Other Postretirement Benefits (Tables) (Other Postretirement Benefits [Member])

12 Months Ended

Dec. 31, 2012

Other Postretirement Benefits [Member]

Net Periodic Postretirement Benefit Costs

The components of the Companies’ net periodic postretirement benefit costs for 2012, 2011, and 2010 were as follows:

	Con Edison									CECONY
(Millions of Dollars)	2012			2011			2010			2012			2011			2010
Service cost	$	26		$	26		$	24		$	21		$	20		$	19
Interest cost on accumulated other postretirement benefit obligation		73			83			91			63			72			80
Expected return on plan assets		(85	)		(88	)		(86	)		(75	)		(78	)		(78	)
Recognition of net actuarial loss		98			88			92			87			80			85
Recognition of prior service cost		(21	)		(10	)		(12	)		(18	)		(11	)		(14	)
Recognition of transition obligation		2			4			3			2			4			3
NET PERIODIC POSTRETIREMENT BENEFIT COST	$	93		$	103		$	112		$	80		$	87		$	95
Cost capitalized		(32	)		(35	)		(39	)		(28	)		(29	)		(33	)
Reconciliation to rate level		20			14			4			16			13			1
Cost charged to operating expenses	$	81		$	82		$	77		$	68		$	71		$	63

Schedule of Funded Status

The funded status of the programs at December 31, 2012, 2011, and 2010 were as follows:

	Con Edison									CECONY
(Millions of Dollars)	2012			2011			2010			2012			2011			2010
CHANGE IN BENEFIT OBLIGATION
Benefit obligation at beginning of year	$	1,756		$	1,642		$	1,697		$	1,511		$	1,426		$	1,495
Service cost		26			25			24			21			20			19
Interest cost on accumulated postretirement benefit obligation		73			83			91			63			72			80
Amendments		(127	)		-			-			(89	)		-			-
Net actuarial loss/(gain)		(175	)		109			(68	)		(178	)		86			(77	)
Benefits paid and administrative expenses		(146	)		(144	)		(138	)		(134	)		(132	)		(126	)
Participant contributions		37			33			29			36			32			28
Medicare prescription subsidy		10			8			7			8			7			7
BENEFIT OBLIGATION AT END OF YEAR	$	1,454		$	1,756		$	1,642		$	1,238		$	1,511		$	1,426
CHANGE IN PLAN ASSETS
Fair value of plan assets at beginning of year	$	947		$	942		$	866		$	840		$	839		$	777
Actual return on plan assets		124			20			89			109			19			78
Employer contributions		83			84			96			71			74			85
Participant contributions		37			33			29			36			32			28
Benefits paid		(144	)		(132	)		(138	)		(134	)		(124	)		(129	)
FAIR VALUE OF PLAN ASSETS AT END OF YEAR	$	1,047		$	947		$	942		$	922		$	840		$	839
FUNDED STATUS	$	(407	)	$	(809	)	$	(700	)	$	(316	)	$	(671	)	$	(587	)
Unrecognized net loss	$	251		$	563		$	483		$	197		$	496		$	440
Unrecognized prior service costs		(105	)		(1	)		(10	)		(84	)		(15	)		(26	)
Unrecognized net transition liability at January 1, 1993		-			4			7			-			4			7

Schedule of Assumptions

The actuarial assumptions were as follows:

	2012			2011			2010
Weighted-average assumptions used to determine benefit obligations at December 31:
Discount Rate
CECONY		3.75	%		4.55	%		5.40	%
O&R		4.05	%		4.55	%		5.40	%
Weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31:
Discount Rate		4.55%			5.40%			5.95%
Expected Return on Plan Assets		8.50%			8.50%			8.50%

Schedule of Change of Assumed Health Care Cost Trend Rate

A one-percentage point change in the assumed health care cost trend rate would have the following effects at December 31, 2013:

	Con Edison					CECONY
	1-Percentage-Point
(Millions of Dollars)	Increase			Decrease		Increase			Decrease
Effect on accumulated other postretirement benefit obligation	$	(12	)	$	12	$	(31	)	$	27
Effect on service cost and interest cost components for 2012		-			-		(2	)		1

Schedule of Expected Benefit Payments

Based on current assumptions, the Companies expect to make the following benefit payments over the next ten years, net of receipt of governmental subsidies:

(Millions of Dollars)	2013		2014		2015		2016		2017		2018-2022
BENEFIT PAYMENTS
Con Edison	$	101	$	101	$	101	$	98	$	97	$	452
CECONY		91		90		89		87		86		389

Schedule of Plan Assets Allocations

The asset allocations for CECONY’s other postretirement benefit plans at the end of 2012, 2011, and 2010, and the target allocation for 2013 are as follows:

	Target Allocation Range			Plan Assets at December 31
Asset Category	2013			2012			2011			2010
Equity Securities		57	% - 73%		62	%		62	%		67%
Debt Securities		26	% - 44%		38	%		38	%		33%
Total		100	%		100	%		100	%		100%

