|
Debt (Tables)
|
12 Months Ended |
|
Dec. 31, 2012
|
| Debt Disclosure [Line Items] |
|
| Other Short-Term Borrowings |
Information regarding commercial paper classified as short-term debt and backstopped by the credit facilities was as follows (dollars in millions): | | | | | | | | | | | | | | Alliant Energy | | IPL | | WPL | | 2012 | | 2011 | | 2012 | | 2011 | | 2012 | | 2011 | December 31 | | | | | | | | | | | | Commercial paper: | | | | | | | | | | | | Amount outstanding | $217.5 | | $102.8 | | $26.3 | | $7.1 | | $86.6 | | $25.7 | Weighted average interest rates | 0.4% | | 0.3% | | 0.4% | | 0.4% | | 0.3% | | 0.3% | Weighted average remaining maturity | 11 days | | 3 days | | 2 days | | 3 days | | 19 days | | 3 days | Available credit facility capacity (a) | $732.5 | | $897.2 | | $223.7 | | $292.9 | | $313.4 | | $374.3 |
| | | | | | | | | | | | | | Alliant Energy | | IPL | | WPL | | 2012 | | 2011 | | 2012 | | 2011 | | 2012 | | 2011 | For the year ended | | | | | | | | | | | | Maximum amount outstanding (based on daily outstanding balances) | $217.5 | | $124.4 | | $35.4 | | $54.4 | | $86.6 | | $96.5 | Average amount outstanding (based on daily outstanding balances) | $99.8 | | $27.7 | | $5.9 | | $6.0 | | $11.7 | | $17.6 | Weighted average interest rates | 0.4% | | 0.3% | | 0.4% | | 0.3% | | 0.3% | | 0.3% |
| | (a) | Alliant Energy’s and IPL’s available credit facility capacities reflect outstanding commercial paper classified as both short- and long-term debt at December 31, 2012. Refer to Note 9(b) for further discussion of $50.0 million of commercial paper outstanding at December 31, 2012 classified as long-term debt on Alliant Energy’s and IPL’s Consolidated Balance Sheets. |
|
| Schedule of Debt-To-Capital Ratios |
The required debt-to-capital ratios compared to the actual debt-to-capital ratios at December 31, 2012 were as follows: | | | | | | | | Alliant Energy | | IPL | | WPL | Requirement | Less than 65% | | Less than 58% | | Less than 58% | Actual | 50% | | 45% | | 48% |
|
| Schedule of Long-term Debt |
Long-term debt, net as of December 31 was as follows (dollars in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | 2012 | | 2011 | | Alliant Energy | | IPL | | WPL | | Alliant Energy | | IPL | | WPL | Senior Debentures: | | | | | | | | | | | | 3.3%, due 2015 |
| $150.0 |
| |
| $150.0 |
| |
| $— |
| |
| $150.0 |
| |
| $150.0 |
| |
| $— |
| 5.875%, due 2018 | 100.0 |
| | 100.0 |
| | — |
| | 100.0 |
| | 100.0 |
| | — |
| 7.25%, due 2018 | 250.0 |
| | 250.0 |
| | — |
| | 250.0 |
| | 250.0 |
| | — |
| 3.65%, due 2020 | 200.0 |
| | 200.0 |
| | — |
| | 200.0 |
| | 200.0 |
| | — |
| 5.5%, due 2025 | 50.0 |
| | 50.0 |
| | — |
| | 50.0 |
| | 50.0 |
| | — |
| 6.45%, due 2033 | 100.0 |
| | 100.0 |
| | — |
| | 100.0 |
| | 100.0 |
| | — |
| 6.3%, due 2034 | 125.0 |
| | 125.0 |
| | — |
| | 125.0 |
| | 125.0 |
| | — |
| 6.25%, due 2039 | 300.0 |
| | 300.0 |
| | — |
| | 300.0 |
| | 300.0 |
| | — |
| | 1,275.0 |
| | 1,275.0 |
| | — |
| | 1,275.0 |
| | 1,275.0 |
| | — |
| Debentures: | | | | | | | | | | | | 5%, due 2019 | 250.0 |
| | — |
| | 250.0 |
| | 250.0 |
| | — |
| | 250.0 |
| 4.6%, due 2020 | 150.0 |
| | — |
