XML 59 R49.htm IDEA: XBRL DOCUMENT
v3.22.2

Consideration of Credit Risk and Concentrations (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 USD ($) Counterparty | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) Counterparty | Jun. 30, 2021 USD ($)
Impact of Derivative Activity [Abstract] |  |  |  |  |
Fair value hedges |  | $ 0 | $ 0 | $ 0 | $ 0
Other Derivative Instruments |  |  |  |  |
Impact of Derivative Activity [Abstract] |  |  |  |  |
Pre-tax fair value gains (losses) recognized during the period in accumulated other comprehensive loss |  | 0 | 0 | 0 | 0
Pre-tax fair value gains (losses) recognized during the period in regulatory (assets) and liabilities |  | 97,000,000 | 10,000,000 | 103,000,000 | 13,000,000
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | 0 | 0 | 0 | 0
Pre-tax (gains) losses reclassified into income during the period from regulatory assets and (liabilities) |  | (26,000,000) | 3,000,000 | (32,000,000) | (15,000,000)
Pre-tax gains (losses) recognized during the period in income |  | 7,000,000 | 12,000,000 | (8,000,000) | 38,000,000
Other Derivative Instruments | Electric Commodity |  |  |  |  |
Impact of Derivative Activity [Abstract] |  |  |  |  |
Pre-tax fair value gains (losses) recognized during the period in accumulated other comprehensive loss |  | 0 | 0 | 0 | 0
Pre-tax fair value gains (losses) recognized during the period in regulatory (assets) and liabilities |  | 98,000,000 | 11,000,000 | 100,000,000 | 13,000,000
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | 0 | 0 | 0 | 0
Pre-tax (gains) losses reclassified into income during the period from regulatory assets and (liabilities) | [1] | (26,000,000) | 3,000,000 | (36,000,000) | (23,000,000)
Pre-tax gains (losses) recognized during the period in income |  | 0 | 0 | 0 | 0
Other Derivative Instruments | Natural Gas Commodity |  |  |  |  |
Impact of Derivative Activity [Abstract] |  |  |  |  |
Pre-tax fair value gains (losses) recognized during the period in accumulated other comprehensive loss |  | 0 | 0 | 0 |
Pre-tax fair value gains (losses) recognized during the period in regulatory (assets) and liabilities |  | (1,000,000) | (1,000,000) | 3,000,000 |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  |  |  | 0 | 0
Pre-tax (gains) losses reclassified into income during the period from regulatory assets and (liabilities) | [2] |  |  | 4,000,000 | 8,000,000
Pre-tax gains (losses) recognized during the period in income | [2],[3] |  |  | (17,000,000) | (10,000,000)
Other Derivative Instruments | Commodity Trading |  |  |  |  |
Impact of Derivative Activity [Abstract] |  |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | 0 | 0 | 0 | 0
Pre-tax (gains) losses reclassified into income during the period from regulatory assets and (liabilities) |  | 0 | 0 | 0 | 0
Pre-tax gains (losses) recognized during the period in income | [4] | 7,000,000 | 12,000,000 | 9,000,000 | 48,000,000
Designated as Hedging Instrument | Cash Flow Hedges |  |  |  |  |
Impact of Derivative Activity [Abstract] |  |  |  |  |
Pre-tax fair value gains (losses) recognized during the period in accumulated other comprehensive loss |  | 15,000,000 |  | 22,000,000 |
Pre-tax fair value gains (losses) recognized during the period in regulatory (assets) and liabilities |  | 0 |  | 0 |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | 1,000,000 | 2,000,000 | 3,000,000 | 6,000,000
Pre-tax (gains) losses reclassified into income during the period from regulatory assets and (liabilities) |  | 0 | 0 | 0 | 0
Pre-tax gains (losses) recognized during the period in income |  | 0 | 0 | 0 | 0
Designated as Hedging Instrument | Cash Flow Hedges | Interest Rate |  |  |  |  |
Impact of Derivative Activity [Abstract] |  |  |  |  |
Pre-tax fair value gains (losses) recognized during the period in accumulated other comprehensive loss |  | 15,000,000 |  | 22,000,000 |
Pre-tax fair value gains (losses) recognized during the period in regulatory (assets) and liabilities |  | 0 |  | 0 |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | [5] | 1,000,000 | 2,000,000 | 3,000,000 | 6,000,000
Pre-tax (gains) losses reclassified into income during the period from regulatory assets and (liabilities) |  | 0 | 0 | 0 | 0
Pre-tax gains (losses) recognized during the period in income |  | $ 0 | $ 0 | $ 0 | $ 0
Credit Concentration Risk |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of most significant counterparties for wholesale, trading and non-trading commodity activities with credit exposure | Counterparty |  | 10 |  | 10 |
Credit Concentration Risk | Municipal or Cooperative Entities or Other Utilities [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of most significant counterparties for wholesale, trading and non-trading commodity activities with credit exposure | Counterparty |  | 7 |  | 7 |
Credit Concentration Risk | External Credit Rating, Investment Grade [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of most significant counterparties for wholesale, trading and non-trading commodity activities with credit exposure | Counterparty |  | 5 |  | 5 |
Wholesale, trading and non-trading commodity credit exposure for the most significant counterparties |  | $ 71,000,000 |  | $ 71,000,000 |
Percentage of wholesale, trading and non-trading commodity credit exposure for the most significant counterparties (in hundredths) |  | 27.00% |  | 27.00% |
Credit Concentration Risk | Internal Investment Grade [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of most significant counterparties for wholesale, trading and non-trading commodity activities with credit exposure | Counterparty |  | 3 |  | 3 |
Wholesale, trading and non-trading commodity credit exposure for the most significant counterparties |  | $ 58,000,000 |  | $ 58,000,000 |
Percentage of wholesale, trading and non-trading commodity credit exposure for the most significant counterparties (in hundredths) |  | 22.00% |  | 22.00% |
Credit Concentration Risk | External Credit Rating, Non Investment Grade [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of most significant counterparties for wholesale, trading and non-trading commodity activities with credit exposure | Counterparty |  | 2 |  | 2 |
Wholesale, trading and non-trading commodity credit exposure for the most significant counterparties |  | $ 74,000,000 |  | $ 74,000,000 |
Percentage of wholesale, trading and non-trading commodity credit exposure for the most significant counterparties (in hundredths) |  | 28.00% |  | 28.00% |
[1] | Recorded to electric fuel and purchased power. These derivative settlement gains and losses are shared with electric customers through fuel and purchased energy cost-recovery mechanisms, and reclassified out of income as regulatory assets or liabilities, as appropriate. All FTR settlements are shared with customers and do not have a material impact on net income. Presented amounts reflect changes in fair value between auction and settlement dates, but exclude the original auction fair value.
[2] | Recorded to cost of natural gas sold and transported. These losses are subject to cost-recovery mechanisms and reclassified out of income to a regulatory asset, as appropriate.
[3] | Relates primarily to option premium amortization.
[4] | Recorded to electric operating revenues. Portions of these gains and losses are subject to sharing with electric customers through margin-sharing mechanisms and deducted from gross revenue, as appropriate.
[5] | Recorded to interest charges.

X
- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
Name: | us-gaap_DerivativeGainLossOnDerivativeNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624177-113959 Reference 2: 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=125515794&loc=SL5624171-113959 + Details
Name: | us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net fair value of all derivative instruments designated as fair value hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=117331979&loc=d3e41228-113958 + Details
Name: | us-gaap_FairValueHedgesAtFairValueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unrealized gain (loss) arising from the change in fair value of price risk derivatives designated as cash flow hedging instruments recorded in accumulated other comprehensive income in the period, before taxes, to the extent that the cash flow hedge is determined to be effective. + 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 (b) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 + Details
Name: | us-gaap_UnrealizedGainLossOnPriceRiskCashFlowDerivativesBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Derivative Instruments Gain (Loss) Reclassified To Regulatory Assets And Liabilities Net + References No definition available. + Details
Name: | xel_DerivativeInstrumentsGainLossReclassifiedToRegulatoryAssetsAndLiabilitiesNet
Namespace Prefix: | xel_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
Name: | xel_ImpactOfDerivativeActivityOnAccumulatedOtherComprehensiveLossRegulatoryAssetsAndLiabilitiesAndIncomeAbstract
Namespace Prefix: | xel_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of the entity's most significant counterparties for wholesale, trading and non-trading commodity activities with credit exposure. + References No definition available. + Details
Name: | xel_Numberofmostsignificantcounterpartiesforwholesaletradingandnontradingcommodityactivitieswithcreditexposure
Namespace Prefix: | xel_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of wholesale, trading and non-trading commodity credit exposure for the entity's most significant counterparties. + References No definition available. + Details
Name: | xel_PercentageOfWholesaleTradingAndNonTradingCommodityCreditExposureForMostSignificantCounterparties
Namespace Prefix: | xel_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Pre-tax gains (losses) reclassified into income during the period from regulatory assets and (liabilities) + References No definition available. + Details
Name: | xel_Pretaxgainslossesreclassifiedintoincomeduringtheperiodfromregulatoryassetsandliabilities
Namespace Prefix: | xel_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Wholesale, trading and non-trading commodity credit exposure for the entity's most significant counterparties. + References No definition available. + Details
Name: | xel_WholesaleTradingAndNonTradingCommodityCreditExposureForMostSignificantCounterparties
Namespace Prefix: | xel_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=xel_ElectricCommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=xel_NaturalGasCommodityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=xel_CommodityTradingContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CreditConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByIndustryOfCounterpartyTypeAxis=xel_MunicipalorCooperativeEntitiesorOtherUtilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | xel_CreditQualityIndicatorAxis=us-gaap_ExternalCreditRatingInvestmentGradeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | xel_CreditQualityIndicatorAxis=us-gaap_InternalInvestmentGradeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | xel_CreditQualityIndicatorAxis=us-gaap_ExternalCreditRatingNonInvestmentGradeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |