ended |
|---|---|
|
Sep. 30, 2014
|
|
|
Florida Public Service Commission Settlement Agreement 2012 [Member]
|
|
| Regulatory Assets Liabilities [Line Items] | |
| Total | $ 288 |
| Refunded to date | 233 |
| 2014 | 35 |
| 2015 | 10 |
| 2016 | 10 |
|
Retirement Decision Credits [Member]
|
|
| Regulatory Assets Liabilities [Line Items] | |
| Total | 100 |
| Refunded to date | |
| 2014 | |
| 2015 | 40 |
| 2016 | 60 |
|
Neil Settlement [Member]
|
|
| Regulatory Assets Liabilities [Line Items] | |
| Total | 490 |
| Refunded to date | 449 |
| 2014 | 41 |
| 2015 | |
| 2016 | |
|
Total Customer Refunds [Member]
|
|
| Regulatory Assets Liabilities [Line Items] | |
| Total | 878 |
| Refunded to date | 682 |
| 2014 | 76 |
| 2015 | 50 |
| 2016 | 70 |
|
Accelerated Regulatory Asset Recovery [Member]
|
|
| Regulatory Assets Liabilities [Line Items] | |
| Total | (130) |
| Refunded to date | (28) |
| 2014 | (9) |
| 2015 | (37) |
| 2016 | (56) |
|
Net Customer Refunds [Member]
|
|
| Regulatory Assets Liabilities [Line Items] | |
| Total | 748 |
| Refunded to date | 654 |
| 2014 | 67 |
| 2015 | 13 |
| 2016 | $ 14 |