| | 150.0 |
| | 150.0 |
| | — |
| | 150.0 |
| 2.25%, due 2022 (a) | 250.0 |
| | — |
| | 250.0 |
| | — |
| | — |
| | — |
| 6.25%, due 2034 | 100.0 |
| | — |
| | 100.0 |
| | 100.0 |
| | — |
| | 100.0 |
| 6.375%, due 2037 | 300.0 |
| | — |
| | 300.0 |
| | 300.0 |
| | — |
| | 300.0 |
| 7.6%, due 2038 | 250.0 |
| | — |
| | 250.0 |
| | 250.0 |
| | — |
| | 250.0 |
| | 1,300.0 |
| | — |
| | 1,300.0 |
| | 1,050.0 |
| | — |
| | 1,050.0 |
| Pollution Control Revenue Bonds: | | | | | | | | | | | | 5%, due 2014 | 38.4 |
| | 38.4 |
| | — |
| | 38.4 |
| | 38.4 |
| | — |
| 5%, due 2014 and 2015 | 24.5 |
| | — |
| | 24.5 |
| | 24.5 |
| | — |
| | 24.5 |
| 5.375%, due 2015 | 14.6 |
| | — |
| | 14.6 |
| | 14.6 |
| | — |
| | 14.6 |
| | 77.5 |
| | 38.4 |
| | 39.1 |
| | 77.5 |
| | 38.4 |
| | 39.1 |
| Other: | | | | | | | | | | | | Commercial paper, 0.4% at December 31, 2012 (b) | 50.0 |
| | 50.0 |
| | — |
| | — |
| | — |
| | — |
| 4% senior notes, due 2014 | 250.0 |
| | — |
| | — |
| | 250.0 |
| | — |
| | — |
| Term loan credit agreement through 2014, 1.1% at December 31, 2012 (c) | 60.0 |
| | — |
| | — |
| | — |
| | — |
| | — |
| 3.45% senior notes, due 2022 (d) | 75.0 |
| | — |
| | — |
| | — |
| | — |
| | — |
| 5.06% senior secured notes, due 2013 to 2024 | 61.9 |
| | — |
| | — |
| | 63.3 |
| | — |
| | — |
| Other, 1% at December 31, 2012, due 2013 to 2025 | 0.5 |
| | — |
| | — |
| | 0.5 |
| | — |
| | — |
| | 497.4 |
| | 50.0 |
| | — |
| | 313.8 |
| | — |
| | — |
| Subtotal | 3,149.9 |
| | 1,363.4 |
| | 1,339.1 |
| | 2,716.3 |
| | 1,313.4 |
| | 1,089.1 |
| Current maturities | (1.5 | ) | | — |
| | — |
| | (1.4 | ) | | — |
| | — |
| Unamortized debt (discount) and premium, net | (11.8 | ) | | (3.9 | ) | | (7.6 | ) | | (11.8 | ) | | (4.4 | ) | | (6.9 | ) | Long-term debt, net |
| $3,136.6 |
| |
| $1,359.5 |
| |
| $1,331.5 |
| |
| $2,703.1 |
| |
| $1,309.0 |
| |
| $1,082.2 |
|
| | (a) | In 2012, WPL issued $250.0 million of 2.25% debentures due 2022. The proceeds from the issuance were used by WPL to fund a portion of the purchase price of Riverside. |
| | (b) | As of December 31, 2012, $50.0 million of commercial paper was recorded in “Long-term debt, net” on Alliant Energy’s and IPL’s Consolidated Balance Sheets due to the existence of long-term credit facilities that back-stop this commercial paper balance, along with Alliant Energy’s and IPL’s intent and ability to refinance these balances on a long-term basis. As of December 31, 2012, this commercial paper balance had a remaining maturity of 8 days. |
| | (c) | In 2012, Franklin County Holdings LLC, Resources’ wholly-owned subsidiary, entered into a $60.0 million variable-rate term loan credit agreement that exists through 2014 to fund a portion of the costs of its Franklin County wind project, which was placed into service in the fourth quarter of 2012. |
| | (d) | In 2012, Corporate Services issued $75 million of 3.45% senior notes due 2022. The proceeds from the issuance were used by Corporate Services to repay short-term debt primarily incurred for the purchase of the corporate headquarters building and for general working capital purposes. |
|
| Schedule of Debt Maturities |
At December 31, 2012, debt maturities for 2013 to 2017 were as follows (in millions): | | | | | | | | | | | | | | | | | | | | | | 2013 | | 2014 | | 2015 | | 2016 | | 2017 | IPL (a) |
| $50 |
| |
| $38 |
| |
| $150 |
| |
| $— |
| |
| $— |
| WPL | — |
| | 8 |
| | 31 |
| | — |
| | — |
| Resources | 1 |
| | 62 |
| | 2 |
| | 3 |
| | 4 |
| Alliant Energy parent company | — |
| | 250 |
| | — |
| | — |
| | — |
| Alliant Energy |
| $51 |
| |
| $358 |
| |
| $183 |
| |
| $3 |
| |
| $4 |
|
| | (a) | IPL’s amount for 2013 includes $50.0 million of commercial paper that was recorded in “Long-term debt, net” on Alliant Energy’s and IPL’s Consolidated Balance Sheets as described above. |
|
| Unamortized Debt Issuance Costs |
Unamortized debt issuance costs recorded in “Deferred charges and other” on the Consolidated Balance Sheets at December 31 were as follows (in millions): | | | | | | | | | | | | | | Alliant Energy | | IPL | | WPL | | 2012 | | 2011 | | 2012 | | 2011 | | 2012 | | 2011 | Unamortized debt issuance costs | $19.5 | | $19.1 | | $8.0 | | $9.0 | | $9.8 | | $8.4 |
|
|
IPL [Member]
|
|
| Debt Disclosure [Line Items] |
|
| Other Short-Term Borrowings |
Information regarding commercial paper classified as short-term debt and backstopped by the credit facilities was as follows (dollars in millions): | | | | | | | | | | | | | | Alliant Energy | | IPL | | WPL | | 2012 | | 2011 | | 2012 | | 2011 | | 2012 | | 2011 | December 31 | | | | | | | | | | | | Commercial paper: | | | | | | | | | | | | Amount outstanding | $217.5 | | $102.8 | | $26.3 | | $7.1 | | $86.6 | | $25.7 | Weighted average interest rates | 0.4% | | 0.3% | | 0.4% | | 0.4% | | 0.3% | | 0.3% | Weighted average remaining maturity | 11 days | | 3 days | | 2 days | | 3 days | | 19 days | | 3 days | Available credit facility capacity (a) | $732.5 | | $897.2 | | $223.7 | | $292.9 | | $313.4 | | $374.3 |
| | | | | | | | | | | | | | Alliant Energy | | IPL | | WPL | | 2012 | | 2011 | | 2012 | | 2011 | | 2012 | | 2011 | For the year ended | | | | | | | | | | | | Maximum amount outstanding (based on daily outstanding balances) | $217.5 | | $124.4 | | $35.4 | | $54.4 | | $86.6 | | $96.5 | Average amount outstanding (based on daily outstanding balances) | $99.8 | | $27.7 | | $5.9 | | $6.0 | | $11.7 | | $17.6 | Weighted average interest rates | 0.4% | | 0.3% | | 0.4% | | 0.3% | | 0.3% | | 0.3% |
| | (a) | Alliant Energy’s and IPL’s available credit facility capacities reflect outstanding commercial paper classified as both short- and long-term debt at December 31, 2012. Refer to Note 9(b) for further discussion of $50.0 million of commercial paper outstanding at December 31, 2012 classified as long-term debt on Alliant Energy’s and IPL’s Consolidated Balance Sheets. |
|
| Schedule of Debt-To-Capital Ratios |
The required debt-to-capital ratios compared to the actual debt-to-capital ratios at December 31, 2012 were as follows: | | | | | | | | Alliant Energy | | IPL | | WPL | Requirement | Less than 65% | | Less than 58% | | Less than 58% | Actual | 50% | | 45% | | 48% |
|
| Schedule of Long-term Debt |