Schedule of Fair Value of Plan Assets

The fair values of the plan assets at December 31, 2012 by asset category (see description of levels in Note E) are as follows:

(Millions of Dollars)	Level 1		Level 2		Level 3		Total
U.S. Equity(a)	$	127	$	184	$	-	$	311
International Equity(b)		-		124		-		124
Other Fixed Income(c)		-		229		-		229
Cash and Cash Equivalents(d)		-		23		-		23
Total investments	$	127	$	560	$	-	$	687
Funds for retiree health benefits(e)		185		137		31		353
Investments (including funds for retiree health benefits)	$	312	$	697	$	31	$	1,040
Pending activities(f)								7
Total fair value of plan net assets							$	1,047

(a) U.S. Equity includes both actively- and passively-managed assets with investments in domestic equity index funds and commingled funds.

(b) International Equity includes commingled international equity funds.

(c) Other Fixed Income includes commingled funds, which are valued at Net Asset Value.

(d) Cash and Cash Equivalents include short term investments and money markets.

(e) The Companies set aside funds for retiree health benefits through a separate account within the pension trust, as permitted under Section 401(h) of the Internal Revenue Code of 1986, as amended. In accordance with the Code, the plan’s investments in the 401(h) account may not be used for, or diverted to, any purpose other than providing health benefits for retirees. The net assets held in the 401(h) account are calculated based on a pro-rata percentage allocation of the net assets in the pension plan. The related obligations for health benefits are not included in the pension plan’s obligations and are included in the Companies’ other postretirement benefit obligation. See Note E.

(f) Pending activities include security purchases and sales that have not settled, interest and dividends that have not been received, and reflects adjustments for available estimates at year end.

The fair values of the plan assets at December 31, 2011 by asset category (see description of levels in Note E) are as follows:

(Millions of Dollars)	Level 1		Level 2		Level 3		Total
U.S. Equity(a)	$	115	$	162	$	-	$	277
International Equity(b)		-		104		-		104
Other Fixed Income(c)		-		207		-		207
Cash and Cash Equivalents(d)		-		18		-		18
Total investments	$	115	$	491	$	-	$	606
Funds for retiree health benefits(e)		174		134		28		336
Investments (including funds for retiree health benefits)	$	289	$	625	$	28	$	942
Pending activities(f)								5
Total fair value of plan net assets							$	947

(a) U.S. Equity includes both actively- and passively-managed assets with investments in domestic equity index funds and commingled funds.

(b) International Equity includes commingled international equity funds.

(c) Other Fixed Income includes commingled funds, which are valued at Net Asset Value.

(d) Cash and Cash Equivalents include short term investments and money markets.

(e) The Companies set aside funds for retiree health benefits through a separate account within the pension trust, as permitted under Section 401(h) of the Internal Revenue Code of 1986, as amended. In accordance with the Code, the plan’s investments in the 401(h) account may not be used for, or diverted to, any purpose other than providing health benefits for retirees. The net assets held in the 401(h) account are calculated based on a pro-rata percentage allocation of the net assets in the pension plan. The related obligations for health benefits are not included in the pension plan’s obligations and are included in the Companies’ other postretirement benefit obligation. See Note E.

(f) Pending activities include security purchases and sales that have not settled, interest and dividends that have not been received, and reflects adjustments for available estimates at year end.

Reconciliation of Fair Value Balances for Net Assets

The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2012 classified as Level 3 in the fair value hierarchy.

(Millions of Dollars)	Beginning Balance as of January 1, 2012		Assets Still Held at Reporting Date – Unrealized Gains/(Losses)		Assets Sold During the Period – Realized (Losses)		Purchases Sales and Settlements		Transfers Out of Level 3			Ending Balance as of December 31, 2012
Other Fixed Income	$	-	$	-	$	-	$	-	$	-		$	-
Insurance Contracts		-				-		-		-			-
Total investments	$	-	$	-	$	-	$	-	$	-		$	-
Funds for retiree health benefits		28		2		-		4		(3	)		31
Investments (including funds for retiree health benefits)	$	28	$	2	$	-	$	4	$	(3	)	$	31

The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2011 classified as Level 3 in the fair value hierarchy.

(Millions of Dollars)	Beginning Balance as of January 1, 2011		Assets Still Held at Reporting Date —  Unrealized Gains/(Losses)			Assets Sold During the Period — Realized (Losses)			Purchases Sales and Settlements		Transfers Out of Level 3			Ending Balance as of December 31, 2011
Other Fixed Income	$	189	$	-		$	-		$	-	$	(189	)	$	-
Insurance Contracts		-		-			-			-		-			-
Total investments	$	189	$	-		$	-		$	-	$	(189	)	$	-
Funds for retiree health benefits		30		(3	)		(1	)		2		-			28
Investments (including funds for retiree health benefits)	$	219	$	(3	)	$	(1	)	$	2	$	(189	)	$	28