Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
NET INCOME	$ 1,245	$ 1,193	$ 1,092
OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES
Pension and other postretirement benefit plan liability adjustments, net of taxes	7	11	(20)
TOTAL OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES	7	11	(20)
COMPREHENSIVE INCOME	1,252	1,204	1,072
CECONY
NET INCOME	1,056	1,084	1,058
OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES
Pension and other postretirement benefit plan liability adjustments, net of taxes	2	2	(5)
TOTAL OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES	2	2	(5)
COMPREHENSIVE INCOME	$ 1,058	$ 1,086	$ 1,053