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v3.23.2

Revenues (Tables) | 6 Months Ended
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Jun. 30, 2023
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue | Disaggregation of revenues from contracts with customers, which correlates to revenues for each reportable segment, was as follows (in millions):
| Alliant Energy |  | IPL |  | WPL
Three Months Ended June 30 | 2023 |  | 2022 |  | 2023 |  | 2022 |  | 2023 |  | 2022
Electric Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | $284 |  | $289 |  | $151 |  | $158 |  | $133 |  | $131
Retail - commercial | 201 |  | 196 |  | 129 |  | 127 |  | 72 |  | 69
Retail - industrial | 245 |  | 244 |  | 130 |  | 136 |  | 115 |  | 108
Wholesale | 49 |  | 54 |  | 14 |  | 16 |  | 35 |  | 38
Bulk power and other | 20 |  | 29 |  | 7 |  | 5 |  | 13 |  | 24
Total Electric Utility | 799 |  | 812 |  | 431 |  | 442 |  | 368 |  | 370
Gas Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | 42 |  | 51 |  | 24 |  | 28 |  | 18 |  | 23
Retail - commercial | 22 |  | 27 |  | 12 |  | 14 |  | 10 |  | 13
Retail - industrial | 3 |  | 3 |  | 2 |  | 2 |  | 1 |  | 1
Transportation/other | 10 |  | 13 |  | 6 |  | 8 |  | 4 |  | 5
Total Gas Utility | 77 |  | 94 |  | 44 |  | 52 |  | 33 |  | 42
Other Utility: |  |  |  |  |  |  |  |  |  |  |
Steam | 11 |  | 11 |  | 11 |  | 11 |  | — |  | —
Other utility | 2 |  | 2 |  | 1 |  | 1 |  | 1 |  | 1
Total Other Utility | 13 |  | 13 |  | 12 |  | 12 |  | 1 |  | 1
Non-Utility and Other: |  |  |  |  |  |  |  |  |  |  |
Travero and other | 23 |  | 24 |  | — |  | — |  | — |  | —
Total Non-Utility and Other | 23 |  | 24 |  | — |  | — |  | — |  | —
Total revenues | $912 |  | $943 |  | $487 |  | $506 |  | $402 |  | $413
| Alliant Energy |  | IPL |  | WPL
Six Months Ended June 30 | 2023 |  | 2022 |  | 2023 |  | 2022 |  | 2023 |  | 2022
Electric Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | $569 |  | $581 |  | $294 |  | $308 |  | $275 |  | $273
Retail - commercial | 385 |  | 386 |  | 241 |  | 246 |  | 144 |  | 140
Retail - industrial | 460 |  | 453 |  | 236 |  | 246 |  | 224 |  | 207
Wholesale | 95 |  | 101 |  | 26 |  | 31 |  | 69 |  | 70
Bulk power and other | 58 |  | 65 |  | 22 |  | 12 |  | 36 |  | 53
Total Electric Utility | 1,567 |  | 1,586 |  | 819 |  | 843 |  | 748 |  | 743
Gas Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | 210 |  | 210 |  | 117 |  | 113 |  | 93 |  | 97
Retail - commercial | 110 |  | 109 |  | 56 |  | 54 |  | 54 |  | 55
Retail - industrial | 9 |  | 11 |  | 6 |  | 7 |  | 3 |  | 4
Transportation/other | 24 |  | 26 |  | 15 |  | 17 |  | 9 |  | 9
Total Gas Utility | 353 |  | 356 |  | 194 |  | 191 |  | 159 |  | 165
Other Utility: |  |  |  |  |  |  |  |  |  |  |
Steam | 22 |  | 20 |  | 22 |  | 20 |  | — |  | —
Other utility | 3 |  | 3 |  | 2 |  | 2 |  | 1 |  | 1
Total Other Utility | 25 |  | 23 |  | 24 |  | 22 |  | 1 |  | 1
Non-Utility and Other: |  |  |  |  |  |  |  |  |  |  |
Travero and other | 45 |  | 47 |  | — |  | — |  | — |  | —
Total Non-Utility and Other | 45 |  | 47 |  | — |  | — |  | — |  | —
