v2.4.0.6

Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Cash flows from operating activities: |  |  |
Net income | $ 335.7 | $ 321.9 | $ 306.3
Adjustments to reconcile net income to net cash flows from operating activities: |  |  |
Depreciation and amortization | 332.9 | 323.8 | 292.3
Other amortizations | 55.0 | 56.3 | 51.8
Deferred tax expense (benefit) and investment tax credits | 143.3 | 10.2 | 216.6
Equity income from unconsolidated investments, net | (41.3) | (39.3) | (38.1)
Distributions from equity method investments | 34.2 | 32.3 | 32.2
Equity component of allowance for funds used during construction | (14.1) | (7.6) | (11.2)
Non-cash valuation and regulatory-related charges | 3.3 | 25.5 | 38.0
Other | (2.6) | (5.2) | (4.7)
Other changes in assets and liabilities: |  |  |
Accounts receivable | 61.3 | (54.3) | 16.3
Sales of accounts receivable | (10.0) | 75.0 | 65.0
Income tax refunds receivable | 20.9 | 0.3 | 130.4
Regulatory assets | (178.1) | (413.1) | (20.8)
Regulatory liabilities | 16.4 | 168.3 | 8.4
Derivative liabilities | (37.6) | 10.7 | (52.0)
Non-current taxes payable | (2.9) | (5.1) | (66.6)
Pension and other benefit obligations | 51.3 | 8.9 | (20.1)
Other | (14.2) | 45.6 | 12.2
Net cash flows from operating activities | 841.1 | 702.7 | 984.9
Cash flows from (used for) investing activities: |  |  |
Utility business - Riverside Energy Center | (403.5) | 0 | 0
Utility business - other | (622.0) | (608.1) | (833.3)
Alliant Energy Corporate Services, Inc. and non-regulated businesses | (132.6) | (65.3) | (33.6)
Advances for customer energy efficiency projects | (0.4) | (5.1) | (17.1)
Collections of advances for customer energy efficiency projects | 22.9 | 31.0 | 34.2
Other | (19.9) | (4.6) | (16.7)
Net cash flows from (used for) investing activities | (1,155.5) | (652.1) | (866.5)
Cash flows from (used for) financing activities: |  |  |
Common stock dividends | (199.3) | (188.1) | (174.6)
Preferred dividends paid by subsidiaries | (15.9) | (16.8) | (18.7)
Payments to redeem cumulative preferred stock | 0 | (40.0) | 0
Proceeds from issuance of long-term debt | 385.0 | 0.4 | 500.0
Payments to retire long-term debt | (1.4) | (1.3) | (307.8)
Net change in commercial paper | 164.7 | 55.4 | (142.6)
Other | (8.9) | (8.1) | 9.3
Net cash flows from (used for) financing activities | 324.2 | (198.5) | (134.4)
Net increase (decrease) in cash and cash equivalents | 9.8 | (147.9) | (16.0)
Cash and cash equivalents at beginning of period | 11.4 | 159.3 | 175.3
Cash and cash equivalents at end of period | 21.2 | 11.4 | 159.3
Supplemental cash flows information: |  |  |
Interest, net of capitalized interest | 155.2 | 157.6 | 165.5
Income taxes, net of refunds | (20.3) | (10.8) | (116.2)
Significant non-cash investing and financing activities: |  |  |
Accrued capital expenditures | 105.3 | 49.7 | 75.0
Deferred income tax liabilities [Member] |  |  |
Other changes in assets and liabilities: |  |  |
Deferred income taxes | 87.6 | 148.5 | 28.9
IPL [Member] |  |  |
Cash flows from operating activities: |  |  |
Net income | 150.2 | 139.3 | 143.4
Adjustments to reconcile net income to net cash flows from operating activities: |  |  |
Depreciation and amortization | 188.9 | 179.1 | 177.0
Deferred tax expense (benefit) and investment tax credits | 19.3 | (58.6) | 116.0
Equity component of allowance for funds used during construction | (5.2) | (3.5) | (3.0)
Non-cash valuation and regulatory-related charges | 3.0 | 14.8 | 30.5
Other | 7.6 | 8.7 | 3.7
Other changes in assets and liabilities: |  |  |
Accounts receivable | (0.7) | 22.4 | 5.1
Sales of accounts receivable | (10.0) | 75.0 | 65.0
Income tax refunds receivable | 13.5 | (9.3) | 84.3
Production fuel | (7.5) | 12.4 | 21.0
Regulatory assets | (129.0) | (328.8) | (49.5)
Regulatory liabilities | (12.1) | 156.3 | 17.5
Derivative liabilities | (17.5) | 9.6 | (29.0)
Non-current taxes payable | (2.8) | (4.8) | (28.4)
Pension and other benefit obligations | 21.0 | (8.3) | (9.0)
Other | (6.3) | 16.7 | (37.0)
Net cash flows from operating activities | 291.0 | 366.9 | 549.6
Cash flows from (used for) investing activities: |  |  |
Utility business - other | (307.5) | (293.7) | (382.8)
Proceeds from sale of wind project assets to affiliate | 0 | 115.3 | 0
Other | (23.7) | (22.2) | (32.2)
Net cash flows from (used for) investing activities | (331.2) | (200.6) | (415.0)
Cash flows from (used for) financing activities: |  |  |
Common stock dividends | (122.9) | (73.4) | 0
Preferred dividends paid by subsidiaries | (12.6) | (13.5) | (15.4)
Capital contributions from parent | 110.0 | 54.0 | 50.0
Repayment of capital to parent | 0 | (100.7) | (118.2)
Payments to redeem cumulative preferred stock | 0 | (40.0) | 0
Proceeds from issuance of long-term debt | 0 | 0 | 350.0
Payments to retire long-term debt | 0 | 0 | (206.3)
Net change in commercial paper | 69.2 | 7.1 | (190.0)
Other | (1.1) | (3.4) | 0.6
Net cash flows from (used for) financing activities | 42.6 | (169.9) | (129.3)
Net increase (decrease) in cash and cash equivalents | 2.4 | (3.6) | 5.3
Cash and cash equivalents at beginning of period | 2.1 | 5.7 | 0.4
Cash and cash equivalents at end of period | 4.5 | 2.1 | 5.7
Supplemental cash flows information: |  |  |
Interest, net of capitalized interest | 78.3 | 78.0 | 82.0
Income taxes, net of refunds | 3.3 | 25.3 | (125.9)
