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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts | Schedule II Valuation and Qualifying Accounts For the Years Ended December 31, 2019, 2018 and 2017
|  |  |  |  | COLUMN C Additions |  |  |  |
Company (Millions of Dollars) | COLUMN A Description |  |  |  | COLUMN B Balance at Beginning of Period |  | (1) Charged To Costs And Expenses |  | (2) Charged To Other Accounts |  |  | COLUMN D Deductions (b) |  | COLUMN E Balance At End of Period
Con Edison | Allowance for uncollectible accounts (a): |  |  |  |  |  |  |  |  |  |  |  |
|  |  | 2019 |  | $68 |  | $77 |  |  | $— |  |  | $(71) |  | $74
|  |  | 2018 |  | $70 |  | $62 |  |  | $— |  |  | $(64) |  | $68
|  |  | 2017 |  | $83 |  | $64 |  |  | $— |  |  | $(77) |  | $70
CECONY | Allowance for uncollectible accounts (a): |  |  |  |  |  |  |  |  |  |  |  |
|  |  | 2019 |  | $61 |  | $72 |  |  | $— |  |  | $(65) |  | $68
|  |  | 2018 |  | $65 |  | $56 |  |  | $— |  |  | $(60) |  | $61
|  |  | 2017 |  | $78 |  | $60 |  |  | $— |  |  | $(73) |  | $65
(a) | This is a valuation account deducted in the balance sheet from the assets (Accounts receivable - customers and Other receivables) to which they apply.
(b) Accounts written off less cash collections, miscellaneous adjustments and amounts reinstated as receivables previously written off.

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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 http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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