MARKETABLE SECURITIES (Tables)

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

The following is a summary of the available-for-sale debt securities, which are recorded at fair value and are included in current and long-term Marketable Securities on the balance sheets.



	As of March 31, 2018									As of December 31, 2017
Eversource (Millions of Dollars)	Amortized Cost		Pre-Tax Unrealized Gains		Pre-Tax Unrealized Losses			Fair Value		Amortized Cost		Pre-Tax Unrealized Gains		Pre-Tax Unrealized Losses			Fair Value
Debt Securities	$	282.1	$	0.8	$	(3.3	)	$	279.6	$	284.9	$	3.2	$	(1.1	)	$	287.0

Investments Classified by Contractual Maturity Date

As of March 31, 2018, the contractual maturities of available-for-sale debt securities were as follows:



Eversource (Millions of Dollars)	Amortized Cost		Fair Value
Less than one year⁽¹⁾	$	36.0	$	35.9
One to five years	44.6		45.1
Six to ten years	63.9		63.3
Greater than ten years	137.6		135.3
Total Debt Securities	$	282.1	$	279.6


⁽¹⁾	Amounts in the Less than one year category include securities in the CYAPC and YAEC nuclear decommissioning trusts, which are restricted and are classified in long-term Marketable Securities on the balance sheets.

Fair Value on a Recurring Basis

The following table presents the marketable securities recorded at fair value on a recurring basis by the level in which they are classified within the fair value hierarchy:



Eversource (Millions of Dollars)	As of March 31, 2018		As of December 31, 2017
Level 1:
Mutual Funds and Equities	$	317.3	$	313.8
Money Market Funds	23.3		23.3
Total Level 1	$	340.6	$	337.1
Level 2:
U.S. Government Issued Debt Securities (Agency and Treasury)	$	68.0	$	70.2
Corporate Debt Securities	43.7		50.9
Asset-Backed Debt Securities	20.7		21.2
Municipal Bonds	114.3		110.7
Other Fixed Income Securities	9.6		10.7
Total Level 2	$	256.3	$	263.7
Total Marketable Securities	$	596.9	$	600.8