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Subsequent Events (Details) - Collaborative Arrangement, Transaction with Party to Collaborative Arrangement - Xcel Energy Services Inc. - Subsequent Event customer in Millions	Oct. 28, 2022 customer term
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Agreement term	20 years
Number of agreement extensions | term	2
Agreement extension term	10 years
Electricity
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of customers	3.7
Natural Gas
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of customers	2.1

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- Definition

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- Definition

Collaborative Arrangement, Rights and Obligations, Agreement Term

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- Definition

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- Definition

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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.

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