Significant non-cash investing and financing activities: |  |  |
Accrued capital expenditures | 53.4 | 23.9 | 45.7
IPL [Member] | Deferred income tax liabilities [Member] |  |  |
Other changes in assets and liabilities: |  |  |
Deferred income taxes | 78.6 | 145.9 | 42.0
WPL [Member] |  |  |
Cash flows from operating activities: |  |  |
Net income | 165.7 | 163.5 | 152.3
Adjustments to reconcile net income to net cash flows from operating activities: |  |  |
Depreciation and amortization | 140.9 | 140.1 | 108.6
Other amortizations | 43.7 | 42.4 | 39.5
Deferred tax expense (benefit) and investment tax credits | 88.6 | 93.7 | 98.5
Equity income from unconsolidated investments, net | (42.1) | (38.7) | (37.8)
Distributions from equity method investments | 34.2 | 32.3 | 32.2
Equity component of allowance for funds used during construction | (8.9) | (4.1) | (8.2)
Non-cash valuation and regulatory-related charges | (2.9) | 10.8 | 0
Other changes in assets and liabilities: |  |  |
Accounts receivable | (11.0) | 9.8 | 4.6
Income tax refunds receivable | (2.9) | 39.9 | 40.7
Regulatory assets | (49.1) | (84.3) | 28.7
Regulatory liabilities | 28.5 | 12.0 | (9.1)
Derivative liabilities | (20.1) | 1.1 | (23.0)
Non-current taxes payable | (0.1) | (0.3) | (38.5)
Pension and other benefit obligations | 31.7 | 8.8 | (2.5)
Other | 31.2 | 1.8 | (13.6)
Net cash flows from operating activities | 427.4 | 428.8 | 372.4
Cash flows from (used for) investing activities: |  |  |
Utility business - Riverside Energy Center | (403.5) | 0 | 0
Utility business - other | (314.5) | (314.4) | (450.5)
Advances for customer energy efficiency projects | (0.4) | (5.1) | (16.0)
Collections of advances for customer energy efficiency projects | 20.9 | 26.8 | 30.3
Other | (12.7) | (12.7) | (13.1)
Net cash flows from (used for) investing activities | (710.2) | (305.4) | (449.3)
Cash flows from (used for) financing activities: |  |  |
Common stock dividends | (112.0) | (112.1) | (109.5)
Preferred dividends paid by subsidiaries | (3.3) | (3.3) | (3.3)
Capital contributions from parent | 90.0 | 25.0 | 75.0
Repayment of capital to parent | 0 | 0 | 0
Proceeds from issuance of long-term debt | 250.0 | 0 | 150.0
Payments to retire long-term debt | 0 | 0 | (100.0)
Net change in commercial paper | 60.9 | (21.7) | 47.4
Other | (4.8) | (8.7) | (1.1)
Net cash flows from (used for) financing activities | 280.8 | (120.8) | 58.5
Net increase (decrease) in cash and cash equivalents | (2.0) | 2.6 | (18.4)
Cash and cash equivalents at beginning of period | 2.7 | 0.1 | 18.5
Cash and cash equivalents at end of period | 0.7 | 2.7 | 0.1
Supplemental cash flows information: |  |  |
Interest, net of capitalized interest | 79.5 | 79.9 | 80.9
Income taxes, net of refunds | (3.3) | (51.3) | (3.8)
Significant non-cash investing and financing activities: |  |  |
Accrued capital expenditures | $ 39.5 | $ 19.7 | $ 27.4

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- Definition The increase (decrease) during the reporting period in the capitalized cost of equity (based on assumed rate of return) and / or borrowed funds (based on interest rate) used to finance construction of regulated assets, which is expected to be recovered through rate adjustments. As a result of this capitalization, net income is increased. This element pertains to certain regulated industries, such as public utilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in the account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in the value of fossil fuel held in inventory. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in income taxes receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of income taxes paid. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in other assets used in operating activities less other operating liabilities used in operating activities not separately disclosed in the statement of cash flows. May include changes in other current assets and liabilities, other noncurrent assets and liabilities, or a combination of other current and noncurrent assets and liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in other amounts due to the reporting entity, which are not otherwise defined in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in the value of other assets that are created when regulatory agencies permits public utilities to defer costs to the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in the amount due to fund pension and non-pension benefits to employees, retired and disabled former employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in regulated liabilities. Regulated liabilities are created when regulatory agency permits an entity to defer revenues to the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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- Definition The net cash inflow or outflow from investing activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3574-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.22) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.18) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.19) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e565-108580 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 15: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 16: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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