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Consolidated Balance Sheets - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 39 | $ 54
Accounts receivable, less allowance for expected credit losses | 440 | 412
Production fuel, at weighted average cost | 51 | 66
Gas stored underground, at weighted average cost | 82 | 46
Materials and supplies, at weighted average cost | 113 | 105
Regulatory assets | 104 | 81
Other | 240 | 123
Total current assets | 1,069 | 887
Property, plant and equipment, net | 14,987 | 14,336
Investments: |  |
ATC Holdings | 338 | 331
Other | 179 | 154
Total investments | 517 | 485
Other assets: |  |
Regulatory assets | 1,836 | 1,929
Deferred charges and other | 144 | 73
Total other assets | 1,980 | 2,002
Total assets | 18,553 | 17,710
Current liabilities: |  |
Current maturities of long-term debt | 633 | 8
Commercial paper | 515 | 389
Accounts payable | 436 | 377
Accrued taxes | 58 | 67
Regulatory liabilities | 186 | 249
Other | 226 | 207
Total current liabilities | 2,054 | 1,297
Long-term debt, net (excluding current portion) | 6,735 | 6,769
Other liabilities: |  |
Deferred tax liabilities | 1,927 | 1,814
Regulatory liabilities | 1,085 | 1,057
Pension and other benefit obligations | 374 | 511
Other | 388 | 374
Total other liabilities | 3,774 | 3,756
Commitments and contingencies (Note 17) |  |
Common equity: |  |
Common stock | 3 | 2
Additional paid-in capital | 2,749 | 2,704
Retained earnings | 3,250 | 2,994
Accumulated other comprehensive loss | 0 | (1)
Shares in deferred compensation trust - 383,532 and 380,542 shares at a weighted average cost of $30.59 and $28.73 per share | (12) | (11)
Total common equity | 5,990 | 5,688
Cumulative preferred stock of Interstate Power and Light Company | 0 | 200
Total equity | 5,990 | 5,888
Total liabilities and equity | 18,553 | 17,710
IPL [Member] |  |
Current assets: |  |
Cash and cash equivalents | 34 | 50
Accounts receivable, less allowance for expected credit losses | 241 | 210
Income taxes refunds receivable | 8 | 26
Production fuel, at weighted average cost | 29 | 48
Gas stored underground, at weighted average cost | 40 | 20
Materials and supplies, at weighted average cost | 70 | 63
Regulatory assets | 73 | 52
Other | 69 | 27
Total current assets | 564 | 496
Property, plant and equipment, net | 7,983 | 7,889
Other assets: |  |
Regulatory assets | 1,370 | 1,431
Deferred charges and other | 79 | 33
Total other assets | 1,449 | 1,464
Total assets | 9,996 | 9,849
Current liabilities: |  |
Current maturities of long-term debt | 0 | 0
Commercial paper | 0 | 0
Accounts payable | 173 | 162
Accounts payable to associated companies | 39 | 45
Accrued taxes | 56 | 54
Regulatory liabilities | 84 | 103
Accrued interest | 36 | 34
Other | 67 | 49
Total current liabilities | 455 | 447
Long-term debt, net (excluding current portion) | 3,643 | 3,345
Other liabilities: |  |
Deferred tax liabilities | 1,083 | 1,035
Regulatory liabilities | 607 | 573
Pension and other benefit obligations | 127 | 186
Other | 312 | 299
Total other liabilities | 2,129 | 2,093
Commitments and contingencies (Note 17) |  |
Common equity: |  |
Common stock | 33 | 33
Additional paid-in capital | 2,807 | 2,752
Retained earnings | 929 | 979
Total common equity | 3,769 | 3,764
Cumulative preferred stock of Interstate Power and Light Company | 0 | 200
Total equity | 3,769 | 3,964
Total liabilities and equity | 9,996 | 9,849
WPL [Member] |  |
Current assets: |  |
Cash and cash equivalents | 2 | 3
Accounts receivable, less allowance for expected credit losses | 188 | 192
Production fuel, at weighted average cost | 23 | 18
Gas stored underground, at weighted average cost | 42 | 26
Materials and supplies, at weighted average cost | 41 | 40
Regulatory assets | 31 | 29
Prepaid gross receipts tax | 40 | 42
Other | 86 | 12
Total current assets | 453 | 362
Property, plant and equipment, net | 6,538 | 6,022
Other assets: |  |
Regulatory assets | 466 | 498
Deferred charges and other | 61 | 30
Total other assets | 527 | 528
Total assets | 7,518 | 6,912
Current liabilities: |  |
Current maturities of long-term debt | 250 | 0
Commercial paper | 236 | 257
Accounts payable | 190 | 154
Accounts payable to associated companies | 39 | 35
Regulatory liabilities | 102 | 146
Other | 73 | 82
Total current liabilities | 890 | 674
Long-term debt, net (excluding current portion) | 2,179 | 2,130
Other liabilities: |  |
Deferred tax liabilities | 753 | 702
Regulatory liabilities | 478 | 484
Pension and other benefit obligations | 159 | 222
Other | 236 | 222
Total other liabilities | 1,626 | 1,630
Commitments and contingencies (Note 17) |  |
Common equity: |  |
Common stock | 66 | 66
Additional paid-in capital | 1,704 | 1,459
Retained earnings | 1,053 | 953
Total common equity | 2,823 | 2,478
Total equity | 2,823 | 2,478
Total liabilities and equity | $ 7,518 | $ 6,912

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