Consolidated Income Statement - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
OPERATING REVENUES
Total operating revenues	$ 12,574	$ 12,337	$ 12,033
OPERATING EXPENSES
Depreciation and amortization	1,684	1,438	1,341
Taxes, other than income taxes	2,406	2,266	2,155
TOTAL OPERATING EXPENSES	9,898	9,804	9,260
Gain on sale of solar electric production project in 2017	0	0	1
Gain on acquisition of Sempra Solar Holdings, LLC	0	131	0
OPERATING INCOME	2,676	2,664	2,774
OTHER INCOME (DEDUCTIONS)
Investment income	96	119	111
Other income	45	17	15
Allowance for equity funds used during construction	14	12	11
Other deductions	(104)	(210)	(185)
TOTAL OTHER INCOME (DEDUCTIONS)	51	(62)	(48)
INCOME BEFORE INTEREST AND INCOME TAX EXPENSE	2,727	2,602	2,726
INTEREST EXPENSE
Interest on long-term debt	888	780	726
Other interest	116	49	11
Allowance for borrowed funds used during construction	(13)	(10)	(8)
NET INTEREST EXPENSE	991	819	729
INCOME BEFORE INCOME TAX EXPENSE	1,736	1,783	1,997
INCOME TAX EXPENSE	296	401	472
NET INCOME	1,440	1,382	1,525
Income attributable to non-controlling interest	97	0	0
NET INCOME FOR COMMON STOCK	$ 1,343	$ 1,382	$ 1,525
Net income per common share — basic (in dollars per share)	$ 4.09	$ 4.43	$ 4.97
Net income per common share — diluted (in dollars per share)	$ 4.08	$ 4.42	$ 4.94
AVERAGE NUMBER OF SHARES OUTSTANDING — BASIC (in shares)	328.5	311.7	307.1
AVERAGE NUMBER OF SHARES OUTSTANDING — DILUTED (in shares)	329.5	312.9	308.8
CECONY
OPERATING REVENUES
Total operating revenues	$ 10,821	$ 10,680	$ 10,468
OPERATING EXPENSES
Depreciation and amortization	1,373	1,276	1,195
Taxes, other than income taxes	2,295	2,156	2,057
TOTAL OPERATING EXPENSES	8,473	8,326	7,919
OPERATING INCOME	2,348	2,354	2,549
OTHER INCOME (DEDUCTIONS)
Investment income	40	13	14
Allowance for equity funds used during construction	12	11	10
Other deductions	(87)	(167)	(161)
TOTAL OTHER INCOME (DEDUCTIONS)	(35)	(143)	(137)
INCOME BEFORE INTEREST AND INCOME TAX EXPENSE	2,313	2,211	2,412
INTEREST EXPENSE
Interest on long-term debt	672	662	615
Other interest	67	36	14
Allowance for borrowed funds used during construction	(11)	(9)	(6)
NET INTEREST EXPENSE	728	689	623
INCOME BEFORE INCOME TAX EXPENSE	1,585	1,522	1,789
INCOME TAX EXPENSE	335	326	685
NET INCOME FOR COMMON STOCK	1,250	1,196	1,104
Electric
OPERATING REVENUES
Total operating revenues	8,694	8,612	8,612
Electric | CECONY
OPERATING REVENUES
Total operating revenues	8,062	7,971	7,972
Gas
OPERATING REVENUES
Total operating revenues	2,391	2,327	2,133
OPERATING EXPENSES
Operating costs	880	1,041	808
Gas | CECONY
OPERATING REVENUES
Total operating revenues	2,132	2,078	1,901
OPERATING EXPENSES
Operating costs	606	643	510
Steam
OPERATING REVENUES
Total operating revenues	627	631	595
Steam | CECONY
OPERATING REVENUES
Total operating revenues	627	631	595
Non-utility
OPERATING REVENUES
Total operating revenues	862	767	693
Power
OPERATING EXPENSES
Operating costs	1,546	1,644	1,601
Power | CECONY
OPERATING EXPENSES
Operating costs	1,357	1,433	1,415
Fuel
OPERATING EXPENSES
Operating costs	207	263	216
Fuel | CECONY
OPERATING EXPENSES
Operating costs	207	263	216
Other operations and maintenance
OPERATING EXPENSES
Operating costs	3,175	3,152	3,139
Other operations and maintenance | CECONY
OPERATING EXPENSES
Operating costs	$ 2,635	$ 2,555	$ 2,526