Long-term debt, net as of December 31 was as follows (dollars in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | 2012 | | 2011 | | Alliant Energy | | IPL | | WPL | | Alliant Energy | | IPL | | WPL | Senior Debentures: | | | | | | | | | | | | 3.3%, due 2015 |
| $150.0 |
| |
| $150.0 |
| |
| $— |
| |
| $150.0 |
| |
| $150.0 |
| |
| $— |
| 5.875%, due 2018 | 100.0 |
| | 100.0 |
| | — |
| | 100.0 |
| | 100.0 |
| | — |
| 7.25%, due 2018 | 250.0 |
| | 250.0 |
| | — |
| | 250.0 |
| | 250.0 |
| | — |
| 3.65%, due 2020 | 200.0 |
| | 200.0 |
| | — |
| | 200.0 |
| | 200.0 |
| | — |
| 5.5%, due 2025 | 50.0 |
| | 50.0 |
| | — |
| | 50.0 |
| | 50.0 |
| | — |
| 6.45%, due 2033 | 100.0 |
| | 100.0 |
| | — |
| | 100.0 |
| | 100.0 |
| | — |
| 6.3%, due 2034 | 125.0 |
| | 125.0 |
| | — |
| | 125.0 |
| | 125.0 |
| | — |
| 6.25%, due 2039 | 300.0 |
| | 300.0 |
| | — |
| | 300.0 |
| | 300.0 |
| | — |
| | 1,275.0 |
| | 1,275.0 |
| | — |
| | 1,275.0 |
| | 1,275.0 |
| | — |
| Debentures: | | | | | | | | | | | | 5%, due 2019 | 250.0 |
| | — |
| | 250.0 |
| | 250.0 |
| | — |
| | 250.0 |
| 4.6%, due 2020 | 150.0 |
| | — |
| | 150.0 |
| | 150.0 |
| | — |
| | 150.0 |
| 2.25%, due 2022 (a) | 250.0 |
| | — |
| | 250.0 |
| | — |
| | — |
| | — |
| 6.25%, due 2034 | 100.0 |
| | — |
| | 100.0 |
| | 100.0 |
| | — |
| | 100.0 |
| 6.375%, due 2037 | 300.0 |
| | — |
| | 300.0 |
| | 300.0 |
| | — |
| | 300.0 |
| 7.6%, due 2038 | 250.0 |
| | — |
| | 250.0 |
| | 250.0 |
| | — |
| | 250.0 |
| | 1,300.0 |
| | — |
| | 1,300.0 |
| | 1,050.0 |
| | — |
| | 1,050.0 |
| Pollution Control Revenue Bonds: | | | | | | | | | | | | 5%, due 2014 | 38.4 |
| | 38.4 |
| | — |
| | 38.4 |
| | 38.4 |
| | — |
| 5%, due 2014 and 2015 | 24.5 |
| | — |
| | 24.5 |
| | 24.5 |
| | — |
| | 24.5 |
| 5.375%, due 2015 | 14.6 |
| | — |
| | 14.6 |
| | 14.6 |
| | — |
| | 14.6 |
| | 77.5 |
| | 38.4 |
| | 39.1 |
| | 77.5 |
| | 38.4 |
| | 39.1 |
| Other: | | | | | | | | | | | | Commercial paper, 0.4% at December 31, 2012 (b) | 50.0 |
| | 50.0 |
| | — |
| | — |
| | — |
| | — |
| 4% senior notes, due 2014 | 250.0 |
| | — |
| | — |
| | 250.0 |
| | — |
| | — |
| Term loan credit agreement through 2014, 1.1% at December 31, 2012 (c) | 60.0 |
| | — |
| | — |
| | — |
| | — |
| | — |
| 3.45% senior notes, due 2022 (d) | 75.0 |
| | — |
| | — |
| | — |
| | — |
| | — |
| 5.06% senior secured notes, due 2013 to 2024 | 61.9 |
| | — |
| | — |
| | 63.3 |
| | — |
| | — |
| Other, 1% at December 31, 2012, due 2013 to 2025 | 0.5 |
| | — |
| | — |
| | 0.5 |
| | — |
| | — |
| | 497.4 |
| | 50.0 |
| | — |
| | 313.8 |
| | — |
| | — |
| Subtotal | 3,149.9 |
| | 1,363.4 |
| | 1,339.1 |
| | 2,716.3 |
| | 1,313.4 |
| | 1,089.1 |
| Current maturities | (1.5 | ) | | — |
| | — |
| | (1.4 | ) | | — |
| | — |
| Unamortized debt (discount) and premium, net | (11.8 | ) | | (3.9 | ) | | (7.6 | ) | | (11.8 | ) | | (4.4 | ) | | (6.9 | ) | Long-term debt, net |
| $3,136.6 |
| |
| $1,359.5 |
| |
| $1,331.5 |
| |
| $2,703.1 |
| |
| $1,309.0 |
| |
| $1,082.2 |
|
| | (a) | In 2012, WPL issued $250.0 million of 2.25% debentures due 2022. The proceeds from the issuance were used by WPL to fund a portion of the purchase price of Riverside. |
