XML 54 R39.htm IDEA: XBRL DOCUMENT v3.21.1
Current Expected Credit Losses (Tables)
3 Months Ended
Mar. 31, 2021
Credit Loss [Abstract]  
Rollforward of Allowance for Credit Losses The table below presents a rollforward by major portfolio segment type for the three months ended March 31, 2021 and 2020:
For the Three Months Ended March 31,
Con EdisonCECONY
Accounts receivable - customersOther receivablesAccounts receivable - customersOther receivables
(Millions of Dollars)20212020202120202021202020212020
Allowance for credit losses
Beginning Balance at January 1, $148$70$7$4$138$65$4$3
Recoveries32— — 32— — 
Write-offs(21)(18)(1)— (20)(18)— — 
Reserve adjustments51211150211— 
Ending Balance March 31,$181$75$7$5$171$70$5$3