XML 55 R35.htm IDEA: XBRL DOCUMENT v3.21.2
Related Parties (Tables)
 6 Months Ended
Jun. 30, 2021
Related Party Transactions [Line Items]  
Services Provided, Sales Credited And Purchases The amounts billed for services provided, sales credited and purchases for the three and six months ended June 30 were as follows (in millions):
IPLWPL
Three MonthsSix MonthsThree MonthsSix Months
20212020202120202021202020212020
Corporate Services billings$48$44$88$81$41$35$76$67
Sales credited4105256274
Purchases billed995724213821204740
Net Intercompany Payables
Net intercompany payables to Corporate Services were as follows (in millions):
IPLWPL
June 30, 2021December 31, 2020June 30, 2021December 31, 2020
Net payables to Corporate Services$126$110$72$73
Related Amounts Billed Between Parties The related amounts billed between the parties for the three and six months ended June 30 were as follows (in millions):
Three MonthsSix Months
2021202020212020
ATC billings to WPL$30$25$62$53
WPL billings to ATC6396
IPL [Member]  
Related Party Transactions [Line Items]  
Services Provided, Sales Credited And Purchases The amounts billed for services provided, sales credited and purchases for the three and six months ended June 30 were as follows (in millions):
IPLWPL
Three MonthsSix MonthsThree MonthsSix Months
20212020202120202021202020212020
Corporate Services billings$48$44$88$81$41$35$76$67
Sales credited4105256274
Purchases billed995724213821204740
Net Intercompany Payables
Net intercompany payables to Corporate Services were as follows (in millions):
IPLWPL
June 30, 2021December 31, 2020June 30, 2021December 31, 2020
Net payables to Corporate Services$126$110$72$73
WPL [Member]  
Related Party Transactions [Line Items]  
Services Provided, Sales Credited And Purchases The amounts billed for services provided, sales credited and purchases for the three and six months ended June 30 were as follows (in millions):
IPLWPL
Three MonthsSix MonthsThree MonthsSix Months
20212020202120202021202020212020
Corporate Services billings$48$44$88$81$41$35$76$67
Sales credited4105256274
Purchases billed995724213821204740
Net Intercompany Payables
Net intercompany payables to Corporate Services were as follows (in millions):
IPLWPL
June 30, 2021December 31, 2020June 30, 2021December 31, 2020
Net payables to Corporate Services$126$110$72$73
Related Amounts Billed Between Parties The related amounts billed between the parties for the three and six months ended June 30 were as follows (in millions):
Three MonthsSix Months
2021202020212020
ATC billings to WPL$30$25$62$53
WPL billings to ATC6396