CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2015	[1],[2]	Sep. 30, 2015	[1],[2]	Jun. 30, 2015	[1],[2]	Mar. 31, 2015	[1],[2]	Dec. 31, 2014	[2],[3]	Sep. 30, 2014	[2],[3]	Jun. 30, 2014	[2],[3]	Mar. 31, 2014	[2],[3]	Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
NET INCOME	$ 37,365		$ 65,573		$ 72,336		$ 67,132		$ 46,738		$ 73,873		$ 54,336		$ 69,136		$ 242,406	[1],[2]	$ 244,083	[2],[3]	$ 233,506
OTHER COMPREHENSIVE (LOSS) INCOME
Derivative instruments, net of tax (Note 13)																	(375)		(1,479)		24,304
Available-for-sale securities, net of tax (Note 13)																	(176)		(32)		71
TOTAL OTHER COMPREHENSIVE (LOSS) INCOME, NET OF TAX																	(551)		(1,511)		24,375
TOTAL COMPREHENSIVE INCOME																	$ 241,855		$ 242,572		$ 257,881

[1] During the third and fourth quarters of 2015, we recognized an aggregate regulatory liability for the refund relating to the formula rate template modifications filing as described in Note 4, which resulted in a reduction in operating revenues and operating income of $9.5 million and an estimated $6.2 million reduction to net income for the year ended December 31, 2015.

[2] During the year ended December 31, 2015 and the fourth quarter of 2014, we recognized an aggregate estimated regulatory liability for the potential refunds relating to the ROE complaints as described in Note 16, which resulted in a reduction in operating revenues and operating income of $115.1 million and $46.9 million and an estimated $73.2 million and $28.9 million reduction to net income for the years ended December 31, 2015 and 2014, respectively.

[3] During the second quarter of 2014, we incurred a loss on extinguishment of debt of $29.2 million related to the tender of ITC Holdings Senior Notes as described in Note 8, which resulted in an estimated reduction to net income of $18.2 million.