XML 61 R50.htm IDEA: XBRL DOCUMENT
v3.22.2.2

INVESTMENT IN TRANSMISSION AFFILIATES (Tables) - Transmission Affiliates | 9 Months Ended
--- | ---
Sep. 30, 2022
Investment in transmission affiliates |
Schedule of changes to our investments in transmission affiliates | The following tables provide a reconciliation of the changes in our investments in ATC and ATC Holdco:
|  | Three Months Ended September 30, 2022
(in millions) |  | ATC |  | ATC Holdco |  | Total
Balance at beginning of period |  | $ | 1,813.6 |  |  | $ | 23.6 |  |  | $ | 1,837.2 |
Add: Earnings from equity method investment |  | 63.2 |  |  | 0.5 |  |  | 63.7 |
Add: Capital contributions |  | 9.1 |  |  | — |  |  | 9.1 |
Less: Distributions |  | 34.1 |  |  | — |  |  | 34.1 |
Balance at end of period |  | $ | 1,851.8 |  |  | $ | 24.1 |  |  | $ | 1,875.9 |
|  | Three Months Ended September 30, 2021
(in millions) |  | ATC |  | ATC Holdco |  | Total
Balance at beginning of period |  | $ | 1,749.7 |  |  | $ | 32.3 |  |  | $ | 1,782.0 |
Add: Earnings from equity method investment |  | 41.7 |  |  | 0.6 |  |  | 42.3 |
Less: Distributions |  | 33.0 |  |  | — |  |  | 33.0 |
Balance at end of period |  | $ | 1,758.4 |  |  | $ | 32.9 |  |  | $ | 1,791.3 |
|  | Nine Months Ended September 30, 2022
(in millions) |  | ATC |  | ATC Holdco |  | Total
Balance at beginning of period |  | $ | 1,766.9 |  |  | $ | 22.5 |  |  | $ | 1,789.4 |
Add: Earnings from equity method investment |  | 146.8 |  |  | 1.6 |  |  | 148.4 |
Add: Capital contributions |  | 39.4 |  |  | — |  |  | 39.4 |
Less: Distributions |  | 101.3 |  |  | — |  |  | 101.3 |
Balance at end of period |  | $ | 1,851.8 |  |  | $ | 24.1 |  |  | $ | 1,875.9 |
|  | Nine Months Ended September 30, 2021
(in millions) |  | ATC |  | ATC Holdco |  | Total
Balance at beginning of period |  | $ | 1,733.5 |  |  | $ | 30.8 |  |  | $ | 1,764.3 |
Add: Earnings from equity method investment |  | 124.1 |  |  | 2.1 |  |  | 126.2 |
Less: Distributions |  | 99.2 |  |  | — |  |  | 99.2 |
Balance at end of period |  | $ | 1,758.4 |  |  | $ | 32.9 |  |  | $ | 1,791.3 |
Schedule of significant related party transactions with ATC | The following table summarizes our significant related party transactions with ATC:
|  | Three Months Ended September 30 |  | Nine Months Ended September 30
(in millions) |  | 2022 |  | 2021 |  | 2022 |  | 2021
Charges to ATC for services and construction |  | $ | 3.9 |  |  | $ | 5.5 |  |  | $ | 14.8 |  |  | $ | 17.2 |
Charges from ATC for network transmission services |  | 90.9 |  |  | 81.6 |  |  | 272.8 |  |  | 263.3 |
Schedule of receivables and payables with ATC | Our balance sheets included the following receivables and payables for services provided to or received from ATC:
(in millions) |  | September 30, 2022 |  | December 31, 2021
Accounts receivable for services provided to ATC |  | $ | 1.6 |  |  | $ | 2.0 |
Accounts payable for services received from ATC |  | 30.3 |  |  | 30.2 |
Amounts due from ATC for transmission infrastructure upgrades (1) |  | 24.1 |  |  | 13.0 |
(1)These transmission infrastructure upgrades were primarily related to the construction of WE's and WPS's renewable energy projects.
Schedule of summarized income statement data for ATC | Summarized financial data for ATC is included in the tables below:
|  | Three Months Ended September 30 |  | Nine Months Ended September 30
(in millions) |  | 2022 |  | 2021 |  | 2022 |  | 2021
Income statement data |  |  |  |  |  |  |  |
Operating revenues |  | $ | 169.8 |  |  | $ | 186.8 |  |  | $ | 552.4 |  |  | $ | 561.4 |
Operating expenses |  | 97.7 |  |  | 91.3 |  |  | 288.4 |  |  | 278.8 |
Other expense, net |  | 34.5 |  |  | 28.6 |  |  | 91.3 |  |  | 85.2 |
Net income |  | $ | 37.6 |  |  | $ | 66.9 |  |  | $ | 172.7 |  |  | $ | 197.4 |
Schedule of summarized balance sheet data for ATC |
(in millions) |  | September 30, 2022 |  | December 31, 2021
Balance sheet data |  |  |  |
Current assets |  | $ | 95.9 |  |  | $ | 89.8 |
Noncurrent assets |  | 5,901.8 |  |  | 5,628.1 |
Total assets |  | $ | 5,997.7 |  |  | $ | 5,717.9 |
Current liabilities |  | $ | 498.4 |  |  | $ | 436.9 |
Long-term debt |  | 2,612.3 |  |  | 2,513.0 |
Other noncurrent liabilities |  | 464.2 |  |  | 422.0 |
Members' equity |  | 2,422.8 |  |  | 2,346.0 |
Total liabilities and members' equity |  | $ | 5,997.7 |  |  | $ | 5,717.9 |

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
Name: | us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular reconciliation of beginning and ending balances of investments accounted for under the equity method of accounting. + References No definition available. + Details
Name: | wec_ScheduleOfChangesToEquityMethodInvestmentsTableTextBlock
Namespace Prefix: | wec_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of summarized balance sheet data related to significant equity method investments. + References No definition available. + Details
Name: | wec_ScheduleOfEquityMethodInvestmentsSummarizedBalanceSheetDataTableTextBlock
Namespace Prefix: | wec_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of summarized income statement data related to significant equity method investments. + References No definition available. + Details
Name: | wec_ScheduleOfEquityMethodInvestmentsSummarizedIncomeStatementDataTableTextBlock
Namespace Prefix: | wec_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of balance sheet information related to transactions entered into with related parties. + References No definition available. + Details
Name: | wec_ScheduleOfRelatedPartyTransactionsBalanceSheetInformationTableTextBlock
Namespace Prefix: | wec_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=wec_TransmissionAffiliatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |