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Valuation and Qualifying Accounts (Tables) | 12 Months Ended
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Dec. 31, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule of Valuation and Qualifying Accounts Disclosure | NISOURCE INC. SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS
Twelve months ended December 31, 2022
|  |  | Additions |  |  |  |  |
($ in millions) | Balance Jan. 1, 2022 |  | Charged to Costs and Expenses |  | Charged to Other Account (1) |  |  | Deductions for Purposes for which Reserves were Created |  | Balance Dec. 31, 2022
Reserves Deducted in Consolidated Balance Sheet from Assets to Which They Apply: |  |  |  |  |  |  |  |  |  |
Reserve for accounts receivable | $ | 23.5 |  |  | $ | 20.6 |  |  | $ | 36.4 |  |  |  | $ | 56.6 |  |  | $ | 23.9 |
Reserve for deferred charges and other | 2.3 |  |  | — |  |  | (1.3) |  |  |  | — |  |  | 1.0 |
Twelve months ended December 31, 2021
|  |  | Additions |  |  |  |  |
($ in millions) | Balance Jan. 1, 2021 |  | Charged to Costs and Expenses |  | Charged to Other Account (1) |  |  | Deductions for Purposes for which Reserves were Created |  | Balance Dec. 31, 2021
Reserves Deducted in Consolidated Balance Sheet from Assets to Which They Apply: |  |  |  |  |  |  |  |  |  |
Reserve for accounts receivable | $ | 52.3 |  |  | $ | 18.3 |  |  | $ | 6.4 |  |  |  | $ | 53.5 |  |  | $ | 23.5 |
Reserve for deferred charges and other | — |  |  | — |  |  | 2.3 |  |  |  | — |  |  | 2.3 |
Twelve months ended December 31, 2020
|  |  | Additions |  |  |  |  |
($ in millions) | Balance Jan. 1, 2020 |  | Charged to Costs and Expenses |  | Charged to Other Account (1) |  |  | Deductions for Purposes for which Reserves were Created |  | Balance Dec. 31, 2020
Reserves Deducted in Consolidated Balance Sheet from Assets to Which They Apply: |  |  |  |  |  |  |  |  |  |
Reserve for accounts receivable | $ | 19.2 |  |  | $ | 31.6 |  |  | $ | 33.0 |  |  |  | $ | 31.5 |  |  | $ | 52.3 |
Reserve for other investments | 3.0 |  |  | — |  |  | — |  |  |  | 3.0 |  |  | — |
(1) Charged to Other Accounts reflects the deferral of bad debt expense to a regulatory asset or the movement of the reserve between short term and long term.

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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 -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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