Consolidated Income Statement - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
OPERATING REVENUES
Total operating revenues	$ 12,337	$ 12,033	$ 12,075
OPERATING EXPENSES
Depreciation and amortization	1,438	1,341	1,216
Taxes, other than income taxes	2,266	2,155	2,031
TOTAL OPERATING EXPENSES	9,804	9,260	9,399
Gain on sale of solar electric production project in 2017 and retail electric supply business in 2016	0	1	104
Gain on acquisition of Sempra Solar Holdings, LLC	131	0	0
OPERATING INCOME	2,664	2,774	2,780
OTHER INCOME (DEDUCTIONS)
Investment income	119	111	75
Other income	17	15	16
Allowance for equity funds used during construction	12	11	10
Other deductions	(210)	(185)	(242)
TOTAL OTHER INCOME	(62)	(48)	(141)
INCOME BEFORE INTEREST AND INCOME TAX EXPENSE	2,602	2,726	2,639
INTEREST EXPENSE
Interest on long-term debt	780	726	678
Other interest	49	11	24
Allowance for borrowed funds used during construction	(10)	(8)	(6)
NET INTEREST EXPENSE	819	729	696
INCOME BEFORE INCOME TAX EXPENSE	1,783	1,997	1,943
INCOME TAX EXPENSE	401	472	698
NET INCOME	$ 1,382	$ 1,525	$ 1,245
Net income per common share — basic (in dollars per share)	$ 4.43	$ 4.97	$ 4.15
Net income per common share — diluted (in dollars per share)	$ 4.42	$ 4.94	$ 4.12
AVERAGE NUMBER OF SHARES OUTSTANDING — BASIC (in shares)	311.7	307.1	300.4
AVERAGE NUMBER OF SHARES OUTSTANDING — DILUTED (in shares)	312.9	308.8	301.9
CECONY
OPERATING REVENUES
Total operating revenues	$ 10,680	$ 10,468	$ 10,165
OPERATING EXPENSES
Depreciation and amortization	1,276	1,195	1,106
Taxes, other than income taxes	2,156	2,057	1,932
TOTAL OPERATING EXPENSES	8,326	7,919	7,714
OPERATING INCOME	2,354	2,549	2,451
OTHER INCOME (DEDUCTIONS)
Investment income	13	14	8
Allowance for equity funds used during construction	11	10	8
Other deductions	(167)	(161)	(205)
TOTAL OTHER INCOME	(143)	(137)	(189)
INCOME BEFORE INTEREST AND INCOME TAX EXPENSE	2,211	2,412	2,262
INTEREST EXPENSE
Interest on long-term debt	662	615	588
Other interest	36	14	19
Allowance for borrowed funds used during construction	(9)	(6)	(4)
NET INTEREST EXPENSE	689	623	603
INCOME BEFORE INCOME TAX EXPENSE	1,522	1,789	1,659
INCOME TAX EXPENSE	326	685	603
NET INCOME	1,196	1,104	1,056
Electric
OPERATING REVENUES
Total operating revenues	8,612	8,612	8,741
Electric | CECONY
OPERATING REVENUES
Total operating revenues	7,971	7,972	8,106
Gas
OPERATING REVENUES
Total operating revenues	2,327	2,133	1,692
OPERATING EXPENSES
Operating costs	1,041	808	477
Gas | CECONY
OPERATING REVENUES
Total operating revenues	2,078	1,901	1,508
OPERATING EXPENSES
Operating costs	643	510	319
Steam
OPERATING REVENUES
Total operating revenues	631	595	551
Steam | CECONY
OPERATING REVENUES
Total operating revenues	631	595	551
Non-utility
OPERATING REVENUES
Total operating revenues	767	693	1,091
Power
OPERATING EXPENSES
Operating costs	1,644	1,601	2,439
Power | CECONY
OPERATING EXPENSES
Operating costs	1,433	1,415	1,568
Fuel
OPERATING EXPENSES
Operating costs	263	216	172
Fuel | CECONY
OPERATING EXPENSES
Operating costs	263	216	172
Other operations and maintenance
OPERATING EXPENSES
Operating costs	3,152	3,139	3,064
Other operations and maintenance | CECONY
OPERATING EXPENSES
Operating costs	$ 2,555	$ 2,526	$ 2,617