Regulatory Matters (Tables)

9 Months Ended

Sep. 30, 2011

Regulatory Matters [Abstract]

Regulatory Assets And Liabilities

	Con Edison				CECONY
(Millions of Dollars)	2011		2010		2011		2010
Regulatory assets
Unrecognized pension and other postretirement costs	$	3,769	$	4,371	$	3,584	$	4,152
Future federal income tax		1,763		1,593		1,688		1,515
Environmental remediation costs		681		695		563		574
Pension and other post retirement benefits deferrals		198		138		156		90
Revenue taxes		160		145		155		140
Surcharge for New York State assessment		150		121		138		112
Net electric deferrals		126		156		126		156
Deferred storm costs		81		57		61		43
O&R transition bond charges		45		48		—		—
Deferred derivative losses – long-term		34		74		21		48
Workers' compensation		25		31		24		31
Accrued unbilled revenues		22		—		22		—
Property tax reconciliation		12		34		—		27
World Trade Center restoration costs		9		45		9		45
Recoverable energy cost		2		42		2		42
Other		129		133		119		122
Regulatory assets – long-term		7,206		7,683		6,668		7,097
Deferred derivative losses – current		110		190		90		151
Recoverable energy costs – current		—		13		—		—
Regulatory assets – current		110		203		90		151
Total Regulatory Assets	$	7,316	$	7,886	$	6,758	$	7,248
Regulatory liabilities
Allowance for cost of removal less salvage	$	440	$	422	$	365	$	350
World Trade Center settlement proceeds		62		—		62		—
Carrying charges on transmission and distribution net plant		39		28		12		5
Bonus depreciation		24		1		23		1
Energy efficiency programs		23		12		21		11
Gas line losses		21		—		21		—
New York State tax refund		20		30		20		30
Gain on sale of properties		14		28		14		28
Expenditure prudence proceeding		11		—		11		—
Other		167		131		157		122
Regulatory liabilities – long-term		821		652		706		547
Net unbilled revenue deferrals – current		116		136		115		135
Revenue decoupling mechanism		99		38		99		38
Refundable energy cost – current		38		117		13		91
Deferred derivative gains – current		4		4		3		3
Regulatory liabilities – current		257		295		230		267
Total Regulatory Liabilities	$	1,078	$	947	$	936	$	814