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Other Equity Awards (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Equity Instruments Other than Options Activity [Roll Forward] |  |  |
Balance at January 1 (in shares) | 708 |  |
Granted (in shares) | 586 | 395 | 421
Forfeited (in shares) | (184) |  |
Vested (in shares) | (329) | (319) | (392)
Dividend equivalents (in shares) | 38 |  |
Balance at December 31 (in shares) | 819 | 708 |
Equity Instruments Other than Options, Weighted Average Grant Date Fair Value [Abstract] |  |  |
Balance at January 1, weighted average grant date fair value (in dollars per share) | $ 67.35 |  |
Granted, weighted average grant date fair value (in dollars per share) | 67.06 | $ 68.43 | $ 66.03
Forfeited, weighted average grant date fair value (in dollars per share) | 68.42 |  |
Vested, weighted average grant date fair value (in dollars per share) | 66.23 |  |
Dividend equivalents, weighted average grant date fair value (in dollars per share) | 67.65 |  |
Balance at December 31, weighted average grant date fair value (in dollars per share) | $ 67.36 | $ 67.35 |
Equity Instruments Other than Options, Additional Disclosures [Abstract] |  |  |
Total fair value of equity awards vested during the period | $ 20 | $ 22 | $ 27
Performance-based awards [Member] |  |  |
Equity Instruments Other than Options, Additional Disclosures [Abstract] |  |  |
Award Vesting Period (in years) | 3 years |  |
Service-based awards [Member] |  |  |
Equity Instruments Other than Options Activity [Roll Forward] |  |  |
Granted (in shares) | 400 | 200 | 200
Xcel Energy Inc. 2015 Omnibus Incentive Plan [Member] | Service-based awards [Member] |  |  |
Equity Instruments Other than Options Activity [Roll Forward] |  |  |
Granted (in shares) | 7,000 |  |
Equity Award Granted Between 2015 and 2018 | Performance-based awards [Member] | Minimum |  |  |
Equity Instruments Other than Options, Additional Disclosures [Abstract] |  |  |
Percentage payout for performance-based equity awards | 0.00% |  |
Equity Award Granted Between 2015 and 2018 | Performance-based awards [Member] | Maximum |  |  |
Equity Instruments Other than Options, Additional Disclosures [Abstract] |  |  |
Percentage payout for performance-based equity awards | 200.00% |  |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(02) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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