Environmental Matters (Tables)

6 Months Ended

Jun. 30, 2013

Environmental Remediation Obligations [Abstract]

Accrued Liabilities and Regulatory Assets

The accrued liabilities and regulatory assets related to Superfund Sites at June 30, 2013 and December 31, 2012 were as follows:

	Con Edison				CECONY
(Millions of Dollars)	2013		2012		2013		2012
Accrued Liabilities:
Manufactured gas plant sites		$447		$462		$339		$351
Other Superfund Sites		75		83		74		82
Total		$522		$545		$413		$433
Regulatory assets		$713		$730		$599		$615

Environmental Remediation Costs

Environmental remediation costs incurred and insurance recoveries received related to Superfund Sites for the three and six months ended June 30, 2013 and 2012 were as follows:

	For the Three Months Ended June 30,
	Con Edison				CECONY
(Millions of Dollars)	2013		2012		2013		2012
Remediation costs incurred		$14		$8		$13		$7
Insurance recoveries received		—		—		—		—

	For the Six Months Ended June 30,
	Con Edison				CECONY
(Millions of Dollars)	2013		2012		2013		2012
Remediation costs incurred		$24		$15		$20		$14
Insurance recoveries received		—		—		—		—

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 June 30, 2013 and December 31, 2012 were as follows:

	Con Edison				CECONY
(Millions of Dollars)	2013		2012		2013		2012
Accrued liability – asbestos suits		$10		$10		$10		$10
Regulatory assets – asbestos suits		$10		$10		$10		$10
Accrued liability – workers’ compensation		$93		$94		$88		$89
Regulatory assets – workers’ compensation		$18		$19		$18		$19