Consolidated Statement of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
NET INCOME	$ 370us-gaap_NetIncomeLoss	$ 361us-gaap_NetIncomeLoss
OTHER COMPREHENSIVE INCOME, NET OF TAXES
Pension and other postretirement benefit plan liability adjustments, net of taxes	5	4
TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAXES	5	4
COMPREHENSIVE INCOME FOR COMMON STOCK	375	365
CECONY [Member]
NET INCOME	348	334
OTHER COMPREHENSIVE INCOME, NET OF TAXES
Pension and other postretirement benefit plan liability adjustments, net of taxes		1
TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAXES		1
COMPREHENSIVE INCOME	$ 348	$ 335

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.

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