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Schedule II, Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2023
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II, Valuation and Qualifying Accounts | Xcel Energy Inc. and Subsidiaries Valuation and Qualifying Accounts Years Ended Dec. 31
|  | Allowance for bad debts |  | NOL and tax credit valuation allowances
(Millions of Dollars) |  | 2023 |  | 2022 |  | 2021 |  | 2023 |  | 2022 |  | 2021 |
Balance at Jan. 1 |  | $ | 122 |  |  | $ | 106 |  |  | $ | 79 |  |  | $ | 62 |  |  | $ | 64 |  |  | $ | 64 |  |
Additions charged to costs and expenses |  | 79 |  |  | 73 |  |  | 60 |  |  | 26 |  |  | 6 |  |  | 5 |  |
Additions charged to other accounts |  | 13 |  | (a) | 26 |  | (a) | 14 |  | (a) | — |  |  | — |  |  | — |  |
Deductions from reserves |  | (86) |  | (b) | (83) |  | (b) | (47) |  | (b) | (18) |  | (c) | (8) |  | (c) | (5) |  | (c)
Balance at Dec. 31 |  | $ | 128 |  |  | $ | 122 |  |  | $ | 106 |  |  | $ | 70 |  |  | $ | 62 |  |  | $ | 64 |  |
(a)Recovery of amounts previously written-off. (b)Deductions related primarily to bad debt write-offs. (c)Primarily reversals of valuation allowances on completed tax credit sales and reductions of valuation allowances for items forecasted to be used prior to expiration.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-4 + Details
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