| | (b) | As of December 31, 2012, $50.0 million of commercial paper was recorded in “Long-term debt, net” on Alliant Energy’s and IPL’s Consolidated Balance Sheets due to the existence of long-term credit facilities that back-stop this commercial paper balance, along with Alliant Energy’s and IPL’s intent and ability to refinance these balances on a long-term basis. As of December 31, 2012, this commercial paper balance had a remaining maturity of 8 days. |
| | (c) | In 2012, Franklin County Holdings LLC, Resources’ wholly-owned subsidiary, entered into a $60.0 million variable-rate term loan credit agreement that exists through 2014 to fund a portion of the costs of its Franklin County wind project, which was placed into service in the fourth quarter of 2012. |
| | (d) | In 2012, Corporate Services issued $75 million of 3.45% senior notes due 2022. The proceeds from the issuance were used by Corporate Services to repay short-term debt primarily incurred for the purchase of the corporate headquarters building and for general working capital purposes. |
|
| Schedule of Debt Maturities |
At December 31, 2012, debt maturities for 2013 to 2017 were as follows (in millions): | | | | | | | | | | | | | | | | | | | | | | 2013 | | 2014 | | 2015 | | 2016 | | 2017 | IPL (a) |
| $50 |
| |
| $38 |
| |
| $150 |
| |
| $— |
| |
| $— |
| WPL | — |
| | 8 |
| | 31 |
| | — |
| | — |
| Resources | 1 |
| | 62 |
| | 2 |
| | 3 |
| | 4 |
| Alliant Energy parent company | — |
| | 250 |
| | — |
| | — |
| | — |
| Alliant Energy |
| $51 |
| |
| $358 |
| |
| $183 |
| |
| $3 |
| |
| $4 |
|
| | (a) | IPL’s amount for 2013 includes $50.0 million of commercial paper that was recorded in “Long-term debt, net” on Alliant Energy’s and IPL’s Consolidated Balance Sheets as described above. |
|
| Unamortized Debt Issuance Costs |
Unamortized debt issuance costs recorded in “Deferred charges and other” on the Consolidated Balance Sheets at December 31 were as follows (in millions): | | | | | | | | | | | | | | Alliant Energy | | IPL | | WPL | | 2012 | | 2011 | | 2012 | | 2011 | | 2012 | | 2011 | Unamortized debt issuance costs | $19.5 | | $19.1 | | $8.0 | | $9.0 | | $9.8 | | $8.4 |
|
|
Wpl [Member]
|
|
| Debt Disclosure [Line Items] |
|
| Other Short-Term Borrowings |
Information regarding commercial paper classified as short-term debt and backstopped by the credit facilities was as follows (dollars in millions): | | | | | | | | | | | | | | Alliant Energy | | IPL | | WPL | | 2012 | | 2011 | | 2012 | | 2011 | | 2012 | | 2011 | December 31 | | | | | | | | | | | | Commercial paper: | | | | | | | | | | | | Amount outstanding | $217.5 | | $102.8 | | $26.3 | | $7.1 | | $86.6 | | $25.7 | Weighted average interest rates | 0.4% | | 0.3% | | 0.4% | | 0.4% | | 0.3% | | 0.3% | Weighted average remaining maturity | 11 days | | 3 days | | 2 days | | 3 days | | 19 days | | 3 days | Available credit facility capacity (a) | $732.5 | | $897.2 | | $223.7 | | $292.9 | | $313.4 | | $374.3 |
