SHORT-TERM AND LONG-TERM DEBT (Tables)

6 Months Ended

Jun. 30, 2020

Debt Disclosure [Abstract]

Borrowings Outstanding and Available under the Commecrial Paper Programs

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, 2020		December 31, 2019		June 30, 2020		December 31, 2019		June 30, 2020		December 31, 2019
(Millions of Dollars)
Eversource Parent Commercial Paper Program	$	351.5	$	1,224.9	$	1,098.5	$	225.1	0.18	%	1.98	%
NSTAR Electric Commercial Paper Program	142.0		10.5		508.0		639.5		0.12	%	1.63	%

Summary of Long-Term Debt Issuance and Repayments

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

(Millions of Dollars)	Issuance/(Repayment)			Issue Date or Repayment Date	Maturity Date	Use of Proceeds for Issuance/ Repayment Information
NSTAR Electric:
3.95% 2020 Debentures	$	400.0		March 2020	April 2030	Refinanced investments in eligible green expenditures, which were previously financed in 2018 and 2019
5.10% Series E Senior Notes	(95.0		)	March 2020	March 2020	Paid at maturity
Other:
Eversource Parent 3.45% Series P Senior Notes	350.0			January 2020	January 2050	Paid short-term borrowings
NSTAR Gas 4.46% Series N First Mortgage Bonds	(125.0		)	January 2020	January 2020	Paid at maturity
Yankee Gas 4.87% Series K First Mortgage Bonds	(50.0		)	April 2020	April 2020	Paid at maturity
NSTAR Gas 2.33% Series R First Mortgage Bonds	75.0			May 2020	May 2025	Refinanced existing indebtedness, funded capital expenditures and for general corporate purposes
NSTAR Gas 3.15% Series S First Mortgage Bonds	115.0			May 2020	May 2050	Refinanced existing indebtedness, funded capital expenditures and for general corporate purposes