MARKETABLE SECURITIES (Tables)

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

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



	As of September 30, 2017									As of December 31, 2016
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	$	286.5	$	5.5	$	(0.5	)	$	291.5	$	296.2	$	1.1	$	(2.1	)	$	295.2
Equity Securities	210.7		81.5		—			292.2		203.3		62.3		(1.2		)	264.4

Investments Classified by Contractual Maturity Date

As of September 30, 2017, 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⁾	$	40.2	$	40.2
One to five years	56.7		57.6
Six to ten years	52.6		54.1
Greater than ten years	137.0		139.6
Total Debt Securities	$	286.5	$	291.5


⁽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 September 30, 2017		As of December 31, 2016
Level 1:
Mutual Funds and Equities	$	292.2	$	274.0
Money Market Funds	21.8		54.8
Total Level 1	$	314.0	$	328.8
Level 2:
U.S. Government Issued Debt Securities (Agency and Treasury)	$	69.0	$	63.0
Corporate Debt Securities	56.1		41.1
Asset-Backed Debt Securities	20.4		18.5
Municipal Bonds	113.6		107.5
Other Fixed Income Securities	10.6		10.3
Total Level 2	$	269.7	$	240.4
Total Marketable Securities	$	583.7	$	569.2