| | | | | | | | | | | | | | Alliant Energy | | IPL | | WPL | | 2012 | | 2011 | | 2012 | | 2011 | | 2012 | | 2011 | For the year ended | | | | | | | | | | | | Maximum amount outstanding (based on daily outstanding balances) | $217.5 | | $124.4 | | $35.4 | | $54.4 | | $86.6 | | $96.5 | Average amount outstanding (based on daily outstanding balances) | $99.8 | | $27.7 | | $5.9 | | $6.0 | | $11.7 | | $17.6 | Weighted average interest rates | 0.4% | | 0.3% | | 0.4% | | 0.3% | | 0.3% | | 0.3% |
| | (a) | Alliant Energy’s and IPL’s available credit facility capacities reflect outstanding commercial paper classified as both short- and long-term debt at December 31, 2012. Refer to Note 9(b) for further discussion of $50.0 million of commercial paper outstanding at December 31, 2012 classified as long-term debt on Alliant Energy’s and IPL’s Consolidated Balance Sheets. |
|
| Schedule of Debt-To-Capital Ratios |
The required debt-to-capital ratios compared to the actual debt-to-capital ratios at December 31, 2012 were as follows: | | | | | | | | Alliant Energy | | IPL | | WPL | Requirement | Less than 65% | | Less than 58% | | Less than 58% | Actual | 50% | | 45% | | 48% |
|
| Schedule of Long-term Debt |
Long-term debt, net as of December 31 was as follows (dollars in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | 2012 | | 2011 | | Alliant Energy | | IPL | | WPL | | Alliant Energy | | IPL | | WPL | Senior Debentures: | | | | | | | | | | | | 3.3%, due 2015 |
| $150.0 |
| |
| $150.0 |
| |
| $— |
| |
| $150.0 |
| |
| $150.0 |
| |
| $— |
| 5.875%, due 2018 | 100.0 |
| | 100.0 |
| | — |
| | 100.0 |
| | 100.0 |
| | — |
| 7.25%, due 2018 | 250.0 |
| | 250.0 |
| | — |
| | 250.0 |
| | 250.0 |
| | — |
| 3.65%, due 2020 | 200.0 |
| | 200.0 |
| | — |
| | 200.0 |
| | 200.0 |
| | — |
| 5.5%, due 2025 | 50.0 |
| | 50.0 |
| | — |
| | 50.0 |
| | 50.0 |
| | — |
| 6.45%, due 2033 | 100.0 |
| | 100.0 |
| | — |
| | 100.0 |
| | 100.0 |
| | — |
| 6.3%, due 2034 | 125.0 |
| | 125.0 |
| | — |
| | 125.0 |
| | 125.0 |
| | — |
| 6.25%, due 2039 | 300.0 |
| | 300.0 |
| | — |
| | 300.0 |
| | 300.0 |
| | — |
| | 1,275.0 |
| | 1,275.0 |
| | — |
| | 1,275.0 |
| | 1,275.0 |
| | — |
| Debentures: | | | | | | | | | | | | 5%, due 2019 | 250.0 |
| | — |
| | 250.0 |
| | 250.0 |
| | — |
| | 250.0 |
| 4.6%, due 2020 | 150.0 |
| | — |
| | 150.0 |
| | 150.0 |
| | — |
| | 150.0 |
| 2.25%, due 2022 (a) | 250.0 |
| | — |
| | 250.0 |
| | — |
| | — |
| | — |
| 6.25%, due 2034 | 100.0 |
| | — |
| | 100.0 |
| | 100.0 |
| | — |
| | 100.0 |
| 6.375%, due 2037 | 300.0 |
| | — |
| | 300.0 |
| | 300.0 |
| | — |
| | 300.0 |
| 7.6%, due 2038 | 250.0 |
| | — |
| | 250.0 |
| | 250.0 |
| | — |
| | 250.0 |
| | 1,300.0 |
| | — |
| | 1,300.0 |
| | 1,050.0 |
| | — |
| | 1,050.0 |
| Pollution Control Revenue Bonds: | | | | | | | | | | | | 5%, due 2014 | 38.4 |
| | 38.4 |
| | — |
| | 38.4 |
| | 38.4 |
| | — |
| 5%, due 2014 and 2015 | 24.5 |
| | — |
| | 24.5 |
| | 24.5 |
| | — |
| | 24.5 |
| 5.375%, due 2015 | 14.6 |
| | — |
| | 14.6 |
| | 14.6 |
| | — |
| | 14.6 |
| | 77.5 |
| | 38.4 |
| | 39.1 |
| | 77.5 |
| | 38.4 |
| | 39.1 |
| Other: | | | | | | | | | | | | Commercial paper, 0.4% at December 31, 2012 (b) | 50.0 |
| | 50.0 |
| | — |
| | — |
| | — |
| | — |
| 4% senior notes, due 2014 | 250.0 |
| | — |
| | — |
| | 250.0 |
| | — |
| | — |
| Term loan credit agreement through 2014, 1.1% at December 31, 2012 (c) | 60.0 |
