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Condensed Parent Company Financial Statements (Tables)
12 Months Ended
Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]  
Condensed Statements of Income
ALLIANT ENERGY CORPORATION (Parent Company Only)Year Ended December 31,
CONDENSED STATEMENTS OF INCOME202120202019
(in millions)
Operating expenses$5 $7 $2 
Operating loss(5)(7)(2)
Other (income) and deductions:
Equity earnings from consolidated subsidiaries(664)(625)(562)
Interest expense1 
Other1 
Total other (income) and deductions(662)(619)(546)
Income before income taxes657 612 544 
Income tax benefit(5)(4)(15)
Net income$662 $616 $559 
Refer to accompanying Notes to Condensed Financial Statements.
Condensed Balance Sheets
ALLIANT ENERGY CORPORATION (Parent Company Only)December 31,
CONDENSED BALANCE SHEETS20212020
(in millions)
ASSETS
Current assets:
Notes receivable from affiliated companies$16 $32 
Other5 
Total current assets21 37 
Investments:
Investments in consolidated subsidiaries7,061 6,664 
Other2 
Total investments7,063 6,666 
Other assets96 88 
Total assets$7,180 $6,791 
LIABILITIES AND EQUITY
Current liabilities:
Commercial paper$279 $132 
Notes payable to affiliated companies900 937 
Other4 29 
Total current liabilities1,183 1,098 
Other liabilities2 
Common equity:
Common stock and additional paid-in capital2,752 2,706 
Retained earnings3,255 2,996 
Shares in deferred compensation trust(12)(11)
Total common equity5,995 5,691 
Total liabilities and equity$7,180 $6,791 
Refer to accompanying Notes to Condensed Financial Statements.
Condensed Statements of Cash Flows
ALLIANT ENERGY CORPORATION (Parent Company Only)Year Ended December 31,
CONDENSED STATEMENTS OF CASH FLOWS202120202019
(in millions)
Net cash flows from operating activities$494 $396 $305 
Cash flows used for investing activities:
Capital contributions to consolidated subsidiaries(295)(429)(250)
Net change in notes receivable from and payable to affiliates(21)201 
Dividends from consolidated subsidiaries in excess of equity earnings50 — — 
Net cash flows used for investing activities(266)(228)(242)
Cash flows used for financing activities:
Common stock dividends(403)(377)(338)
Proceeds from issuance of common stock, net28 247 390 
Net change in commercial paper147 (37)(116)
Other (1)
Net cash flows used for financing activities(228)(168)(63)
Net increase (decrease) in cash, cash equivalents and restricted cash — — 
Cash, cash equivalents and restricted cash at beginning of period — — 
Cash, cash equivalents and restricted cash at end of period$— $— $— 
Supplemental cash flows information:
Cash (paid) refunded during the period for:
Interest($1)($2)($9)
Income taxes, net4 10 14 
Refer to accompanying Notes to Condensed Financial Statements.