|
Long Term Debt (Details) (USD $)
In Millions, unless otherwise specified |
9 Months Ended |
|---|---|
|
Sep. 30, 2013
|
|
|
Wisc Gas Debentures Due Sept 15 2013 [Domain]
|
|
| Long Term Debt (Textuals) | |
| Retirement of long-term debt | $ 45 |
|
Wis Elec Debenture due June, 15 2018 [Domain]
|
|
| Long Term Debt (Textuals) | |
| Issuance of long-term debt | 250 |
| Interest rate on long-term debt | 1.70% |
|
Wis Elec Debentures due May 15 2013 [Domain]
|
|
| Long Term Debt (Textuals) | |
| Retirement of long-term debt | $ 300 |