XML 142 R113.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Condensed Notes to the Financial Statements (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Money Pool [Abstract] |  |  |  |  |
Guarantor Obligations, Maximum Exposure, Undiscounted |  | $ 75 | $ 75 | $ 62 |
Schedule of Guarantor Obligations |  |  | Guarantees and bond indemnities issued and outstanding as of Dec. 31, 2023:
(Millions of Dollars) |  | Guarantor |  | Guarantee Amount |  | Current Exposure |  | Triggering Event
Guarantees of Capital Services purchase contracts for wind and solar generating equipment (a) |  | Xcel Energy Inc. |  | 951 |  |  | (b) |  | (c)
Guarantees of Xcel Energy Inc.’s utility subsidiaries’ performance on tax credit sale agreements |  | Xcel Energy Inc. |  | 100 |  |  | (d) |  | (c)
Guarantee performance and payment of surety bonds for Xcel Energy Inc.’s utility subsidiaries (e) |  | Xcel Energy Inc. |  | 75 |  |  | (f) |  | (g)
(a)Guarantees expire upon the satisfaction of all buyer obligations under the purchase contracts. (b)Given that the manufacturing of equipment has not yet commenced, related exposure to the performance obligations of Capital Services at Dec. 31, 2023 has been assessed as immaterial. (c)Nonperformance and/or nonpayment. (d)Exposure to the performance obligations of the utility subsidiaries has been assessed as immaterial. The tax credit sales transactions closed as scheduled in January 2024. (e)The surety bonds primarily relate to workers compensation benefits and utility projects. The workers compensation bonds are renewed annually and the project based bonds expire in conjunction with the completion of the related projects. (f)Due to the number of projects associated with the surety bonds, the total current exposure of this indemnification cannot be determined. Xcel Energy Inc. believes the exposure to be significantly less than the total amount of the outstanding bonds. (g)Per the indemnity agreement between Xcel Energy Inc. and the various surety companies, surety companies have the discretion to demand that collateral be posted. |  |
Payment or Performance Guarantee | Guarantee of Capital Services purchase contract for solar generating equipment |  |  |  |  |
Money Pool [Abstract] |  |  |  |  |
Guarantor Obligations, Maximum Exposure, Undiscounted | [1],[2],[3] | 951 | $ 951 |  |
Payment or Performance Guarantee | Guarantees of Xcel Energy Inc.'s utility subsidiaries' performance on tax credit sale agreements |  |  |  |  |
Money Pool [Abstract] |  |  |  |  |
Guarantor Obligations, Maximum Exposure, Undiscounted | [3],[4] | 100 | 100 |  |
Payment or Performance Guarantee | Surety Bonds |  |  |  |  |
Money Pool [Abstract] |  |  |  |  |
Guarantor Obligations, Maximum Exposure, Undiscounted | [5],[6],[7] | 75 | 75 |  |
Xcel Energy Inc. |  |  |  |  |
Dividends [Abstract] |  |  |  |  |
Cash dividends paid to Xcel Energy by subsidiaries |  |  | 1,693 | 1,503 | $ 1,344
Money Pool [Abstract] |  |  |  |  |
Loan outstanding at period end |  | 21 | 21 | 0 | 0
Average loan outstanding |  | 90 | 27 | 10 | 16
Maximum loan outstanding |  | $ 250 | $ 250 | $ 204 | $ 439
Weighted average interest rate, computed on a daily basis (percentage) |  | 1.34% | 5.33% | 0.73% | 0.08%
Line of Credit Facility, Interest Rate at Period End |  | 5.34% | 5.34% |  |
Interest Income, Other |  | $ 1 | $ 1 | $ 0 | $ 0
Weighted average interest rate at period end (percentage) |  | 5.34% | 5.34% |  |
Other Receivable, after Allowance for Credit Loss, Current, Related and Nonrelated Party Status [Extensible Enumeration] |  | $ 403 | $ 403 | 443 |
Xcel Energy Inc. | NSP Minnesota |  |  |  |  |
Money Pool [Abstract] |  |  |  |  |
Other Receivable, after Allowance for Credit Loss, Current, Related and Nonrelated Party Status [Extensible Enumeration] |  | 120 | 120 | 82 |
Xcel Energy Inc. | NSP-Wisconsin |  |  |  |  |
Money Pool [Abstract] |  |  |  |  |
Other Receivable, after Allowance for Credit Loss, Current, Related and Nonrelated Party Status [Extensible Enumeration] |  | 13 | 13 | 17 |
Xcel Energy Inc. | PSCo |  |  |  |  |
Money Pool [Abstract] |  |  |  |  |
Other Receivable, after Allowance for Credit Loss, Current, Related and Nonrelated Party Status [Extensible Enumeration] |  | 44 | 44 | 111 |
Xcel Energy Inc. | SPS |  |  |  |  |
Money Pool [Abstract] |  |  |  |  |
Other Receivable, after Allowance for Credit Loss, Current, Related and Nonrelated Party Status [Extensible Enumeration] |  | 47 | 47 | 61 |
Xcel Energy Inc. | Xcel Energy Services Inc. |  |  |  |  |
Money Pool [Abstract] |  |  |  |  |
Other Receivable, after Allowance for Credit Loss, Current, Related and Nonrelated Party Status [Extensible Enumeration] |  | 144 | 144 | 145 |
Xcel Energy Inc. | Other Subsidiaries |  |  |  |  |
Money Pool [Abstract] |  |  |  |  |
Other Receivable, after Allowance for Credit Loss, Current, Related and Nonrelated Party Status [Extensible Enumeration] |  | $ 35 | $ 35 | $ 27 |
[1] | Given that the manufacturing of equipment has not yet commenced, related exposure to the performance obligations of Capital Services at Dec. 31, 2023 has been assessed as immaterial.
