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v3.21.1

Current Expected Credit Losses (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Increase in allowance for uncollectible accounts resulting from COVID-19 pandemic | $ 33 |
Accounts receivable - customers |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |
Beginning Balance at January 1, | 148 | $ 70
Recoveries | 3 | 2
Write-offs | (21) | (18)
Reserve adjustments | 51 | 21
Ending Balance March 31, | 181 | 75
Other receivables |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |
Beginning Balance at January 1, | 7 | 4
Recoveries | 0 | 0
Write-offs | (1) | 0
Reserve adjustments | 1 | 1
Ending Balance March 31, | 7 | 5
CECONY |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Increase in allowance for uncollectible accounts resulting from COVID-19 pandemic |  | 5
CECONY | Accounts receivable - customers |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |
Beginning Balance at January 1, | 138 | 65
Recoveries | 3 | 2
Write-offs | (20) | (18)
Reserve adjustments | 50 | 21
Ending Balance March 31, | 171 | 70
CECONY | Other receivables |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |
Beginning Balance at January 1, | 4 | 3
Recoveries | 0 | 0
Write-offs | 0 | 0
Reserve adjustments | 1 | 0
Ending Balance March 31, | $ 5 | $ 3

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