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Condensed Parent Company Financial Statements (Tables) | 12 Months Ended
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Dec. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract] |
Condensed Statements of Income | ALLIANT ENERGY CORPORATION (Parent Company Only) CONDENSED STATEMENTS OF INCOME
| Year Ended December 31,
| 2014 |  | 2013 |  | 2012
| (in millions)
Operating revenues |  | $2 |  |  |  | $2 |  |  |  | $2 |
Operating expenses | 3 |  |  | 1 |  |  | 1 |
Operating income (loss) | (1 | ) |  | 1 |  |  | 1 |
Interest expense and other: |  |  |  |  |
Equity earnings from consolidated subsidiaries | (387 | ) |  | (362 | ) |  | (322 | )
Interest expense | 9 |  |  | 11 |  |  | 11 |
Interest income | (2 | ) |  | (2 | ) |  | (4 | )
Total interest expense and other | (380 | ) |  | (353 | ) |  | (315 | )
Income before income taxes | 379 |  |  | 354 |  |  | 316 |
Income tax benefit | (4 | ) |  | (4 | ) |  | (4 | )
Net income |  | $383 |  |  |  | $358 |  |  |  | $320 |
The accompanying Notes to Condensed Financial Statements are an integral part of these statements.
Condensed Balance Sheets | ALLIANT ENERGY CORPORATION (Parent Company Only) CONDENSED BALANCE SHEETS
| December 31,
| 2014 |  | 2013
| (in millions)
ASSETS |  |  |
Current assets: |  |  |
Notes receivable from affiliated companies |  | $95 |  |  |  | $72 |
Other | 4 |  |  | 3 |
| 99 |  |  | 75 |
Investments: |  |  |
Investments in consolidated subsidiaries | 3,753 |  |  | 3,585 |
Other | 15 |  |  | 14 |
| 3,768 |  |  | 3,599 |
Other assets | 10 |  |  | 6 |
Total assets |  | $3,877 |  |  |  | $3,680 |
The accompanying Notes to Condensed Financial Statements are an integral part of these statements. ALLIANT ENERGY CORPORATION (Parent Company Only) CONDENSED BALANCE SHEETS (continued)
| December 31,
| 2014 |  | 2013
| (in millions)
LIABILITIES AND EQUITY |  |  |
Current liabilities: |  |  |
Current maturities of long-term debt |  | $— |  |  |  | $250 |
Commercial paper | 141 |  |  | 96 |
Other | 29 |  |  | 10 |
| 170 |  |  | 356 |
Long-term debt, net | 250 |  |  | — |
Other liabilities: |  |  |
Deferred income taxes | 11 |  |  | 39 |
Other | 11 |  |  | 7 |
| 22 |  |  | 46 |
Common equity: |  |  |
Common stock and additional paid-in capital | 1,510 |  |  | 1,509 |
Retained earnings | 1,934 |  |  | 1,777 |
Shares in deferred compensation trust | (9 | ) |  | (8 | )
| 3,435 |  |  | 3,278 |
Total liabilities and equity |  | $3,877 |  |  |  | $3,680 |
The accompanying Notes to Condensed Financial Statements are an integral part of these statements.
Condensed Statements of Cash Flows | ALLIANT ENERGY CORPORATION (Parent Company Only) CONDENSED STATEMENTS OF CASH FLOWS
| Year Ended December 31,
| 2014 |  | 2013 |  | 2012
| (in millions)
Net cash flows from operating activities |  | $246 |  |  |  | $238 |  |  |  | $260 |
Cash flows used for investing activities: |  |  |  |  |  |  |  |
Capital contributions to consolidated subsidiaries | (90 | ) |  | (120 | ) |  | (230 | )
Capital repayments from consolidated subsidiaries | 50 |  |  | 95 |  |  | — |
Net change in notes receivable from affiliates | (23 | ) |  | 5 |  |  | 134 |
Other | — |  |  | (2 | ) |  | 1 |
Net cash flows used for investing activities | (63 | ) |  | (22 | ) |  | (95 | )
Cash flows used for financing activities: |  |  |  |  |  |  |  |
Common stock dividends | (226 | ) |  | (208 | ) |  | (199 | )
Proceeds from issuance of long-term debt | 250 |  |  | — |  |  | — |
Payments to retire long-term debt | (250 | ) |  | — |  |  | — |
Net change in commercial paper | 45 |  |  | (9 | ) |  | 35 |
Other | (2 | ) |  | 1 |  |  | (1 | )
Net cash flows used for financing activities | (183 | ) |  | (216 | ) |  | (165 | )
Net decrease in cash and cash equivalents | — |  |  | — |  |  | — |
Cash and cash equivalents at beginning of period | — |  |  | — |  |  | — |
Cash and cash equivalents at end of period |  | $— |  |  |  | $— |  |  |  | $— |
Supplemental cash flows information: |  |  |  |  |  |  |  |
Cash (paid) refunded during the period for: |  |  |  |  |  |  |  |
Interest, net of capitalized interest |  | ($11 | ) |  |  | ($13 | ) |  |  | ($11 | )
Income taxes, net | (5 | ) |  | (7 | ) |  | 29 |
The accompanying Notes to Condensed Financial Statements are an integral part of these statements.

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