| | — |
| | — |
| | — |
| | — |
| | — |
| 3.45% senior notes, due 2022 (d) | 75.0 |
| | — |
| | — |
| | — |
| | — |
| | — |
| 5.06% senior secured notes, due 2013 to 2024 | 61.9 |
| | — |
| | — |
| | 63.3 |
| | — |
| | — |
| Other, 1% at December 31, 2012, due 2013 to 2025 | 0.5 |
| | — |
| | — |
| | 0.5 |
| | — |
| | — |
| | 497.4 |
| | 50.0 |
| | — |
| | 313.8 |
| | — |
| | — |
| Subtotal | 3,149.9 |
| | 1,363.4 |
| | 1,339.1 |
| | 2,716.3 |
| | 1,313.4 |
| | 1,089.1 |
| Current maturities | (1.5 | ) | | — |
| | — |
| | (1.4 | ) | | — |
| | — |
| Unamortized debt (discount) and premium, net | (11.8 | ) | | (3.9 | ) | | (7.6 | ) | | (11.8 | ) | | (4.4 | ) | | (6.9 | ) | Long-term debt, net |
| $3,136.6 |
| |
| $1,359.5 |
| |
| $1,331.5 |
| |
| $2,703.1 |
| |
| $1,309.0 |
| |
| $1,082.2 |
|
| | (a) | In 2012, WPL issued $250.0 million of 2.25% debentures due 2022. The proceeds from the issuance were used by WPL to fund a portion of the purchase price of Riverside. |
| | (b) | As of December 31, 2012, $50.0 million of commercial paper was recorded in “Long-term debt, net” on Alliant Energy’s and IPL’s Consolidated Balance Sheets due to the existence of long-term credit facilities that back-stop this commercial paper balance, along with Alliant Energy’s and IPL’s intent and ability to refinance these balances on a long-term basis. As of December 31, 2012, this commercial paper balance had a remaining maturity of 8 days. |
| | (c) | In 2012, Franklin County Holdings LLC, Resources’ wholly-owned subsidiary, entered into a $60.0 million variable-rate term loan credit agreement that exists through 2014 to fund a portion of the costs of its Franklin County wind project, which was placed into service in the fourth quarter of 2012. |
| | (d) | In 2012, Corporate Services issued $75 million of 3.45% senior notes due 2022. The proceeds from the issuance were used by Corporate Services to repay short-term debt primarily incurred for the purchase of the corporate headquarters building and for general working capital purposes. |
|
| Schedule of Debt Maturities |
At December 31, 2012, debt maturities for 2013 to 2017 were as follows (in millions): | | | | | | | | | | | | | | | | | | | | | | 2013 | | 2014 | | 2015 | | 2016 | | 2017 | IPL (a) |
| $50 |
| |
| $38 |
| |
| $150 |
| |
| $— |
| |
| $— |
| WPL | — |
| | 8 |
| | 31 |
| | — |
| | — |
| Resources | 1 |
| | 62 |
| | 2 |
| | 3 |
| | 4 |
| Alliant Energy parent company | — |
| | 250 |
| | — |
| | — |
| | — |
| Alliant Energy |
| $51 |
| |
| $358 |
| |
| $183 |
| |
| $3 |
| |
| $4 |
|
| | (a) | IPL’s amount for 2013 includes $50.0 million of commercial paper that was recorded in “Long-term debt, net” on Alliant Energy’s and IPL’s Consolidated Balance Sheets as described above. |
|
| Unamortized Debt Issuance Costs |
Unamortized debt issuance costs recorded in “Deferred charges and other” on the Consolidated Balance Sheets at December 31 were as follows (in millions): | | | | | | | | | | | | | | Alliant Energy | | IPL | | WPL | | 2012 | | 2011 | | 2012 | | 2011 | | 2012 | | 2011 | Unamortized debt issuance costs | $19.5 | | $19.1 | | $8.0 | | $9.0 | | $9.8 | | $8.4 |
|