Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net income	$ 420	$ 392
Net income	419	375
PRINCIPAL NON-CASH CHARGES/(CREDITS) TO INCOME
Depreciation and amortization	497	470
Investment loss/impairment	172	0
Deferred income taxes	77	60
Rate case amortization and accruals	(8)	(11)
Common equity component of allowance for funds used during construction	(5)	(5)
Net derivative losses/(gains)	(65)	83
Unbilled revenue and net unbilled revenue deferrals	31	51
Other non-cash items, net	39	45
CHANGES IN ASSETS AND LIABILITIES
Accounts receivable – customers	(281)	(87)
Materials and supplies, including fuel oil and gas in storage	17	26
Revenue decoupling mechanism receivable	(42)	(32)
Other receivables and other current assets	56	28
Taxes receivable	15	(1)
Prepayments	(500)	(479)
Accounts payable	(178)	(156)
Pensions and retiree benefits obligations	73	4
Pensions and retiree benefits contributions	(4)	(4)
Accrued taxes	(35)	(45)
Accrued interest	116	85
Superfund and environmental remediation costs	(5)	(3)
Distributions from equity investments	10	11
System benefit charge	(20)	(19)
Deferred charges, noncurrent assets and other regulatory assets	(54)	(38)
Deferred credits and other regulatory liabilities	45	116
Other current and noncurrent liabilities	(82)	(79)
NET CASH FLOWS FROM OPERATING ACTIVITIES	289	412
INVESTING ACTIVITIES
Utility construction expenditures	(868)	(767)
Cost of removal less salvage	(86)	(68)
Non-utility construction expenditures	(141)	(130)
Investments in electric and gas transmission projects	(5)	(8)
Other investing activities	4	5
NET CASH FLOWS USED IN INVESTING ACTIVITIES	(1,096)	(968)
FINANCING ACTIVITIES
Net payment of short-term debt	183	(484)
Issuance of long-term debt	250	1,600
Retirement of long-term debt	(695)	(38)
Debt issuance costs	(3)	(22)
Common stock dividends	(253)	(243)
Issuance of common shares - public offering	0	88
Issuance of common shares for stock plans	16	14
Distribution to noncontrolling interest	(3)	(2)
Net proceeds from sale of equity interest	33	0
NET CASH FLOWS FROM/(USED IN) FINANCING ACTIVITIES	(472)	913
CASH, TEMPORARY CASH INVESTMENTS, AND RESTRICTED CASH:
NET CHANGE FOR THE PERIOD	(1,279)	357
BALANCE AT BEGINNING OF PERIOD	1,436	1,217
BALANCE AT END OF PERIOD	157	1,574
Cash paid/(received) during the period for:
Interest	112	143
Income taxes	(15)	2
SUPPLEMENTAL DISCLOSURE OF NON-CASH INFORMATION
Construction expenditures in accounts payable	390	343
Issuance of common shares for dividend reinvestment	12	12
CECONY
Net income	465	406
PRINCIPAL NON-CASH CHARGES/(CREDITS) TO INCOME
Depreciation and amortization	415	390
Deferred income taxes	113	94
Rate case amortization and accruals	(9)	(11)
Common equity component of allowance for funds used during construction	(5)	(4)
Unbilled revenue and net unbilled revenue deferrals	53	41
Other non-cash items, net	6	35
CHANGES IN ASSETS AND LIABILITIES
Accounts receivable – customers	(269)	(78)
Materials and supplies, including fuel oil and gas in storage	10	20
Revenue decoupling mechanism receivable	(40)	(22)
Other receivables and other current assets	42	25
Accounts receivable from affiliated companies	(5)	(8)
Prepayments	(496)	(473)
Accounts payable	(117)	(115)
Accounts payable to affiliated companies	17	0
Pensions and retiree benefits obligations	72	3
Pensions and retiree benefits contributions	(4)	(4)
Accrued taxes	(35)	(42)
Accrued interest	90	75
Superfund and environmental remediation costs	(7)	(5)
System benefit charge	(17)	(20)
Deferred charges, noncurrent assets and other regulatory assets	(48)	(39)
Deferred credits and other regulatory liabilities	46	122
Other current and noncurrent liabilities	(57)	(50)
NET CASH FLOWS FROM OPERATING ACTIVITIES	220	340
INVESTING ACTIVITIES
Utility construction expenditures	(818)	(719)
Cost of removal less salvage	(84)	(67)
NET CASH FLOWS USED IN INVESTING ACTIVITIES	(902)	(786)
FINANCING ACTIVITIES
Net payment of short-term debt	(233)	(540)
Issuance of long-term debt	0	1,600
Debt issuance costs	0	(23)
Capital contribution by parent	125	25
Dividend to parent	(247)	(246)
NET CASH FLOWS FROM/(USED IN) FINANCING ACTIVITIES	(355)	816
CASH, TEMPORARY CASH INVESTMENTS, AND RESTRICTED CASH:
NET CHANGE FOR THE PERIOD	(1,037)	370
BALANCE AT BEGINNING OF PERIOD	1,067	933
BALANCE AT END OF PERIOD	30	1,303
Cash paid/(received) during the period for:
Interest	88	97
Income taxes	5	12
SUPPLEMENTAL DISCLOSURE OF NON-CASH INFORMATION
Construction expenditures in accounts payable	332	292
Software Licenses
SUPPLEMENTAL DISCLOSURE OF NON-CASH INFORMATION
Capital expenditures incurred but unpaid as of end of period	51	80
Software Licenses | CECONY
SUPPLEMENTAL DISCLOSURE OF NON-CASH INFORMATION
Capital expenditures incurred but unpaid as of end of period	48	76
Equipment
SUPPLEMENTAL DISCLOSURE OF NON-CASH INFORMATION
Capital expenditures incurred but unpaid as of end of period	28	33
Equipment | CECONY
SUPPLEMENTAL DISCLOSURE OF NON-CASH INFORMATION
Capital expenditures incurred but unpaid as of end of period	$ 28	$ 33