XML 57 R45.htm IDEA: XBRL DOCUMENT
v3.19.2

DERIVATIVE INSTRUMENTS (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Derivative assets and derivative liabilities | The following table shows our derivative assets and derivative liabilities:
|  | June 30, 2019 |  | December 31, 2018
(in millions) |  | Derivative Assets |  | Derivative Liabilities |  | Derivative Assets |  | Derivative Liabilities
Other current |  |  |  |  |  |  |  |
Natural gas contracts |  | $ | 4.6 |  |  | $ | 22.5 |  |  | $ | 7.7 |  |  | $ | 5.3 |
FTRs |  | 10.4 |  |  | — |  |  | 7.4 |  |  | — |
Coal contracts |  | 0.5 |  |  | 0.1 |  |  | 0.2 |  |  | 0.1 |
Interest rate swaps |  | — |  |  | 1.9 |  |  | — |  |  | 0.4 |
Total other current * |  | $ | 15.5 |  |  | $ | 24.5 |  |  | $ | 15.3 |  |  | $ | 5.8 |
Other long-term |  |  |  |  |  |  |  |
Natural gas contracts |  | $ | — |  |  | $ | 1.8 |  |  | $ | 0.4 |  |  | $ | 0.2 |
Coal contracts |  | 0.3 |  |  | — |  |  | 0.2 |  |  | — |
Interest rate swaps |  | — |  |  | 4.8 |  |  | — |  |  | 1.9 |
Total other long-term * |  | $ | 0.3 |  |  | $ | 6.6 |  |  | $ | 0.6 |  |  | $ | 2.1 |
Total |  | $ | 15.8 |  |  | $ | 31.1 |  |  | $ | 15.9 |  |  | $ | 7.9 |
* On our balance sheets, we classify derivative assets and liabilities as other current or other long-term based on the maturities of the underlying contracts.
Estimated notional sales volumes and realized gain (losses) | Our estimated notional sales volumes and realized gains (losses) were as follows:
|  | Three Months Ended June 30, 2019 |  | Three Months Ended June 30, 2018
(in millions) |  | Volumes |  | Gains (Losses) |  | Volumes |  | Gains (Losses)
Natural gas contracts |  | 43.8 Dth |  | $ | (3.1 | ) |  | 39.9 Dth |  | $ | (2.3 | )
Petroleum products contracts |  | — gallons |  | — |  |  | 1.7 gallons |  | 0.3 |
FTRs |  | 8.0 MWh |  | 3.0 |  |  | 6.8 MWh |  | 3.9 |
Total |  |  |  | $ | (0.1 | ) |  |  |  | $ | 1.9 |
|  | Six Months Ended June 30, 2019 |  | Six Months Ended June 30, 2018
(in millions) |  | Volumes |  | Gains (Losses) |  | Volumes |  | Gains (Losses)
Natural gas contracts |  | 99.9 Dth |  | $ | (3.6 | ) |  | 88.0 Dth |  | $ | (7.5 | )
Petroleum products contracts |  | — gallons |  | — |  |  | 3.8 gallons |  | 0.8 |
FTRs |  | 16.1 MWh |  | 5.3 |  |  | 15.0 MWh |  | 7.6 |
Total |  |  |  | $ | 1.7 |  |  |  |  | $ | 0.9 |
Offsetting assets and liabilities | The following table shows derivative assets and derivative liabilities if derivative instruments by counterparty were presented net on our balance sheets:
|  | June 30, 2019 |  | December 31, 2018
(in millions) |  | Derivative Assets |  | Derivative Liabilities |  | Derivative Assets |  | Derivative Liabilities
Gross amount recognized on the balance sheet |  | $ | 15.8 |  |  | $ | 31.1 |  |  | $ | 15.9 |  |  | $ | 7.9 |  |
Gross amount not offset on the balance sheet |  | (3.0 | ) |  | (24.2 | ) | (1) | (4.0 | ) | (2) | (4.9 | ) | (3)
Net amount |  | $ | 12.8 |  |  | $ | 6.9 |  |  | $ | 11.9 |  |  | $ | 3.0 |  |
(1) | Includes cash collateral posted of $21.2 million.
(2) | Includes cash collateral received of $0.2 million.
(3) | Includes cash collateral posted of $1.1 million.
Amounts related to cash flow hedges recorded in other comprehensive loss and earnings | The table below shows the amounts related to these cash flow hedges recorded in other comprehensive loss and in earnings, along with our total interest expense on the income statements:
|  | Three Months Ended June 30 |  | Six Months Ended June 30
(in millions) |  | 2019 |  | 2018 |  | 2019 |  | 2018
Derivative losses recognized in other comprehensive loss |  | $ | (3.2 | ) |  | $ | — |  |  | $ | (4.8 | ) |  | $ | — |
Net derivative gains reclassified from accumulated other comprehensive loss to interest expense |  | 0.4 |  |  | 0.5 |  |  | 0.8 |  |  | 1.1 |
Total interest expense line item on the income statements |  | 124.1 |  |  | 108.5 |  |  | 248.5 |  |  | 215.2 |

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of gain (loss) on derivative and nonderivative instruments designated and qualifying as cash flow hedge recorded in accumulated other comprehensive income (AOCI) and reclassified into earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
Name: | us-gaap_ScheduleOfCashFlowHedgesIncludedInAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amount of the realized gain (loss) and notional volumes for derivative instruments not designated as hedging instruments. + References No definition available. + Details
Name: | wec_DerivativeInstrumentsRealizedGainLossandNotionalVolumesTableTextBlock
Namespace Prefix: | wec_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Offsetting Assets and Liabilities [Table Text Block] + References No definition available. + Details
Name: | wec_OffsettingAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | wec_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration