XML 59 R49.htm IDEA: XBRL DOCUMENT v3.23.1

Consideration of Credit Risk and Concentrations (Details)
$ in Millions

3 Months Ended

Mar. 31, 2023

USD ($)

Counterparty

Mar. 31, 2022

USD ($)

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

Pre-tax fair value gains (losses) recognized during the period in regulatory (assets) and liabilities

(89)

5

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)

91

(10)

Pre-tax gains (losses) recognized during the period in income

(20)

(15)

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

Pre-tax fair value gains (losses) recognized during the period in regulatory (assets) and liabilities

(92)

1

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)

^[1]

82

(13)

Pre-tax gains (losses) recognized during the period in income

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

Pre-tax fair value gains (losses) recognized during the period in regulatory (assets) and liabilities

3

4

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]

9

3

Pre-tax gains (losses) recognized during the period in income

^[2]

(19)

(17)

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

Pre-tax (gains) losses reclassified into income during the period from regulatory assets and (liabilities)

0

0

Pre-tax gains (losses) recognized during the period in income

^[3]

(1)

2

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

(7)

6

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

2

Pre-tax (gains) losses reclassified into income during the period from regulatory assets and (liabilities)

0

0

Pre-tax gains (losses) recognized during the period in income

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

(7)

6

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

^[4]

1

2

Pre-tax (gains) losses reclassified into income during the period from regulatory assets and (liabilities)

0

0

Pre-tax gains (losses) recognized during the period in income

$ 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

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

6

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

4

Wholesale, trading and non-trading commodity credit exposure for the most significant counterparties

$ 60

Percentage of wholesale, trading and non-trading commodity credit exposure for the most significant counterparties (in hundredths)

32.00%

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

Wholesale, trading and non-trading commodity credit exposure for the most significant counterparties

$ 54

Percentage of wholesale, trading and non-trading commodity credit exposure for the most significant counterparties (in hundredths)

28.00%

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

3

Wholesale, trading and non-trading commodity credit exposure for the most significant counterparties

$ 77

Percentage of wholesale, trading and non-trading commodity credit exposure for the most significant counterparties (in hundredths)

40.00%

[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. 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.(e)Relates primarily to option premium amortization.
[3]	Recorded to electric revenues. Presented amounts do not reflect non-derivative transactions or margin sharing with customers.
[4]	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 https://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 https://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 https://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

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 https://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: