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

3 Months Ended

Mar. 31, 2013

Other Postretirement Benefits [Member]

Net Periodic Postretirement Benefit Costs

The components of the Companies’ net periodic postretirement benefit costs for the three months ended March 31, 2013 and 2012 were as follows:

	Con Edison						CECONY
(Millions of Dollars)	2013			2012			2013			2012
Service cost		$   6			$   7			$   5			$   5
Interest cost on accumulated other postretirement benefit obligation		14			18			12			16
Expected return on plan assets		(19	)		(21	)		(17	)		(18	)
Recognition of net actuarial loss		16			25			14			22
Recognition of prior service cost		(7	)		(5	)		(6	)		(4	)
NET PERIODIC POSTRETIREMENT BENEFIT COST		$ 10			$ 24			$   8			$ 21
Cost capitalized		(3	)		(8	)		(2	)		(7	)
Reconciliation to rate level		12			7			11			4
Cost charged to operating expenses		$ 19			$ 23			$ 17			$ 18