Environmental Matters (Tables)

12 Months Ended

Dec. 31, 2015

Environmental Remediation Obligations [Abstract]

Accrued Liabilities and Regulatory Assets

The accrued liabilities and regulatory assets related to Superfund Sites at December 31, 2015 and 2014 were as follows:

	Con Edison		CECONY
(Millions of Dollars)	2015	2014	2015	2014
Accrued Liabilities:
Manufactured gas plant sites	$679	$684	$579	$587
Other Superfund Sites	86	80	86	79
Total	$765	$764	$665	$666
Regulatory assets	$904	$925	$800	$820

Environmental Remediation Costs

Environmental remediation costs incurred and insurance recoveries received related to Superfund Sites at December 31, 2015 and 2014 were as follows:

	Con Edison		CECONY
(Millions of Dollars)	2015	2014	2015	2014
Remediation costs incurred	$37	$29	$34	$20
Insurance recoveries received (a)	—	7	—	7

(a) 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 December 31, 2015 and 2014 were as follows:

	Con Edison		CECONY
(Millions of Dollars)	2015	2014	2015	2014
Accrued liability – asbestos suits	$8	$8	$7	$7
Regulatory assets – asbestos suits	$8	$8	$7	$7
Accrued liability – workers’ compensation	$86	$83	$81	$78
Regulatory assets – workers’ compensation	$11	$8	$11	$8