Current Expected Credit Losses (Tables)

12 Months Ended

Dec. 31, 2021

Credit Loss [Abstract]

Rollforward of Allowance for Credit Losses

The table below presents a rollforward by major portfolio segment type for the years ended December 31, 2021 and 2020:

	For the Year Ended December 31,
	Con Edison				CECONY
	Accounts receivable - customers		Other receivables		Accounts receivable - customers		Other receivables
(Millions of Dollars)	2021	2020	2021	2020	2021	2020	2021	2020
Allowance for credit losses
Beginning Balance at January 1,	$148	$70	$7	$4	$138	$65	$4	$3
Recoveries	14	8	1	—	12	6	1	—
Write-offs	(91)	(54)	(2)	(2)	(86)	(50)	(1)	(1)
Reserve adjustments	246	124	16	5	240	117	15	2
Ending Balance December 31,	$317	$148	$22	$7	$304	$138	$19	$4