Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2016

Accounting Policies [Abstract]

Earnings Per Common Share

For the three and six months ended June 30, 2016 and 2015, basic and diluted earnings per share (EPS) for Con Edison are calculated as follows:

	For the Three Months Ended June 30,		For the Six Months Ended June 30,
(Millions of Dollars, except per share amounts/Shares in Millions)	2016	2015	2016	2015
Net income	$232	$219	$542	$589
Weighted average common shares outstanding – basic	299.1	292.9	296.7	292.9
Add: Incremental shares attributable to effect of potentially dilutive securities	1.3	1.1	1.3	1.0
Adjusted weighted average common shares outstanding – diluted	300.4	294.0	298.0	293.9
Net income per common share – basic	$0.78	$0.75	$1.83	$2.01
Net income per common share – diluted	$0.77	$0.74	$1.82	$2.01

Changes in Accumulated Other Comprehensive Income/(Loss) by Component

For the three and six months ended June 30, 2016 and 2015, changes to accumulated other comprehensive income/(loss) (OCI) for Con Edison and CECONY are as follows:

	For the Three Months Ended June 30,
	Con Edison		CECONY
(Millions of Dollars)	2016	2015	2016	2015
Beginning balance, accumulated OCI, net of taxes (a)	$(34)	$(40)	$(9)	$(11)
Amounts reclassified from accumulated OCI related to pension plan liabilities, net of tax of $(1) for Con Edison in 2016 and 2015 (a)(b)	1	1	1	1
Current period OCI, net of taxes	1	1	1	1
Ending balance, accumulated OCI, net of taxes	$(33)	$(39)	$(8)	$(10)

	For the Six Months Ended June 30,
	Con Edison		CECONY
(Millions of Dollars)	2016	2015	2016	2015
Beginning balance, accumulated OCI, net of taxes (a)	$(34)	$(45)	$(9)	$(11)
OCI before reclassifications, net of tax of $1 and $(2) for Con Edison in 2016 and 2015, respectively	(1)	3	—	—
Amounts reclassified from accumulated OCI related to pension plan liabilities, net of tax of $(2) for Con Edison in 2016 and 2015 (a)(b)	2	3	1	1
Current period OCI, net of taxes	1	6	1	1
Ending balance, accumulated OCI, net of taxes	$(33)	$(39)	$(8)	$(10)

(a) Tax reclassified from accumulated OCI is reported in the income tax expense line item of the consolidated income statement.

(b) For the portion of unrecognized pension and other postretirement benefit costs relating to the Utilities, costs are recorded into, and amortized out of, regulatory assets instead of OCI. The net actuarial losses and prior service costs recognized during the period are included in the computation of total periodic pension and other postretirement benefit cost. See Notes E and F.