Total revenues | $1,990 |  | $2,012 |  | $1,037 |  | $1,056 |  | $908 |  | $909
IPL [Member] |
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue | Disaggregation of revenues from contracts with customers, which correlates to revenues for each reportable segment, was as follows (in millions):
| Alliant Energy |  | IPL |  | WPL
Three Months Ended June 30 | 2023 |  | 2022 |  | 2023 |  | 2022 |  | 2023 |  | 2022
Electric Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | $284 |  | $289 |  | $151 |  | $158 |  | $133 |  | $131
Retail - commercial | 201 |  | 196 |  | 129 |  | 127 |  | 72 |  | 69
Retail - industrial | 245 |  | 244 |  | 130 |  | 136 |  | 115 |  | 108
Wholesale | 49 |  | 54 |  | 14 |  | 16 |  | 35 |  | 38
Bulk power and other | 20 |  | 29 |  | 7 |  | 5 |  | 13 |  | 24
Total Electric Utility | 799 |  | 812 |  | 431 |  | 442 |  | 368 |  | 370
Gas Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | 42 |  | 51 |  | 24 |  | 28 |  | 18 |  | 23
Retail - commercial | 22 |  | 27 |  | 12 |  | 14 |  | 10 |  | 13
Retail - industrial | 3 |  | 3 |  | 2 |  | 2 |  | 1 |  | 1
Transportation/other | 10 |  | 13 |  | 6 |  | 8 |  | 4 |  | 5
Total Gas Utility | 77 |  | 94 |  | 44 |  | 52 |  | 33 |  | 42
Other Utility: |  |  |  |  |  |  |  |  |  |  |
Steam | 11 |  | 11 |  | 11 |  | 11 |  | — |  | —
Other utility | 2 |  | 2 |  | 1 |  | 1 |  | 1 |  | 1
Total Other Utility | 13 |  | 13 |  | 12 |  | 12 |  | 1 |  | 1
Non-Utility and Other: |  |  |  |  |  |  |  |  |  |  |
Travero and other | 23 |  | 24 |  | — |  | — |  | — |  | —
Total Non-Utility and Other | 23 |  | 24 |  | — |  | — |  | — |  | —
Total revenues | $912 |  | $943 |  | $487 |  | $506 |  | $402 |  | $413
| Alliant Energy |  | IPL |  | WPL
Six Months Ended June 30 | 2023 |  | 2022 |  | 2023 |  | 2022 |  | 2023 |  | 2022
Electric Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | $569 |  | $581 |  | $294 |  | $308 |  | $275 |  | $273
Retail - commercial | 385 |  | 386 |  | 241 |  | 246 |  | 144 |  | 140
Retail - industrial | 460 |  | 453 |  | 236 |  | 246 |  | 224 |  | 207
Wholesale | 95 |  | 101 |  | 26 |  | 31 |  | 69 |  | 70
Bulk power and other | 58 |  | 65 |  | 22 |  | 12 |  | 36 |  | 53
Total Electric Utility | 1,567 |  | 1,586 |  | 819 |  | 843 |  | 748 |  | 743
Gas Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | 210 |  | 210 |  | 117 |  | 113 |  | 93 |  | 97
Retail - commercial | 110 |  | 109 |  | 56 |  | 54 |  | 54 |  | 55
Retail - industrial | 9 |  | 11 |  | 6 |  | 7 |  | 3 |  | 4
Transportation/other | 24 |  | 26 |  | 15 |  | 17 |  | 9 |  | 9
Total Gas Utility | 353 |  | 356 |  | 194 |  | 191 |  | 159 |  | 165
Other Utility: |  |  |  |  |  |  |  |  |  |  |
Steam | 22 |  | 20 |  | 22 |  | 20 |  | — |  | —
Other utility | 3 |  | 3 |  | 2 |  | 2 |  | 1 |  | 1
Total Other Utility | 25 |  | 23 |  | 24 |  | 22 |  | 1 |  | 1
Non-Utility and Other: |  |  |  |  |  |  |  |  |  |  |
Travero and other | 45 |  | 47 |  | — |  | — |  | — |  | —
Total Non-Utility and Other | 45 |  | 47 |  | — |  | — |  | — |  | —
Total revenues | $1,990 |  | $2,012 |  | $1,037 |  | $1,056 |  | $908 |  | $909
WPL [Member] |
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue | Disaggregation of revenues from contracts with customers, which correlates to revenues for each reportable segment, was as follows (in millions):
| Alliant Energy |  | IPL |  | WPL
Three Months Ended June 30 | 2023 |  | 2022 |  | 2023 |  | 2022 |  | 2023 |  | 2022
Electric Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | $284 |  | $289 |  | $151 |  | $158 |  | $133 |  | $131
Retail - commercial | 201 |  | 196 |  | 129 |  | 127 |  | 72 |  | 69
Retail - industrial | 245 |  | 244 |  | 130 |  | 136 |  | 115 |  | 108
Wholesale | 49 |  | 54 |  | 14 |  | 16 |  | 35 |  | 38
Bulk power and other | 20 |  | 29 |  | 7 |  | 5 |  | 13 |  | 24
Total Electric Utility | 799 |  | 812 |  | 431 |  | 442 |  | 368 |  | 370
Gas Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | 42 |  | 51 |  | 24 |  | 28 |  | 18 |  | 23
Retail - commercial | 22 |  | 27 |  | 12 |  | 14 |  | 10 |  | 13
Retail - industrial | 3 |  | 3 |  | 2 |  | 2 |  | 1 |  | 1
Transportation/other | 10 |  | 13 |  | 6 |  | 8 |  | 4 |  | 5
Total Gas Utility | 77 |  | 94 |  | 44 |  | 52 |  | 33 |  | 42
Other Utility: |  |  |  |  |  |  |  |  |  |  |
Steam | 11 |  | 11 |  | 11 |  | 11 |  | — |  | —
Other utility | 2 |  | 2 |  | 1 |  | 1 |  | 1 |  | 1
Total Other Utility | 13 |  | 13 |  | 12 |  | 12 |  | 1 |  | 1
Non-Utility and Other: |  |  |  |  |  |  |  |  |  |  |
Travero and other | 23 |  | 24 |  | — |  | — |  | — |  | —
Total Non-Utility and Other | 23 |  | 24 |  | — |  | — |  | — |  | —
Total revenues | $912 |  | $943 |  | $487 |  | $506 |  | $402 |  | $413
| Alliant Energy |  | IPL |  | WPL
Six Months Ended June 30 | 2023 |  | 2022 |  | 2023 |  | 2022 |  | 2023 |  | 2022
Electric Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | $569 |  | $581 |  | $294 |  | $308 |  | $275 |  | $273
Retail - commercial | 385 |  | 386 |  | 241 |  | 246 |  | 144 |  | 140
Retail - industrial | 460 |  | 453 |  | 236 |  | 246 |  | 224 |  | 207
Wholesale | 95 |  | 101 |  | 26 |  | 31 |  | 69 |  | 70
Bulk power and other | 58 |  | 65 |  | 22 |  | 12 |  | 36 |  | 53
Total Electric Utility | 1,567 |  | 1,586 |  | 819 |  | 843 |  | 748 |  | 743
Gas Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | 210 |  | 210 |  | 117 |  | 113 |  | 93 |  | 97
Retail - commercial | 110 |  | 109 |  | 56 |  | 54 |  | 54 |  | 55
Retail - industrial | 9 |  | 11 |  | 6 |  | 7 |  | 3 |  | 4
Transportation/other | 24 |  | 26 |  | 15 |  | 17 |  | 9 |  | 9
Total Gas Utility | 353 |  | 356 |  | 194 |  | 191 |  | 159 |  | 165
Other Utility: |  |  |  |  |  |  |  |  |  |  |
Steam | 22 |  | 20 |  | 22 |  | 20 |  | — |  | —
Other utility | 3 |  | 3 |  | 2 |  | 2 |  | 1 |  | 1
Total Other Utility | 25 |  | 23 |  | 24 |  | 22 |  | 1 |  | 1
Non-Utility and Other: |  |  |  |  |  |  |  |  |  |  |
Travero and other | 45 |  | 47 |  | — |  | — |  | — |  | —
Total Non-Utility and Other | 45 |  | 47 |  | — |  | — |  | — |  | —
Total revenues | $1,990 |  | $2,012 |  | $1,037 |  | $1,056 |  | $908 |  | $909

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