Consolidated Balance Sheets (Unaudited) - PHI - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 300	$ 407
Restricted cash and cash equivalents	435	566
Accounts receivable
Customer accounts receivable	2,575	2,544
Customer allowance for credit losses	(341)	(327)
Customer accounts receivable, net	2,234	2,217
Other accounts receivable	1,168	1,426
Other allowance for credit losses	(88)	(82)
Other accounts receivable, net	1,080	1,344
Inventories, net
Fossil fuel	105	208
Materials and supplies	657	547
Regulatory assets	2,307	1,641
Other	401	406
Total current assets	7,519	7,336
Property, plant and equipment, net	72,458	69,076
Deferred debits and other assets
Regulatory assets	8,128	8,037
Goodwill	6,630	6,630
Investments	246	232
Other	1,355	1,141
Total deferred debits and other assets	19,282	18,937
Total assets	99,259	95,349
Current liabilities
Short-term borrowings	1,720	2,586
Long-term debt due within one year	1,654	1,802
Accrued expenses	1,315	1,226
Regulatory liabilities	437	437
Unamortized energy contract liabilities	8	10
Other	933	1,155
Total current liabilities	8,800	10,611
Long-term debt	39,431	35,272
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits	11,792	11,250
Regulatory liabilities	9,236	9,112
Asset retirement obligations	269	269
Non-pension postretirement benefit obligations	515	507
Unamortized energy contract liabilities	29	35
Other	2,129	1,967
Total deferred credits and other liabilities	25,168	24,332
Total liabilities	73,789	70,605
Commitments and contingencies
Members' Equity [Abstract]
Retained earnings	5,233	4,597
Total liabilities and shareholders’ equity	99,259	95,349
Related Party
Current liabilities
Accounts payable	5	5
Nonrelated Party
Current liabilities
Accounts payable	2,684	3,382
Pepco Holdings LLC
Current assets
Cash and cash equivalents	121	198
Restricted cash and cash equivalents	25	175
Accounts receivable
Customer accounts receivable	828	734
Customer allowance for credit losses	(118)	(109)
Customer accounts receivable, net	710	625
Other accounts receivable	331	300
Other allowance for credit losses	(51)	(46)
Other accounts receivable, net	280	254
Inventories, net
Fossil fuel	9	18
Materials and supplies	267	236
Regulatory assets	366	455
Other	77	96
Total current assets	1,858	2,059
Property, plant and equipment, net	18,577	17,686
Deferred debits and other assets
Regulatory assets	1,568	1,610
Goodwill	4,005	4,005
Investments	143	138
Prepaid pension asset	289	353
Total deferred debits and other assets	6,221	6,337
Total assets	26,656	26,082
Current liabilities
Short-term borrowings	173	414
Long-term debt due within one year	1,146	591
Accrued expenses	324	260
Customer deposits	98	88
Regulatory liabilities	87	76
Unamortized energy contract liabilities	8	10
PPA termination obligation	61	87
Total current liabilities	2,810	2,737
Long-term debt	7,491	7,529
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits	3,023	2,895
Regulatory liabilities	924	1,011
Asset retirement obligations	54	59
Non-pension postretirement benefit obligations	45	50
Unamortized energy contract liabilities	29	35
Other	495	536
Total deferred credits and other liabilities	4,570	4,586
Total liabilities	14,871	14,852
Commitments and contingencies
Members' Equity [Abstract]
Membership interest	12,057	11,582
Retained earnings	(272)	(352)
Total members' equity	11,785	11,230
Total liabilities and shareholders’ equity	26,656	26,082
Pepco Holdings LLC | Related Party
Accounts receivable
Receivables from affiliates	3	2
Current liabilities
Accounts payable	59	66
Other	61	44
Pepco Holdings LLC | Nonrelated Party
Deferred debits and other assets
Other	216	231
Current liabilities
Accounts payable	664	771
Other	$ 129	$ 330