SHORT-TERM AND LONG-TERM DEBT (Tables)

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Schedule of Commercial Paper Program

The amount of borrowings outstanding and available under the commercial paper programs were as follows:

	Borrowings Outstanding as of				Available Borrowing Capacity as of				Weighted-Average Interest Rate as of
	June 30, 2018		December 31, 2017		June 30, 2018		December 31, 2017		June 30, 2018		December 31, 2017
(Millions of Dollars)
Eversource Parent Commercial Paper Program	$	747.0	$	979.3	$	703.0	$	470.7	2.28	%	1.86	%
NSTAR Electric Commercial Paper Program	443.8		234.0		206.2		416.0		1.99	%	1.55	%

Schedule of Long-term Debt Instruments

The following table summarizes long-term debt issuances and repayments:

(Millions of Dollars)	Issue Date	Issuances/(Repayments)			Maturity Date	Use of Proceeds for Issuances/ Repayment Information
CL&P:
4.00% 2018 Series A First Mortgage Bonds	March 2018	$	500.0		April 2048	Repay long-term debt due to mature in 2018 and repay short-term borrowings
5.65% 2008 Series A First Mortgage Bonds	May 2008	(300.0		)	May 2018	Repayment at maturity paid on May 1, 2018
PSNH:
6.00% 2008 Series O First Mortgage Bonds	May 2008	(110.0		)	May 2018	Repayment at maturity paid on May 1, 2018
Eversource Parent:
2.50% Series I Senior Notes (1)	January 2018	200.0			March 2021	Repay long-term debt due to mature in 2018 and repay short-term borrowings
3.30% Series M Senior Notes	January 2018	450.0			January 2028	Repay long-term debt due to mature in 2018
1.60% Series G Senior Notes	January 2015	(150.0		)	January 2018	Repayment at maturity paid on January 15, 2018
1.45% Series E Senior Notes	May 2013	(300.0		)	May 2018	Repayment at maturity paid on May 1, 2018

⁽¹⁾  These notes are part of the same series issued by Eversource parent in March 2016. The aggregate outstanding principal amount for these notes is now $450 million.