Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
OPERATING ACTIVITIES
Net income	$ 616	$ 563
PRINCIPAL NON-CASH CHARGES/(CREDITS) TO INCOME
Depreciation and amortization	702	662
Deferred income taxes	155	359
Rate case amortization and accruals	(56)	(62)
Common equity component of allowance for funds used during construction	(7)	(5)
Net derivative gains	2	2
Unbilled revenue and net unbilled revenue deferrals	113	18
Gain on sale of solar electric production project	0	(1)
Other non-cash items, net	(55)	(61)
CHANGES IN ASSETS AND LIABILITIES
Accounts receivable – customers	5	128
Materials and supplies, including fuel oil and gas in storage	16	(18)
Other receivables and other current assets	(68)	12
Taxes receivable	49	29
Prepayments	(36)	(36)
Accounts payable	(61)	(94)
Pensions and retiree benefits obligations, net	171	213
Pensions and retiree benefits contributions	(368)	(283)
Accrued taxes	(63)	(22)
Accrued interest	(4)	(18)
Superfund and environmental remediation costs, net	(6)	(6)
Distributions from equity investments	54	52
System benefit charge	94	132
Deferred charges, noncurrent assets and other regulatory assets	(233)	(45)
Deferred credits and other regulatory liabilities	244	(17)
Other current and noncurrent liabilities	(224)	72
NET CASH FLOWS FROM OPERATING ACTIVITIES	1,040	1,574
INVESTING ACTIVITIES
Utility construction expenditures	(1,602)	(1,425)
Cost of removal less salvage	(121)	(122)
Non-utility construction expenditures	(109)	(225)
Proceeds from sale of assets	0	34
Other investing activities	17	24
NET CASH FLOWS USED IN INVESTING ACTIVITIES	(1,866)	(1,731)
FINANCING ACTIVITIES
Net issuance of short-term debt	292	(18)
Issuance of long-term debt	1,640	997
Retirement of long-term debt	(619)	(426)
Debt issuance costs	(16)	(11)
Common stock dividends	(420)	(398)
Issuance of common shares for stock plans	26	25
NET CASH FLOWS FROM FINANCING ACTIVITIES	903	169
CASH, TEMPORARY CASH INVESTMENTS, AND RESTRICTED CASH:
NET CHANGE FOR THE PERIOD	77	12
BALANCE AT BEGINNING OF PERIOD	844	830
BALANCE AT END OF PERIOD	921	842
Cash paid/(received) during the period for:
Interest	389	372
Income taxes	(2)	(35)
SUPPLEMENTAL DISCLOSURE OF NON-CASH INFORMATION
Construction expenditures in accounts payable	333	308
Issuance of common shares for dividend reinvestment	24	23
Software licenses acquired but unpaid as of end of period	94	0
CECONY
OPERATING ACTIVITIES
Net income	538	482
PRINCIPAL NON-CASH CHARGES/(CREDITS) TO INCOME
Depreciation and amortization	626	591
Deferred income taxes	149	326
Rate case amortization and accruals	(65)	(72)
Common equity component of allowance for funds used during construction	(6)	(5)
Unbilled revenue and net unbilled revenue deferrals	36	18
Other non-cash items, net	(13)	(36)
CHANGES IN ASSETS AND LIABILITIES
Accounts receivable – customers	14	125
Materials and supplies, including fuel oil and gas in storage	10	(4)
Other receivables and other current assets	(74)	56
Accounts receivable from affiliated companies	(149)	17
Prepayments	(17)	(20)
Accounts payable	(71)	(60)
Accounts payable to affiliated companies	9	3
Pensions and retiree benefits obligations, net	157	191
Pensions and retiree benefits contributions	(367)	(281)
Accrued taxes	(66)	(17)
Accrued interest	(1)	0
Superfund and environmental remediation costs, net	(9)	(4)
System benefit charge	86	120
Accrued taxes to affiliated companies	(72)	(119)
Deferred charges, noncurrent assets and other regulatory assets	(164)	(72)
Deferred credits and other regulatory liabilities	229	11
Other current and noncurrent liabilities	(125)	(16)
NET CASH FLOWS FROM OPERATING ACTIVITIES	655	1,234
INVESTING ACTIVITIES
Utility construction expenditures	(1,509)	(1,341)
Cost of removal less salvage	(118)	(119)
NET CASH FLOWS USED IN INVESTING ACTIVITIES	(1,627)	(1,460)
FINANCING ACTIVITIES
Net issuance of short-term debt	400	150
Issuance of long-term debt	1,640	500
Retirement of long-term debt	(600)	0
Debt issuance costs	(16)	(6)
Capital contribution by parent	70	45
Dividend to parent	(423)	(398)
NET CASH FLOWS FROM FINANCING ACTIVITIES	1,071	291
CASH, TEMPORARY CASH INVESTMENTS, AND RESTRICTED CASH:
NET CHANGE FOR THE PERIOD	99	65
BALANCE AT BEGINNING OF PERIOD	730	704
BALANCE AT END OF PERIOD	829	769
Cash paid/(received) during the period for:
Interest	324	296
Income taxes	227	86
SUPPLEMENTAL DISCLOSURE OF NON-CASH INFORMATION
Construction expenditures in accounts payable	284	234
Software licenses acquired but unpaid as of end of period	89	0
Electric and Gas Transmission Projects
INVESTING ACTIVITIES
Investments in electric and gas transmission projects	(51)	(16)
Renewable Electric Production Projects
INVESTING ACTIVITIES
Investments in electric and gas transmission projects	$ 0	$ (1)