[2] | Guarantees expire upon the satisfaction of all buyer obligations under the purchase contracts.
[3] | Nonperformance and/or nonpayment.
[4] | Exposure to the performance obligations of the utility subsidiaries has been assessed as immaterial. The tax credit sales transactions closed as scheduled in January 2024.
[5] | Per the indemnity agreement between Xcel Energy Inc. and the various surety companies, surety companies have the discretion to demand that collateral be posted.
[6] | The surety bonds primarily relate to workers compensation benefits and utility projects. The workers compensation bonds are renewed annually and the project based bonds expire in conjunction with the completion of the related projects.
[7] | Due to the number of projects associated with the surety bonds, the total current exposure of this indemnification cannot be determined. Xcel Energy Inc. believes the exposure to be significantly less than the total amount of the outstanding bonds.

X
- Definition This element represents disclosure of the aggregate cash dividends paid to the entity by consolidated subsidiaries. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-3 + Details
Name: | us-gaap_CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-4 + Details
Name: | us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of interest income earned from interest bearing assets classified as other. + References No definition available. + Details
Name: | us-gaap_InterestIncomeOther
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The effective interest rate at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The effective interest rate during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_LineOfCreditFacilityInterestRateDuringPeriod
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount due from parties in nontrade transactions, classified as other. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(5)(a)(5)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(a)(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_OtherReceivables
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Tabular disclosure of each guarantee obligation, or each group of similar guarantee obligations, including (a) the nature of the guarantee, including its term, how it arose, and the events or circumstances that would require the guarantor to perform under the guarantee; (b) the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee; (c) the current carrying amount of the liability, if any, for the guarantor's obligations under the guarantee; and (d) the nature of any recourse provisions under the guarantee, and any assets held either as collateral or by third parties, and any relevant related party disclosure. Excludes disclosures about product warranties. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-4 + Details
Name: | us-gaap_ScheduleOfGuaranteeObligationsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Weighted average interest rate of short-term debt outstanding calculated at point in time. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_ShortTermDebtWeightedAverageInterestRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Investments in the utility money pool borrowing arrangement among approved affiliates, which are due within 1 year (or 1 business cycle). + References No definition available. + Details
Name: | xel_InvestmentsReceivableInUtilityMoneyPoolArrangement
Namespace Prefix: | xel_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Average investments during the period in the utility money pool borrowing arrangement among approved affiliates, which are due within 1 year (or 1 business cycle). + References No definition available. + Details
Name: | xel_UtilityMoneyPoolArrangementAverageLoanOutstanding
Namespace Prefix: | xel_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Maximum investments at any time during the period in the utility money pool borrowing arrangement among approved affiliates, which are due within 1 year (or 1 business cycle). + References No definition available. + Details
Name: | xel_UtilityMoneyPoolArrangementMaximumLoanOutstanding
Namespace Prefix: | xel_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_PerformanceGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_UnderlyingAssetClassAxis=xel_GuaranteeOfCapitalServicesPurchaseContractForSolarGeneratingEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_UnderlyingAssetClassAxis=xel_GuaranteesOfXcelEnergyInc.sUtilitySubsidiariesPerformanceOnTaxCreditSaleAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_UnderlyingAssetClassAxis=xel_SuretyBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=xel_NspMinnesotaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=xel_NSPWisconsinMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=xel_PscoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=xel_SpsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=xel_XcelEnergyServicesIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |