PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Activities:
Net Income	$ 1,412,394	$ 1,228,046	$ 1,212,686
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	1,194,246	1,103,008	981,380
Deferred Income Taxes	346,779	347,056	257,154
Uncollectible Expense	61,876	60,886	53,461
Pension, SERP and PBOP Income, Net	(160,857)	(14,693)	12,888
Pension Contributions	(83,148)	(182,344)	(111,524)
Regulatory Over/(Under) Recoveries, Net	(205,294)	(314,211)	(516,411)
Cost of Removal Expenditures	(303,755)	(242,130)	(148,332)
Other	(39,192)	(64,640)	(25,957)
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	(470,593)	(135,505)	(351,843)
Taxes Receivable/Accrued, Net	18,358	(110,621)	43,819
Accounts Payable	377,657	(29,201)	122,567
Other Current Assets and Liabilities, Net	(45,583)	3,710	(24,995)
Net Cash Flows Provided by Operating Activities	2,401,293	1,962,600	1,682,572
Investing Activities:
Investments in Property, Plant and Equipment	(3,441,852)	(3,175,080)	(2,942,996)
Other Investing Activities	20,420	22,178	23,809
Net Cash Flows Used in Investing Activities	(4,130,490)	(3,447,374)	(4,129,275)
Financing Activities:
Cash Dividends on Common Shares	(860,033)	(805,439)	(744,665)
Increase (Decrease) in Notes Payable to Eversource Parent	78,170	(256,125)	(13,955)
Issuance of Long-Term Debt	4,045,000	3,230,000	2,760,000
Retirement of Long-Term Debt	(1,175,000)	(1,142,500)	(327,236)
Repayment of Rate Reduction Bonds	(43,210)	(43,210)	(43,210)
Other Financing Activities	(48,185)	(46,625)	14,273
Net Cash Flows Provided by Financing Activities	2,029,941	1,440,832	2,594,590
Net Increase/(Decrease) in Cash, Cash Equivalents and Restricted Cash	300,744	(43,942)	147,887
Cash, Cash Equivalents and Restricted Cash - Beginning of Year	221,008	264,950	117,063
Cash, Cash Equivalents and Restricted Cash - End of Year	521,752	221,008	264,950
PSNH
Operating Activities:
Net Income	171,570	150,338	147,312
Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities:
Depreciation	127,962	120,065	100,372
Deferred Income Taxes	15,765	(14,530)	7,337
Uncollectible Expense	9,211	13,113	5,164
Pension, SERP and PBOP Income, Net	(16,421)	(3,296)	(1,255)
Pension Contributions	0	0	(19,500)
Regulatory Over/(Under) Recoveries, Net	53,181	32,587	(45,830)
Amortization of Regulatory Assets, Net	42,867	86,832	52,804
Cost of Removal Expenditures	(39,895)	(30,804)	(22,063)
Other	8,691	(1,370)	17,221
Changes in Current Assets and Liabilities:
Receivables and Unbilled Revenues, Net	(62,078)	(32,003)	(33,612)
Taxes Receivable/Accrued, Net	(23,492)	3,952	(6,942)
Accounts Payable	81,046	(3,256)	27,270
Other Current Assets and Liabilities, Net	(6,908)	14,454	(9,610)
Net Cash Flows Provided by Operating Activities	361,499	336,082	218,668
Investing Activities:
Investments in Property, Plant and Equipment	(485,611)	(326,379)	(342,586)
Other Investing Activities	1,013	562	982
Net Cash Flows Used in Investing Activities	(484,598)	(325,817)	(341,604)
Financing Activities:
Cash Dividends on Common Shares	(104,000)	(260,800)	(22,300)
Increase (Decrease) in Notes Payable to Eversource Parent	62,700	64,300	19,300
Issuance of Long-Term Debt	0	350,000	150,000
Retirement of Long-Term Debt	0	(282,000)	0
Repayment of Rate Reduction Bonds	(43,210)	(43,210)	(43,210)
Capital Contributions from Eversource Parent	210,000	160,000	25,000
Other Financing Activities	(705)	(2,984)	(2,987)
Net Cash Flows Provided by Financing Activities	124,785	(14,694)	125,803
Net Increase/(Decrease) in Cash, Cash Equivalents and Restricted Cash	1,686	(4,429)	2,867
Cash, Cash Equivalents and Restricted Cash - Beginning of Year	35,126	39,555	36,688
Cash, Cash Equivalents and Restricted Cash - End of Year	$ 36,812	$ 35,126	$ 39,555