NSTAR ELECTRIC COMPANY AND SUBSIDIARY CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating Activities:
Net Income	$ 739,068	$ 634,422
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	583,568	545,352
Deferred Income Taxes	126,970	120,390
Uncollectible Expense	30,032	27,683
Pension and PBOP Contributions	(52,400)	(72,400)
Regulatory (Under)/Over Recoveries, Net	(226,238)	18,252
Cost of Removal Expenditures	(169,863)	(95,593)
Other	(75,916)	(58,472)
Changes in Current Assets and Liabilities:
Accounts Receivables from Subsidiaries	(176,132)	(85,261)
Taxes Receivable/Accrued, Net	85,071	(9,113)
Accounts Payable	(83,550)	(285,670)
Other Current Assets and Liabilities, Net	(100,835)	(67,961)
Net Cash Flows Provided by Operating Activities	841,819	807,445
Investing Activities:
Investments in Property, Plant and Equipment	(1,549,081)	(1,423,223)
Other Investing Activities	10,771	12,661
Net Cash Flows Used in Investing Activities	(1,799,055)	(1,497,976)
Financing Activities:
Cash Dividends on Common Shares	(427,931)	(402,211)
Cash Dividends on Preferred Stock	(3,759)	(3,759)
Issuance of Long-Term Debt	3,350,000	1,525,000
Retirement of Long-Term Debt	(770,000)	(1,022,000)
(Decrease)/Increase in Notes Payable	(1,317,950)	753,175
Other Financing Activities	(42,133)	(35,008)
Net Cash Flows Provided by/(Used in) Financing Activities	892,904	793,592
Net (Decrease)/Increase in Cash and Restricted Cash	(64,332)	103,061
Cash and Restricted Cash - Beginning of Period	221,008	264,950
Cash and Restricted Cash - End of Period	156,676	368,011
NSTAR Electric
Operating Activities:
Net Income	212,177	204,836
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	178,734	166,710
Deferred Income Taxes	42,476	28,742
Uncollectible Expense	8,688	7,394
Pension, SERP and PBOP Expense, Net of Contributions	(27,750)	(12,990)
Pension and PBOP Contributions	(10,000)	(10,000)
Regulatory (Under)/Over Recoveries, Net	(106,074)	(12,562)
Amortization of Regulatory Assets/(Liabilities), Net	49,367	15,890
Cost of Removal Expenditures	(26,337)	(26,968)
Payment of Withheld Property Taxes	(76,084)	0
Other	(24,635)	(13,347)
Changes in Current Assets and Liabilities:
Accounts Receivables from Subsidiaries	35,107	(49,324)
Taxes Receivable/Accrued, Net	58,289	57,584
Accounts Payable	(98,187)	(88,729)
Other Current Assets and Liabilities, Net	(18,644)	(21,349)
Net Cash Flows Provided by Operating Activities	197,127	245,887
Investing Activities:
Investments in Property, Plant and Equipment	(443,978)	(426,053)
Other Investing Activities	118	43
Net Cash Flows Used in Investing Activities	(443,860)	(426,010)
Financing Activities:
Cash Dividends on Common Shares	(143,800)	(283,200)
Cash Dividends on Preferred Stock	(980)	(980)
Issuance of Long-Term Debt	450,000	300,000
Retirement of Long-Term Debt	0	(250,000)
Capital Contributions from Eversource Parent	50,000	60,000
Increase in Notes Payable to Eversource Parent	3,200	200
(Decrease)/Increase in Notes Payable	(99,500)	360,500
Other Financing Activities	(7,642)	(5,909)
Net Cash Flows Provided by/(Used in) Financing Activities	251,278	180,611
Net (Decrease)/Increase in Cash and Restricted Cash	4,545	488
Cash and Restricted Cash - Beginning of Period	18,179	17,410
Cash and Restricted Cash - End of Period	$ 22,724	$ 17,898