NSTAR ELECTRIC COMPANY AND SUBSIDIARY CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating Activities:
Net Income	$ 510,340	$ 739,068
Adjustments to Reconcile Net Income to Net Cash Flows (Used In)/Provided by Operating Activities:
Depreciation	632,949	583,568
Deferred Income Taxes	155,035	126,970
Uncollectible Expense	24,171	30,032
Pension, SERP and PBOP Income, Net	(46,600)	(80,404)
Pension Contributions	(2,400)	(52,400)
Regulatory Under Recoveries, Net	(112,050)	(226,238)
Cost of Removal Expenditures	(183,552)	(169,863)
Other	(13,423)	2,530
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	137,819	(176,132)
Taxes Receivable/Accrued, Net	49,201	85,071
Accounts Payable	(489,132)	(83,550)
Other Current Assets and Liabilities, Net	(121,600)	(100,835)
Net Cash Flows (Used In)/Provided by Operating Activities	647,277	841,819
Investing Activities:
Investments in Property, Plant and Equipment	(2,039,512)	(1,549,081)
Other Investing Activities	11,055	10,771
Net Cash Flows Used in Investing Activities	(2,397,675)	(1,799,055)
Financing Activities:
Cash Dividends on Common Shares	(458,959)	(427,931)
Cash Dividends on Preferred Stock	(3,759)	(3,759)
Issuance of Long-Term Debt	3,361,000	3,350,000
Increase/(Decrease) in Notes Payable to Eversource Parent	(589,200)	(1,317,950)
Other Financing Activities	(27,839)	(42,133)
Net Cash Flows Provided by Financing Activities	1,406,638	892,904
Net Decrease in Cash, Cash Equivalents and Restricted Cash	(343,760)	(64,332)
Cash, Cash Equivalents and Restricted Cash - Beginning of Period	521,752	221,008
Cash and Restricted Cash - End of Period	177,992	156,676
NSTAR Electric
Operating Activities:
Net Income	268,556	212,177
Adjustments to Reconcile Net Income to Net Cash Flows (Used In)/Provided by Operating Activities:
Depreciation	183,292	178,734
Deferred Income Taxes	66,926	42,476
Uncollectible Expense	7,759	8,688
Pension, SERP and PBOP Income, Net	(20,460)	(27,750)
Pension Contributions	0	(10,000)
Regulatory Under Recoveries, Net	(126,487)	(106,074)
Amortization of Regulatory (Liabilities)/Assets, Net	21,385	49,367
Cost of Removal Expenditures	(33,750)	(26,337)
Payment in 2022 of Withheld Property Taxes	0	(76,084)
Other	(12,211)	(24,635)
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	(9,745)	35,107
Taxes Receivable/Accrued, Net	28,662	58,289
Accounts Payable	(68,720)	(98,187)
Other Current Assets and Liabilities, Net	(71,745)	(18,644)
Net Cash Flows (Used In)/Provided by Operating Activities	233,462	197,127
Investing Activities:
Investments in Property, Plant and Equipment	(677,596)	(443,978)
Other Investing Activities	48	118
Net Cash Flows Used in Investing Activities	(677,548)	(443,860)
Financing Activities:
Cash Dividends on Common Shares	(327,400)	(143,800)
Cash Dividends on Preferred Stock	(980)	(980)
Issuance of Long-Term Debt	0	450,000
Capital Contributions from Eversource Parent	112,300	50,000
Increase/(Decrease) in Notes Payable to Eversource Parent	0	3,200
Increase/(Decrease) in Notes Payable	324,000	(99,500)
Other Financing Activities	8	(7,642)
Net Cash Flows Provided by Financing Activities	107,928	251,278
Net Decrease in Cash, Cash Equivalents and Restricted Cash	(336,158)	4,545
Cash, Cash Equivalents and Restricted Cash - Beginning of Period	345,293	18,179
Cash and Restricted Cash - End of Period	$ 9,135	$ 22,724