CONSOLIDATED STATEMENT OF CASH FLOWS (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
OPERATING ACTIVITIES
Net Income	$ 934	$ 869
PRINCIPAL NON-CASH CHARGES/(CREDITS) TO INCOME
Depreciation and amortization	709	659
Deferred income taxes	344	368
Rate case amortization and accruals	32	39
Common equity component of allowance for funds used during construction	(3)	(8)
Net derivative gains	(61)	(25)
Other non-cash items (net)	(53)	6
CHANGES IN ASSETS AND LIABILITIES
Accounts receivable - customers, less allowance for uncollectibles	(196)	(4)
Materials and supplies, including fuel oil and gas in storage	1	(27)
Other receivables and other current assets	54	70
Prepayments	(288)	(128)
Accounts payable	18	(50)
Pensions and retiree benefits obligations	713	578
Pensions and retiree benefits contributions	(821)	(579)
Accrued taxes	(80)	76
Accrued interest	46	57
Superfund and environmental remediation costs (net)	7
Deferred charges, noncurrent assets and other regulatory assets	183	92
Deferred credits and other regulatory liabilities	83	158
Other liabilities	16	10
NET CASH FLOWS FROM OPERATING ACTIVITIES	1,638	2,161
INVESTING ACTIVITIES
Utility construction expenditures	(1,450)	(1,404)
Cost of removal less salvage	(118)	(123)
Non-utility construction expenditures	(68)	(57)
Acquisition of Alpaugh solar energy projects	(286)
Proceeds from grants related to renewable energy investments	27	4
Net investment in Pilesgrove solar project and other	28	(31)
NET CASH FLOWS USED IN INVESTING ACTIVITIES	(1,867)	(1,611)
FINANCING ACTIVITIES
Net proceeds from short-term debt	340
Preferred stock redemption	(239)
Retirement of long-term debt	(304)	(3)
Issuance of long-term debt	400
Issuance of common shares for stock plans, net of repurchases	(16)	41
Debt issuance costs	(4)
Common stock dividends	(524)	(519)
Preferred stock dividends	(3)	(9)
NET CASH FLOWS USED IN FINANCING ACTIVITIES	(350)	(490)
CASH AND TEMPORARY CASH INVESTMENTS:
NET CHANGE FOR THE PERIOD	(579)	60
BALANCE AT BEGINNING OF PERIOD	648	338
BALANCE AT END OF PERIOD	69	398
Cash paid/(refunded) during the period for:
Interest	379	371
Income taxes	46	(132)
CECONY [Member]
OPERATING ACTIVITIES
Net Income	827	788
PRINCIPAL NON-CASH CHARGES/(CREDITS) TO INCOME
Depreciation and amortization	664	618
Deferred income taxes	220	309
Rate case amortization and accruals	32	38
Common equity component of allowance for funds used during construction	(2)	(6)
Other non-cash items (net)	84	60
CHANGES IN ASSETS AND LIABILITIES
Accounts receivable - customers, less allowance for uncollectibles	(197)	3
Materials and supplies, including fuel oil and gas in storage	12	2
Other receivables and other current assets	(41)	243
Prepayments	(308)	(303)
Accounts payable	50	(45)
Pensions and retiree benefits obligations	639	527
Pensions and retiree benefits contributions	(761)	(532)
Accrued taxes	40	(7)
Accrued interest	46	46
Superfund and environmental remediation costs (net)	7
Deferred charges, noncurrent assets and other regulatory assets	84	33
Deferred credits and other regulatory liabilities	88	167
Other liabilities	(21)	19
NET CASH FLOWS FROM OPERATING ACTIVITIES	1,463	1,960
INVESTING ACTIVITIES
Utility construction expenditures	(1,368)	(1,332)
Cost of removal less salvage	(115)	(118)
NET CASH FLOWS USED IN INVESTING ACTIVITIES	(1,483)	(1,450)
FINANCING ACTIVITIES
Net proceeds from short-term debt	332
Preferred stock redemption	(239)
Retirement of long-term debt	(300)
Issuance of long-term debt	400
Debt issuance costs	(4)
Dividend to parent	(512)	(509)
Preferred stock dividends	(3)	(9)
NET CASH FLOWS USED IN FINANCING ACTIVITIES	(326)	(518)
CASH AND TEMPORARY CASH INVESTMENTS:
NET CHANGE FOR THE PERIOD	(346)	(8)
BALANCE AT BEGINNING OF PERIOD	372	78
BALANCE AT END OF PERIOD	26	70
Cash paid/(refunded) during the period for:
Interest	344	336
Income taxes	$ 50	$ (103)