XML 124 R110.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Common Equity - Dividend Restrictions (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) period | Dec. 31, 2020
Dividend Payment Restrictions |  |
Junior notes minimum interest deferral payment period (in periods) | period | 1 |
Junior notes maximum interest payment deferral period (in years) | 10 years |
Restricted net assets of consolidated subsidiaries | $ 9,000 |
Undistributed earnings of investees accounted for by the equity method | $ 412 |
WE |  |
Dividend Payment Restrictions |  |
Maximum debt to capitalization ratio | 65.00% |
WE | 3.60% Serial Preferred Stock |  |
Dividend Payment Restrictions |  |
Dividend rate (as a percent) | 3.60% | 3.60%
WE | 3.60% Serial Preferred Stock | Common stock equity to total capitalization is between 25% and 20% |  |
Dividend Payment Restrictions |  |
Period of dividend restrictions | 12 months |
WE | 3.60% Serial Preferred Stock | Common stock equity to total capitalization is less than 20% |  |
Dividend Payment Restrictions |  |
Period of dividend restrictions | 12 months |
WE | 3.60% Serial Preferred Stock | Minimum | Common stock equity to total capitalization is between 25% and 20% |  |
Dividend Payment Restrictions |  |
Percentage of common equity to total capitalization required to be maintained | 20.00% |
WE | 3.60% Serial Preferred Stock | Maximum | Common stock equity to total capitalization is between 25% and 20% |  |
Dividend Payment Restrictions |  |
Percentage of net income for which dividends can be declared | 75.00% |
Percentage of common equity to total capitalization required to be maintained | 25.00% |
WE | 3.60% Serial Preferred Stock | Maximum | Common stock equity to total capitalization is less than 20% |  |
Dividend Payment Restrictions |  |
Percentage of net income for which dividends can be declared | 50.00% |
Percentage of common equity to total capitalization required to be maintained | 20.00% |
WE | Public Service Commission of Wisconsin | Minimum |  |
Dividend Payment Restrictions |  |
Common equity ratio required to be maintained (as a percent) | 52.50% |
WPS |  |
Dividend Payment Restrictions |  |
Maximum debt to capitalization ratio | 65.00% |
WPS | Public Service Commission of Wisconsin | Minimum |  |
Dividend Payment Restrictions |  |
Common equity ratio required to be maintained (as a percent) | 52.50% |
WG | Public Service Commission of Wisconsin | Minimum |  |
Dividend Payment Restrictions |  |
Common equity ratio required to be maintained (as a percent) | 52.50% |
UMERC |  |
Dividend Payment Restrictions |  |
Maximum debt to capitalization ratio | 65.00% |
Bluewater Gas Storage, LLC |  |
Dividend Payment Restrictions |  |
Maximum debt to capitalization ratio | 65.00% |
ATC Holding LLC |  |
Dividend Payment Restrictions |  |
Maximum debt to capitalization ratio | 65.00% |
WECI Wind Holding I |  |
Dividend Payment Restrictions |  |
Minimum debt service ratio to be maintained for 12-months prior to distribution | 1.2 |
Period needed to maintain minimum debt service coverage ratio | 12 months |

X
- Definition Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(3)(ii)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
Name: | us-gaap_AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The percentage rate used to calculate dividend payments on preferred stock. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 + Details
Name: | us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of consolidated retained earnings that represent undistributed (not yet received) earnings from 50% or less owned persons accounted for by the equity method (equity method investees). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(2)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6462270&loc=d3e57205-112772 + Details
Name: | us-gaap_RetainedEarningsUndistributedEarningsFromEquityMethodInvestees
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the common equity ratio which is required to be maintained + References No definition available. + Details
Name: | wec_CommonEquityRatiotobeMaintained
Namespace Prefix: | wec_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage of common stockholders equity to total capitalization used as a threshold for dividend payment restrictions. + References No definition available. + Details
Name: | wec_DividendPaymentRestrictionsPercentageofCommonStockholdersEquitytoTotalCapitalization
Namespace Prefix: | wec_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of periods for which interest payments on junior subordinated notes can be deferred. + References No definition available. + Details
Name: | wec_Juniornotesminimuminterestdeferralpaymentperiodinperiods
Namespace Prefix: | wec_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the maximum debt to capitalization ratio. + References No definition available. + Details
Name: | wec_MaximumDebttoCapitalizationRatio
Namespace Prefix: | wec_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of consecutive years for which interest payments on junior subordinated notes can be deferred. + References No definition available. + Details
Name: | wec_Maximuminterestpaymentdeferralperiod
Namespace Prefix: | wec_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum debt service ratio to be maintained for 12-months prior to distribution + References No definition available. + Details
Name: | wec_MinimumDebtServiceRatioToBeMaintainedFor12MonthsPriorToDistribution
Namespace Prefix: | wec_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of net income for which dividends can be declared if certain common stock equity to total capitalization ratios are not maintained. + References No definition available. + Details
Name: | wec_Percentageofnetincomeforwhichdividendscanbedeclared
Namespace Prefix: | wec_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Period needed to maintain minimum debt service coverage ratio + References No definition available. + Details
Name: | wec_PeriodNeededToMaintainMinimumDebtServiceCoverageRatio
Namespace Prefix: | wec_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period for which dividends are restricted if criteria is not met. + References No definition available. + Details
Name: | wec_PeriodOfDividendRestrictions
Namespace Prefix: | wec_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition [Line Items] for Schedule itemizing dividend payment restrictions imposed by regulatory authorities. + References No definition available. + Details
Name: | wec_ScheduleofDividendPaymentRestrictionsLineItems
Namespace Prefix: | wec_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=wec_WisconsinElectricPowerCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=wec_SerialPreferredStock360SeriesRedeemableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | wec_RestrictionsAxis=wec_Commonstockequitytototalcapitalizationislessthan25Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | wec_RestrictionsAxis=wec_Commonstockequitytototalcapitalizationislessthan20Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAgencyAxis=wec_PublicServiceCommissionofWisconsinMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=wec_WisconsinPublicServiceCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=wec_WisconsinGasLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=wec_UpperMichiganEnergyResourcesCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=wec_BluewaterGasStorageLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=wec_ATCHoldingLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=wec_WECIWindHoldingIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |