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v3.22.1

Revenues (Tables) | 3 Months Ended
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Mar. 31, 2022
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 March 31 | 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Electric Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | $293 |  | $262 |  | $150 |  | $139 |  | $143 |  | $123
Retail - commercial | 188 |  | 172 |  | 118 |  | 110 |  | 70 |  | 62
Retail - industrial | 211 |  | 202 |  | 111 |  | 112 |  | 100 |  | 90
Wholesale | 47 |  | 40 |  | 15 |  | 11 |  | 32 |  | 29
Bulk power and other | 34 |  | 25 |  | 6 |  | 14 |  | 28 |  | 11
Total Electric Utility | 773 |  | 701 |  | 400 |  | 386 |  | 373 |  | 315
Gas Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | 158 |  | 99 |  | 85 |  | 52 |  | 73 |  | 47
Retail - commercial | 82 |  | 53 |  | 40 |  | 27 |  | 42 |  | 26
Retail - industrial | 8 |  | 5 |  | 5 |  | 3 |  | 3 |  | 2
Transportation/other | 14 |  | 13 |  | 9 |  | 9 |  | 5 |  | 4
Total Gas Utility | 262 |  | 170 |  | 139 |  | 91 |  | 123 |  | 79
Other Utility: |  |  |  |  |  |  |  |  |  |  |
Steam | 9 |  | 9 |  | 9 |  | 9 |  | — |  | —
Other utility | 2 |  | 4 |  | 2 |  | 3 |  | — |  | 1
Total Other Utility | 11 |  | 13 |  | 11 |  | 12 |  | — |  | 1
Non-Utility and Other: |  |  |  |  |  |  |  |  |  |  |
Travero and other | 22 |  | 17 |  | — |  | — |  | — |  | —
Total Non-Utility and Other | 22 |  | 17 |  | — |  | — |  | — |  | —
Total revenues | $1,068 |  | $901 |  | $550 |  | $489 |  | $496 |  | $395
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 March 31 | 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Electric Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | $293 |  | $262 |  | $150 |  | $139 |  | $143 |  | $123
Retail - commercial | 188 |  | 172 |  | 118 |  | 110 |  | 70 |  | 62
Retail - industrial | 211 |  | 202 |  | 111 |  | 112 |  | 100 |  | 90
Wholesale | 47 |  | 40 |  | 15 |  | 11 |  | 32 |  | 29
Bulk power and other | 34 |  | 25 |  | 6 |  | 14 |  | 28 |  | 11
Total Electric Utility | 773 |  | 701 |  | 400 |  | 386 |  | 373 |  | 315
Gas Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | 158 |  | 99 |  | 85 |  | 52 |  | 73 |  | 47
Retail - commercial | 82 |  | 53 |  | 40 |  | 27 |  | 42 |  | 26
Retail - industrial | 8 |  | 5 |  | 5 |  | 3 |  | 3 |  | 2
Transportation/other | 14 |  | 13 |  | 9 |  | 9 |  | 5 |  | 4
Total Gas Utility | 262 |  | 170 |  | 139 |  | 91 |  | 123 |  | 79
Other Utility: |  |  |  |  |  |  |  |  |  |  |
Steam | 9 |  | 9 |  | 9 |  | 9 |  | — |  | —
Other utility | 2 |  | 4 |  | 2 |  | 3 |  | — |  | 1
Total Other Utility | 11 |  | 13 |  | 11 |  | 12 |  | — |  | 1
Non-Utility and Other: |  |  |  |  |  |  |  |  |  |  |
Travero and other | 22 |  | 17 |  | — |  | — |  | — |  | —
Total Non-Utility and Other | 22 |  | 17 |  | — |  | — |  | — |  | —
Total revenues | $1,068 |  | $901 |  | $550 |  | $489 |  | $496 |  | $395
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 March 31 | 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Electric Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | $293 |  | $262 |  | $150 |  | $139 |  | $143 |  | $123
Retail - commercial | 188 |  | 172 |  | 118 |  | 110 |  | 70 |  | 62
Retail - industrial | 211 |  | 202 |  | 111 |  | 112 |  | 100 |  | 90
Wholesale | 47 |  | 40 |  | 15 |  | 11 |  | 32 |  | 29
Bulk power and other | 34 |  | 25 |  | 6 |  | 14 |  | 28 |  | 11
Total Electric Utility | 773 |  | 701 |  | 400 |  | 386 |  | 373 |  | 315
Gas Utility: |  |  |  |  |  |  |  |  |  |  |
Retail - residential | 158 |  | 99 |  | 85 |  | 52 |  | 73 |  | 47
Retail - commercial | 82 |  | 53 |  | 40 |  | 27 |  | 42 |  | 26
Retail - industrial | 8 |  | 5 |  | 5 |  | 3 |  | 3 |  | 2
Transportation/other | 14 |  | 13 |  | 9 |  | 9 |  | 5 |  | 4
Total Gas Utility | 262 |  | 170 |  | 139 |  | 91 |  | 123 |  | 79
Other Utility: |  |  |  |  |  |  |  |  |  |  |
Steam | 9 |  | 9 |  | 9 |  | 9 |  | — |  | —
Other utility | 2 |  | 4 |  | 2 |  | 3 |  | — |  | 1
Total Other Utility | 11 |  | 13 |  | 11 |  | 12 |  | — |  | 1
Non-Utility and Other: |  |  |  |  |  |  |  |  |  |  |
Travero and other | 22 |  | 17 |  | — |  | — |  | — |  | —
Total Non-Utility and Other | 22 |  | 17 |  | — |  | — |  | — |  | —
Total revenues | $1,068 |  | $901 |  | $550 |  | $489 |  | $496 |  | $395

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