Consolidated Statement of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
OPERATING ACTIVITIES
NET INCOME	$ 1,010	$ 828
PRINCIPAL NON-CASH CHARGES/(CREDITS) TO INCOME
Depreciation and amortization	796	764
Deferred income taxes	424	116
Rate case amortization and accruals	77	1
Common equity component of allowance for funds used during construction	(4)	(2)
Net derivative gains	(14)	(6)
Pre-tax gains on termination of LILO transactions		(95)
Pre-tax gain on sale of solar energy projects	(45)
Other non-cash items (net)	10	46
CHANGES IN ASSETS AND LIABILITIES
Accounts receivable - customers, less allowance for uncollectibles	(35)	(51)
Special deposits	312	(305)
Materials and supplies, including fuel oil and gas in storage	19	(38)
Other receivables and other current assets	(7)	(8)
Prepayments	(508)	(362)
Accounts payable	54	(193)
Pensions and retiree benefits obligations (net)	612	665
Pensions and retiree benefits contributions	(584)	(887)
Accrued taxes	(428)	217
Accrued interest	(81)	171
Superfund and environmental remediation costs (net)	24	(6)
Deferred charges, noncurrent assets and other regulatory assets	(97)	(6)
Deferred credits and other regulatory liabilities	234	291
Other assets	(3)	51
Other liabilities	(15)	47
NET CASH FLOWS FROM OPERATING ACTIVITIES	1,751	1,238
INVESTING ACTIVITIES
Utility construction expenditures	(1,663)	(1,701)
Cost of removal less salvage	(168)	(144)
Non-utility construction expenditures	(152)	(149)
Investments in solar energy projects	(172)	(174)
Proceeds from grants related to solar energy projects	36	88
Proceeds from sale of solar energy projects	108
Restricted cash	15	(15)
Proceeds from the termination of LILO transactions		200
NET CASH FLOWS USED IN INVESTING ACTIVITIES	(1,996)	(1,895)
FINANCING ACTIVITIES
Net issuance of short-term debt	(26)	681
Issuance of long-term debt	850	919
Retirement of long-term debt	(478)	(707)
Debt issuance costs	(9)	(12)
Common stock dividends	(553)	(540)
Issuance of common shares for stock plans, net of repurchases	(8)	(4)
NET CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES	(224)	337
CASH AND TEMPORARY CASH INVESTMENTS:
NET CHANGE FOR THE PERIOD	(469)	(320)
BALANCE AT BEGINNING OF PERIOD	674	394
BALANCE AT END OF PERIOD	205	74
Cash paid during the period for:
Interest	382	372
Income taxes	635	27
CECONY [Member]
OPERATING ACTIVITIES
NET INCOME	905	831
PRINCIPAL NON-CASH CHARGES/(CREDITS) TO INCOME
Depreciation and amortization	737	705
Deferred income taxes	267	364
Rate case amortization and accruals	77	1
Common equity component of allowance for funds used during construction	(3)	(1)
Other non-cash items (net)	(11)	(72)
CHANGES IN ASSETS AND LIABILITIES
Accounts receivable - customers, less allowance for uncollectibles	(11)	(39)
Materials and supplies, including fuel oil and gas in storage	26	(26)
Other receivables and other current assets	(264)	(27)
Prepayments	(353)	(347)
Accounts payable	(47)	(180)
Pensions and retiree benefits obligations (net)	580	616
Pensions and retiree benefits contributions	(544)	(830)
Accrued taxes	(188)	(92)
Accrued interest	1	43
Superfund and environmental remediation costs (net)	27	(6)
Deferred charges, noncurrent assets and other regulatory assets	(100)	63
Deferred credits and other regulatory liabilities	218	302
Other liabilities	(11)	64
NET CASH FLOWS FROM OPERATING ACTIVITIES	1,306	1,369
INVESTING ACTIVITIES
Utility construction expenditures	(1,554)	(1,614)
Cost of removal less salvage	(163)	(139)
NET CASH FLOWS USED IN INVESTING ACTIVITIES	(1,717)	(1,753)
FINANCING ACTIVITIES
Net issuance of short-term debt	(9)	621
Issuance of long-term debt	850	700
Retirement of long-term debt	(475)	(700)
Debt issuance costs	(9)	(7)
Dividend to parent	(534)	(545)
NET CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES	(177)	69
CASH AND TEMPORARY CASH INVESTMENTS:
NET CHANGE FOR THE PERIOD	(588)	(315)
BALANCE AT BEGINNING OF PERIOD	633	353
BALANCE AT END OF PERIOD	45	38
Cash paid during the period for:
Interest	349	336
Income taxes	$ 749	$ 117