Consolidated Income Statement (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
OPERATING REVENUES
Electric	$ 2,822	$ 2,810	$ 6,799	$ 6,762
Gas	225	216	1,333	1,161
Steam	72	68	522	414
Non-utility	365	344	833	950
TOTAL OPERATING REVENUES	3,484	3,438	9,487	9,287
OPERATING EXPENSES
Purchased power	946	930	2,421	2,440
Fuel	56	59	261	213
Gas purchased for resale	74	56	443	314
Other operations and maintenance	795	826	2,400	2,365
Depreciation and amortization	258	240	764	709
Taxes, other than income taxes	500	476	1,431	1,360
TOTAL OPERATING EXPENSES	2,629	2,587	7,720	7,401
OPERATING INCOME	855	851	1,767	1,886
OTHER INCOME (DEDUCTIONS)
Investment and other income	8	4	19	14
Allowance for equity funds used during construction	1	1	2	3
Other deductions	(4)	(3)	(12)	(13)
TOTAL OTHER INCOME (DEDUCTIONS)	5	2	9	4
INCOME BEFORE INTEREST AND INCOME TAX EXPENSE	860	853	1,776	1,890
INTEREST EXPENSE
Interest on long-term debt	145	146	433	440
Other interest	2	6	143	17
Allowance for borrowed funds used during construction	(1)		(1)	(2)
NET INTEREST EXPENSE	146	152	575	455
INCOME BEFORE INCOME TAX EXPENSE	714	701	1,201	1,435
INCOME TAX EXPENSE	250	261	373	501
NET INCOME	464	440	828	934
Cumulative preferred dividends				(3)
NET INCOME FOR COMMON STOCK	464	440	828	931
Net income for common stock per common share-basic	$ 1.58	$ 1.50	$ 2.83	$ 3.18
Net income for common stock per common share-diluted	$ 1.58	$ 1.49	$ 2.81	$ 3.16
DIVIDENDS DECLARED PER SHARE OF COMMON STOCK	$ 0.615	$ 0.605	$ 1.845	$ 1.815
AVERAGE NUMBER OF SHARES OUTSTANDING-BASIC (IN MILLIONS)	292.9	292.9	292.9	292.9
AVERAGE NUMBER OF SHARES OUTSTANDING-DILUTED (IN MILLIONS)	294.3	294.6	294.3	294.6
CECONY [Member]
OPERATING REVENUES
Electric	2,622	2,611	6,309	6,307
Gas	199	189	1,190	1,017
Steam	72	68	522	414
TOTAL OPERATING REVENUES	2,893	2,868	8,021	7,738
OPERATING EXPENSES
Purchased power	624	604	1,548	1,554
Fuel	56	59	261	213
Gas purchased for resale	58	45	376	264
Other operations and maintenance	686	725	2,102	2,065
Depreciation and amortization	237	225	705	664
Taxes, other than income taxes	480	456	1,370	1,300
TOTAL OPERATING EXPENSES	2,141	2,114	6,362	6,060
OPERATING INCOME	752	754	1,659	1,678
OTHER INCOME (DEDUCTIONS)
Investment and other income	1	2	7	6
Allowance for equity funds used during construction	1		1	2
Other deductions	(3)	(2)	(10)	(10)
TOTAL OTHER INCOME (DEDUCTIONS)	(1)		(2)	(2)
INCOME BEFORE INTEREST AND INCOME TAX EXPENSE	751	754	1,657	1,676
INTEREST EXPENSE
Interest on long-term debt	127	130	384	395
Other interest	1	8	12	19
Allowance for borrowed funds used during construction			(1)	(1)
NET INTEREST EXPENSE	128	138	395	413
INCOME BEFORE INCOME TAX EXPENSE	623	616	1,262	1,263
INCOME TAX EXPENSE	222	227	431	436
NET INCOME	401	389	831	827
Cumulative preferred dividends				(3)
NET INCOME FOR COMMON STOCK	$ 401	$ 389	$ 831	$ 824