Environmental Matters (Tables)

3 Months Ended

Mar. 31, 2014

Environmental Remediation Obligations [Abstract]

Accrued Liabilities and Regulatory Assets

The accrued liabilities and regulatory assets related to Superfund Sites at March 31, 2014 and December 31, 2013 were as follows:

	Con Edison				CECONY
(Millions of Dollars)	2014		2013		2014		2013
Accrued Liabilities:
Manufactured gas plant sites		$663		$665		$560		$562
Other Superfund Sites		78		84		77		82
Total		$741		$749		$637		$644
Regulatory assets		$921		$938		$814		$830

Environmental Remediation Costs

Environmental remediation costs incurred and insurance recoveries received related to Superfund Sites for the three months ended March 31, 2014 and 2013 were as follows:

	Con Edison				CECONY
(Millions of Dollars)	2014		2013		2014		2013
Remediation costs incurred		$9		$10		$8		$7
Insurance recoveries received*		5		—		5		—
* Reduced amount deferred for recovery from customers

Accrued Liability for Asbestos Suits and Workers' Compensation Proceedings

The accrued liability for asbestos suits and workers’ compensation proceedings (including those related to asbestos exposure) and the amounts deferred as regulatory assets for the Companies at March 31, 2014 and December 31, 2013 were as follows:

	Con Edison				CECONY
(Millions of Dollars)	2014		2013		2014		2013
Accrued liability – asbestos suits	$	8	$	8	$	7	$	7
Regulatory assets – asbestos suits	$	8	$	8	$	7	$	7
Accrued liability – workers’ compensation	$	87	$	87	$	82	$	82
Regulatory assets – workers’ compensation	$	12	$	12	$	12	$	12