ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Tables)

12 Months Ended

Dec. 31, 2021

Changes in Accumulated Other Comprehensive Income/(Loss) by Component, Net of Tax

The changes in accumulated other comprehensive income/(loss) by component, net of tax, are as follows:


	For the Year Ended December 31, 2021								For the Year Ended December 31, 2020
Eversource (Millions of Dollars)	Qualified Cash Flow Hedging Instruments		Unrealized Gains/(Losses) on Marketable Securities		Defined Benefit Plans		Total		Qualified Cash Flow Hedging Instruments		Unrealized Gains on Marketable Securities		Defined Benefit Plans		Total
Balance as of January 1st	$	(1.4)	$	1.1	$	(76.1)	$	(76.4)	$	(3.0)	$	0.7	$	(62.8)	$	(65.1)

OCI Before Reclassifications	—		(0.7)		24.1		23.4		—		0.4		(19.6)		(19.2)
Amounts Reclassified from AOCI	1.0		—		9.7		10.7		1.6		—		6.3		7.9
Net OCI	1.0		(0.7)		33.8		34.1		1.6		0.4		(13.3)		(11.3)
Balance as of December 31st	$	(0.4)	$	0.4	$	(42.3)	$	(42.3)	$	(1.4)	$	1.1	$	(76.1)	$	(76.4)

Schedule of Amounts Reclassified from AOCI by Component

The following table sets forth the amounts reclassified from AOCI by component and the impacted line item on the statements of income:


	Amounts Reclassified from AOCI
Eversource (Millions of Dollars)	For the Years Ended December 31,						Statements of Income Line Item Impacted
	2021		2020		2019
Qualified Cash Flow Hedging Instruments	$	(1.7)	$	(2.5)	$	(2.5)	Interest Expense
Tax Effect	0.7		0.9		1.1		Income Tax Expense
Qualified Cash Flow Hedging Instruments, Net of Tax	$	(1.0)	$	(1.6)	$	(1.4)
Defined Benefit Plan Costs:
Amortization of Actuarial Losses	$	(13.1)	$	(8.1)	$	(5.7)	Other Income, Net (1)
Amortization of Prior Service Credit/(Cost)	—		(0.3)		(1.8)		Other Income, Net (1)
Total Defined Benefit Plan Costs	(13.1)		(8.4)		(7.5)
Tax Effect	3.4		2.1		1.9		Income Tax Expense
Defined Benefit Plan Costs, Net of Tax	$	(9.7)	$	(6.3)	$	(5.6)
Total Amounts Reclassified from AOCI, Net of Tax	$	(10.7)	$	(7.9)	$	(7.0)

(1) These amounts are included in the computation of net periodic Pension, SERP and PBOP costs. See Note 1M, "Summary of Significant Accounting Policies – Other Income, Net" and Note 11A, "Employee Benefits – Pension Benefits and Postretirement Benefits Other Than Pension," for further information.