Regulatory Matters (Tables)

3 Months Ended

Mar. 31, 2012

Regulatory Matters [Abstract]

Regulatory Assets And Liabilities

	Con Edison				CECONY
(Millions of Dollars)	2012		2011		2012		2011
Regulatory assets
Unrecognized pension and other postretirement costs	$	5,594	$	5,852	$	5,337	$	5,554
Future income tax		1,840		1,798		1,764		1,724
Environmental remediation costs		729		681		613		564
Pension and other post retirement benefits deferrals		219		198		185		157
Revenue taxes		167		163		161		158
Surcharge for New York State assessment		143		90		133		82
Deferred storm costs		125		128		79		80
Net electric deferrals		116		121		116		121
Deferred derivative losses – long-term		78		60		61		44
O&R transition bond charges		43		44		—		—
Preferred stock redemption		30		—		30		—
Workers' compensation		22		23		21		23
Property tax reconciliation		13		13		—		—
Recoverable energy costs – long-term		—		14		—		14
Other		157		152		145		140
Regulatory assets – long-term		9,276		9,337		8,645		8,661
Deferred derivative losses – current		192		164		159		140
Regulatory assets – current		192		164		159		140
Total Regulatory Assets	$	9,468	$	9,501	$	8,804	$	8,801
Regulatory liabilities
Allowance for cost of removal less salvage	$	457	$	448	$	379	$	372
Property tax reconciliation		68		35		68		35
World Trade Center settlement proceeds		62		62		62		62
Net unbilled revenue deferrals		51		104		51		104
Long-term interest rate reconciliation		42		30		42		30
Carrying charges on transmission and distribution net plant		41		38		18		14
Gas line losses		17		21		17		21
Expenditure prudence proceeding		8		11		8		11
Energy efficiency programs		6		22		6		20
Other		94		206		79		192
Regulatory liabilities – long-term		846		977		730		861
Electric surcharge offset		134		—		134		—
Refundable energy costs – current		99		51		55		12
Revenue decoupling mechanism		51		66		51		66
Deferred derivative gains – current		2		1		2		1
Regulatory liabilities – current		286		118		242		79
Total Regulatory Liabilities	$	1,132	$	1,095	$	972	$	940