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Related Parties (Tables) | 12 Months Ended
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Dec. 31, 2021
Related Party Transaction [Line Items] |
Services Provided, Sales Credited And Purchases Billed | The amounts billed for services provided, sales credited and purchases were as follows (in millions):
| IPL |  | WPL
| 2021 |  | 2020 |  | 2019 |  | 2021 |  | 2020 |  | 2019
Corporate Services billings | $180 |  | $176 |  | $185 |  | $154 |  | $142 |  | $142
Sales credited | 22 |  | 35 |  | 68 |  | 23 |  | 3 |  | 7
Purchases billed | 441 |  | 329 |  | 331 |  | 116 |  | 108 |  | 120
Net Intercompany Payables | As of December 31, net intercompany payables to Corporate Services were as follows (in millions):
| 2021 |  | 2020
IPL | $110 |  | $110
WPL | 83 |  | 73
Related Amounts Billed Between Parties | The related amounts billed between the parties were as follows (in millions):
| 2021 |  | 2020 |  | 2019
ATC billings to WPL | $122 |  | $108 |  | $109
WPL billings to ATC | 18 |  | 10 |  | 13
IPL [Member] |
Related Party Transaction [Line Items] |
Services Provided, Sales Credited And Purchases Billed | The amounts billed for services provided, sales credited and purchases were as follows (in millions):
| IPL |  | WPL
| 2021 |  | 2020 |  | 2019 |  | 2021 |  | 2020 |  | 2019
Corporate Services billings | $180 |  | $176 |  | $185 |  | $154 |  | $142 |  | $142
Sales credited | 22 |  | 35 |  | 68 |  | 23 |  | 3 |  | 7
Purchases billed | 441 |  | 329 |  | 331 |  | 116 |  | 108 |  | 120
Net Intercompany Payables | As of December 31, net intercompany payables to Corporate Services were as follows (in millions):
| 2021 |  | 2020
IPL | $110 |  | $110
WPL | 83 |  | 73
WPL [Member] |
Related Party Transaction [Line Items] |
Services Provided, Sales Credited And Purchases Billed | The amounts billed for services provided, sales credited and purchases were as follows (in millions):
| IPL |  | WPL
| 2021 |  | 2020 |  | 2019 |  | 2021 |  | 2020 |  | 2019
Corporate Services billings | $180 |  | $176 |  | $185 |  | $154 |  | $142 |  | $142
Sales credited | 22 |  | 35 |  | 68 |  | 23 |  | 3 |  | 7
Purchases billed | 441 |  | 329 |  | 331 |  | 116 |  | 108 |  | 120
Net Intercompany Payables | As of December 31, net intercompany payables to Corporate Services were as follows (in millions):
| 2021 |  | 2020
IPL | $110 |  | $110
WPL | 83 |  | 73
Related Amounts Billed Between Parties | The related amounts billed between the parties were as follows (in millions):
| 2021 |  | 2020 |  | 2019
ATC billings to WPL | $122 |  | $108 |  | $109
WPL billings to ATC | 18 |  | 10 |  | 13

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- Details
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- Details
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