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Interest Rate Derivatives (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Other Current Assets |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Net |  | $ 534 | $ 123
Other Current Assets | Fair Value, Measured on a Recurring Basis |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 787 | 255
Netting | [1] | 258 | 135
Derivative Asset, Net |  | 529 | 120
Other Current Assets | Level 1 | Fair Value, Measured on a Recurring Basis |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 57 | 22
Other Current Assets | Level 2 | Fair Value, Measured on a Recurring Basis |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 242 | 155
Other Current Assets | Level 3 | Fair Value, Measured on a Recurring Basis |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 488 | 78
Other Noncurrent Assets |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Net |  | 105 | 67
Other Noncurrent Assets | Fair Value, Measured on a Recurring Basis |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 263 | 168
Netting | [1] | 163 | 107
Derivative Asset, Net |  | 100 | 61
Other Noncurrent Assets | Level 1 | Fair Value, Measured on a Recurring Basis |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 48 | 16
Other Noncurrent Assets | Level 2 | Fair Value, Measured on a Recurring Basis |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 121 | 63
Other Noncurrent Assets | Level 3 | Fair Value, Measured on a Recurring Basis |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 94 | 89
Interest rate derivatives |  |  |
Derivative [Line Items] |  |  |
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net |  | 4 |
Derivative Liability, Notional Amount |  | 0 |
Commodity Trading | Other Current Assets | Fair Value, Measured on a Recurring Basis | Other Derivative Instruments |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 350 | 180
Netting | [1] | 255 | 134
Derivative Asset, Net |  | 95 | 46
Commodity Trading | Other Current Assets | Level 1 | Fair Value, Measured on a Recurring Basis | Other Derivative Instruments |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 57 | 22
Commodity Trading | Other Current Assets | Level 2 | Fair Value, Measured on a Recurring Basis | Other Derivative Instruments |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 233 | 137
Commodity Trading | Other Current Assets | Level 3 | Fair Value, Measured on a Recurring Basis | Other Derivative Instruments |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 60 | 21
Commodity Trading | Other Noncurrent Assets | Fair Value, Measured on a Recurring Basis | Other Derivative Instruments |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 263 | 168
Netting | [1] | 163 | 107
Derivative Asset, Net |  | 100 | 61
Commodity Trading | Other Noncurrent Assets | Level 1 | Fair Value, Measured on a Recurring Basis | Other Derivative Instruments |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 48 | 16
Commodity Trading | Other Noncurrent Assets | Level 2 | Fair Value, Measured on a Recurring Basis | Other Derivative Instruments |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 121 | 63
Commodity Trading | Other Noncurrent Assets | Level 3 | Fair Value, Measured on a Recurring Basis | Other Derivative Instruments |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 94 | 89
Electric Commodity | Other Current Assets | Fair Value, Measured on a Recurring Basis | Other Derivative Instruments |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 428 | 57
Netting | [1] | 3 | 1
Derivative Asset, Net |  | 425 | 56
Electric Commodity | Other Current Assets | Level 1 | Fair Value, Measured on a Recurring Basis | Other Derivative Instruments |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 0 | 0
Electric Commodity | Other Current Assets | Level 2 | Fair Value, Measured on a Recurring Basis | Other Derivative Instruments |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | 0 | 0
Electric Commodity | Other Current Assets | Level 3 | Fair Value, Measured on a Recurring Basis | Other Derivative Instruments |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Gross |  | $ 428 | $ 57
[1] | Xcel Energy nets derivative instruments and related collateral on its consolidated balance sheets when supported by a legally enforceable master netting agreement, and all derivative instruments and related collateral amounts were subject to master netting agreements at June 30, 2022 and Dec. 31, 2021. At both June 30, 2022 and Dec. 31, 2021, derivative assets and liabilities include no obligations to return cash collateral. At June 30, 2022 and Dec. 31, 2021, derivative assets and liabilities include rights to reclaim cash collateral of $2 million and $30 million, respectively. Counterparty netting amounts presented exclude settlement receivables and payables and non-derivative amounts that may be subject to the same master netting agreements.(b)Amounts relate to FTR instruments administered by MISO and SPP (annual auctions occurring in the second quarter). These instruments are utilized/intended to offset the impacts of transmission system congestion. Higher congestion costs have led to an increase in the fair value of FTRs. Due to regulatory recovery, changes in fair value are deferred as a regulatory asset or liability and do not have a material impact on net income.

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