NSTAR ELECTRIC COMPANY AND SUBSIDIARY CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current Assets:
Cash	$ 78,813	$ 47,597
Cash Equivalents	0	327,006
Receivables, Net (net of allowance for uncollectible accounts)	1,430,183	1,517,138
Unbilled Revenues	171,934	238,968
Materials, Supplies and REC Inventory	445,810	374,395
Regulatory Assets	1,507,888	1,335,491
Prepayments and Other Current Assets	374,471	382,603
Total Current Assets	4,009,099	4,223,198
Property, Plant and Equipment, Net	38,518,294	36,112,820
Deferred Debits and Other Assets:
Regulatory Assets	4,348,700	4,242,794
Prepaid Pension and PBOP	1,238,512	1,045,524
Other Long-Term Assets	597,305	541,344
Total Deferred Debits and Other Assets	13,765,950	12,894,882
Total Assets	56,293,343	53,230,900
Current Liabilities:
Notes Payable	1,529,800	1,442,200
Long-Term Debt – Current Portion	2,071,862	1,320,129
Accounts Payable	1,642,181	2,113,905
Regulatory Liabilities	724,413	890,786
Other Current Liabilities	1,108,178	989,053
Total Current Liabilities	7,119,644	6,799,283
Deferred Credits and Other Liabilities:
Accumulated Deferred Income Taxes	5,238,623	5,067,902
Regulatory Liabilities	4,021,830	3,930,305
Other Long-Term Liabilities	908,731	888,081
Total Deferred Credits and Other Liabilities	10,877,639	10,668,403
Long-Term Debt	22,087,267	19,723,994
Preferred Stock Not Subject to Mandatory Redemption	155,570	155,570
Common Shareholders' Equity:
Capital Surplus, Paid In	8,443,820	8,401,731
Retained Earnings	5,666,861	5,527,153
Accumulated Other Comprehensive Income	(24,022)	(39,421)
Common Shareholders' Equity	15,685,941	15,473,158
Commitments and Contingencies
Total Liabilities and Capitalization	56,293,343	53,230,900
NSTAR Electric Company
Current Assets:
Cash	5,991	738
Cash Equivalents	0	327,006
Unbilled Revenues	46,878	39,680
Materials, Supplies and REC Inventory	140,470	138,352
Regulatory Assets	638,464	492,759
Prepayments and Other Current Assets	73,571	71,276
Total Current Assets	1,478,357	1,558,378
Property, Plant and Equipment, Net	12,409,156	11,626,968
Deferred Debits and Other Assets:
Regulatory Assets	1,190,138	1,221,619
Prepaid Pension and PBOP	646,640	576,809
Other Long-Term Assets	119,884	111,846
Total Deferred Debits and Other Assets	1,956,662	1,910,274
Total Assets	15,844,175	15,095,620
Current Liabilities:
Notes Payable	209,500	0
Long-Term Debt – Current Portion	80,000	80,000
Obligations to Third Party Suppliers	166,995	142,628
Renewable Portfolio Standards Compliance Obligations	88,938	120,239
Regulatory Liabilities	416,046	373,221
Other Current Liabilities	98,907	83,925
Total Current Liabilities	1,671,769	1,468,596
Deferred Credits and Other Liabilities:
Accumulated Deferred Income Taxes	1,812,533	1,700,875
Regulatory Liabilities	1,587,567	1,548,081
Other Long-Term Liabilities	304,228	289,313
Total Deferred Credits and Other Liabilities	3,704,328	3,538,269
Long-Term Debt	4,496,484	4,345,085
Preferred Stock Not Subject to Mandatory Redemption	43,000	43,000
Common Shareholders' Equity:
Common Shares	0	0
Capital Surplus, Paid In	2,902,542	2,778,942
Retained Earnings	3,025,841	2,921,444
Accumulated Other Comprehensive Income	211	284
Common Shareholders' Equity	5,928,594	5,700,670
Commitments and Contingencies
Total Liabilities and Capitalization	15,844,175	15,095,620
NSTAR Electric Company | Nonrelated Party
Current Assets:
Receivables, Net (net of allowance for uncollectible accounts)	523,997	453,371
Current Liabilities:
Accounts Payable	497,660	559,676
NSTAR Electric Company | Related Party
Current Assets:
Receivables, Net (net of allowance for uncollectible accounts)	48,986	35,196
Current Liabilities:
Accounts Payable	$ 113,723	$ 108,907