Consolidated Income Statement (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
OPERATING REVENUES
Electric	$ 2,134	$ 2,018	$ 4,372	$ 3,977
Gas	395	366	1,277	1,108
Steam	98	118	439	450
Non-utility	284	316	612	468
TOTAL OPERATING REVENUES	2,911	2,818	6,700	6,003
OPERATING EXPENSES
Purchased power	783	768	1,746	1,475
Fuel	34	58	189	205
Gas purchased for resale	151	118	551	368
Other operations and maintenance	801	776	1,627	1,606
Depreciation and amortization	265	255	526	506
Taxes, other than income taxes	467	457	966	931
TOTAL OPERATING EXPENSES	2,501	2,432	5,605	5,091
Gain on sale of solar energy projects	45		45
OPERATING INCOME	455	386	1,140	912
OTHER INCOME (DEDUCTIONS)
Investment and other income	14	7	25	10
Allowance for equity funds used during construction	1	1	3	1
Other deductions	(6)	(6)	(8)	(8)
TOTAL OTHER INCOME (DEDUCTIONS)	9	2	20	3
INCOME BEFORE INTEREST AND INCOME TAX EXPENSE	464	388	1,160	915
INTEREST EXPENSE
Interest on long-term debt	147	145	293	288
Other interest	4	6	(5)	142
Allowance for borrowed funds used during construction	(1)		(2)	(1)
NET INTEREST EXPENSE	150	151	286	429
INCOME BEFORE INCOME TAX EXPENSE	314	237	874	486
INCOME TAX EXPENSE	102	65	300	122
NET INCOME FOR COMMON STOCK	212	172	574	364
Net income for common stock per common share - basic	$ 0.73	$ 0.59	$ 1.96	$ 1.24
Net income for common stock per common share - diluted	$ 0.72	$ 0.59	$ 1.95	$ 1.24
DIVIDENDS DECLARED PER SHARE OF COMMON STOCK	$ 0.630	$ 0.615	$ 1.260	$ 1.230
AVERAGE NUMBER OF SHARES OUTSTANDING - BASIC (IN MILLIONS)	292.9	292.9	292.9	292.9
AVERAGE NUMBER OF SHARES OUTSTANDING - DILUTED (IN MILLIONS)	294.0	294.3	294.0	294.3
CECONY [Member]
OPERATING REVENUES
Electric	1,978	1,872	4,053	3,686
Gas	360	331	1,149	991
Steam	98	118	439	450
TOTAL OPERATING REVENUES	2,436	2,321	5,641	5,127
OPERATING EXPENSES
Purchased power	517	469	1,135	924
Fuel	34	58	189	205
Gas purchased for resale	104	98	451	317
Other operations and maintenance	699	676	1,424	1,417
Depreciation and amortization	247	235	486	468
Taxes, other than income taxes	449	439	926	890
TOTAL OPERATING EXPENSES	2,050	1,975	4,611	4,221
OPERATING INCOME	386	346	1,030	906
OTHER INCOME (DEDUCTIONS)
Investment and other income	1	3	8	5
Allowance for equity funds used during construction	1		1	1
Other deductions	(5)	(5)	(7)	(7)
TOTAL OTHER INCOME (DEDUCTIONS)	(3)	(2)	2	(1)
INCOME BEFORE INTEREST AND INCOME TAX EXPENSE	383	344	1,032	905
INTEREST EXPENSE
Interest on long-term debt	130	129	258	256
Other interest	3	5	7	11
Allowance for borrowed funds used during construction			(1)	(1)
NET INTEREST EXPENSE	133	134	264	266
INCOME BEFORE INCOME TAX EXPENSE	250	210	768	639
INCOME TAX EXPENSE	78	57	262	209
NET INCOME FOR COMMON STOCK	$ 172	$ 153	$ 506	$ 430