v3.25.2
Condensed Consolidated Statements Of Cash Flows - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Cash flows from operating activities:    
Net income $ 387 $ 245
Adjustments to reconcile net income to net cash flows from operating activities:    
Depreciation and amortization 420 376
Deferred tax expense (benefit) and tax credits (100) (47)
Asset valuation charge for IPL's Lansing Generating Station 0 60
Other (1) (4)
Other changes in assets and liabilities:    
Accounts receivable (289) (242)
Accounts payable (12) 75
Regulatory liabilities 71 (12)
Deferred income taxes 86 86
Other (70) 25
Net cash flows from operating activities 492 562
Cash flows from (used for) investing activities:    
Utility business construction and acquisition expenditures (976) (870)
Other construction and acquisition expenditures (89) (90)
Cash receipts on sold receivables 198 306
Proceeds from sales of partial ownership interests in West Riverside 0 123
Other (27) (2)
Net cash flows from (used for) investing activities (894) (533)
Cash flows from (used for) financing activities:    
Common stock dividends (261) (246)
Proceeds from issuance of long-term debt 1,162 969
Payments to retire long-term debt 0 (305)
Net change in commercial paper (266) (423)
Other 15 6
Net cash flows from (used for) financing activities 650 1
Net increase (decrease) in cash, cash equivalents and restricted cash 248 30
Cash, cash equivalents and restricted cash at beginning of period 81 63
Cash, cash equivalents and restricted cash at end of period 329 93
Supplemental cash flows information:    
Interest (239) (207)
Income taxes, net 91 89
Significant non-cash investing and financing activities:    
Accrued capital expenditures 204 272
Beneficial interest obtained in exchange for securitized accounts receivable 235 171
Indemnification Agreement [Member] | Renewable Tax Credits Transferred [Member]    
Supplemental cash flows information:    
Proceeds from renewable tax credits transferred to other corporate taxpayers 97 99
IPL [Member]    
Cash flows from operating activities:    
Net income 209 81
Adjustments to reconcile net income to net cash flows from operating activities:    
Depreciation and amortization 230 193
Deferred tax expense (benefit) and tax credits (59) (35)
Asset valuation charge for IPL's Lansing Generating Station 0 60
Other (14) 7
Other changes in assets and liabilities:    
Accounts receivable (273) (251)
Regulatory assets (47) (1)
Deferred income taxes 98 92
Other (36) 1
Net cash flows from operating activities 108 147
Cash flows from (used for) investing activities:    
Utility business construction and acquisition expenditures (628) (500)
Cash receipts on sold receivables 198 306
Other (11) (15)
Net cash flows from (used for) investing activities (441) (209)
Cash flows from (used for) financing activities:    
Common stock dividends (180) (100)
Capital contributions from parent 145 125
Proceeds from issuance of long-term debt 594 0
Net change in commercial paper (50) 0
Other (1) (7)
Net cash flows from (used for) financing activities 508 18
Net increase (decrease) in cash, cash equivalents and restricted cash 175 (44)
Cash, cash equivalents and restricted cash at beginning of period 29 53
Cash, cash equivalents and restricted cash at end of period 204 9
Supplemental cash flows information:    
Interest (97) (85)
Income taxes, net 68 92
Significant non-cash investing and financing activities:    
Accrued capital expenditures 149 119
Beneficial interest obtained in exchange for securitized accounts receivable 235 171
IPL [Member] | Indemnification Agreement [Member] | Renewable Tax Credits Transferred [Member]    
Supplemental cash flows information:    
Proceeds from renewable tax credits transferred to other corporate taxpayers 73 71
WPL [Member]    
Cash flows from operating activities:    
Net income 198 156
Adjustments to reconcile net income to net cash flows from operating activities:    
Depreciation and amortization 183 178
Deferred tax expense (benefit) and tax credits (43) (20)
Other (4) (4)
Other changes in assets and liabilities:    
Accounts receivable (33) 10
Regulatory assets 18 44
Accounts payable (9) 41
Regulatory liabilities 65 5
Other (38) (19)
Net cash flows from operating activities 337 391
Cash flows from (used for) investing activities:    
Utility business construction and acquisition expenditures (348) (370)
Proceeds from sales of partial ownership interests in West Riverside 0 123
Other (14) 0
Net cash flows from (used for) investing activities (362) (247)
Cash flows from (used for) financing activities:    
Common stock dividends (119) (98)
Capital contributions from parent 0 55
Proceeds from issuance of long-term debt 0 297
Net change in commercial paper 109 (318)
Other (6) (7)
Net cash flows from (used for) financing activities (16) (71)
Net increase (decrease) in cash, cash equivalents and restricted cash (41) 73
Cash, cash equivalents and restricted cash at beginning of period 51 7
Cash, cash equivalents and restricted cash at end of period 10 80
Supplemental cash flows information:    
Interest (88) (76)
Income taxes, net 8 (10)
Significant non-cash investing and financing activities:    
Accrued capital expenditures 48 146
WPL [Member] | Indemnification Agreement [Member] | Renewable Tax Credits Transferred [Member]    
Supplemental cash flows information:    
Proceeds from renewable tax credits transferred to other corporate taxpayers $ 24 $ 28