Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2017

Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

Schedule II

Valuation and Qualifying Accounts

For the Years Ended December 31, 2017, 2016 and 2015

				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):
		2017	$83	$64		$—	$77	$70
		2016	$96	$63		$—	$76	$83
		2015	$106	$77		$—	$87	$96
CECONY	Allowance for uncollectible accounts (a):
		2017	$78	$60		$—	$73	$65
		2016	$91	$57		$—	$70	$78
		2015	$98	$69		$—	$76	$91

(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.