Balance Sheets (Unaudited) - Pepco - 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
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
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
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
Pension obligations	1,085	1,109
Non-pension postretirement benefit obligations	515	507
Mark-to-market derivative liabilities	113	83
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
Shareholders’ equity
Common stock	20,956	20,908
Retained earnings	5,233	4,597
Total shareholders’ equity	25,470	24,744
Members' Equity [Abstract]
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
Potomac Electric Power Company
Current assets
Cash and cash equivalents	31	45
Restricted cash and cash equivalents	25	54
Accounts receivable
Customer accounts receivable	414	351
Customer allowance for credit losses	(56)	(47)
Customer accounts receivable, net	358	304
Other accounts receivable	189	180
Other allowance for credit losses	(29)	(25)
Other accounts receivable, net	160	155
Inventories, net
Inventories, net	147	135
Regulatory assets	187	235
Other	16	53
Total current assets	931	981
Property, plant and equipment, net	9,274	8,794
Deferred debits and other assets
Regulatory assets	422	437
Investments	124	119
Prepaid pension asset	252	273
Total deferred debits and other assets	856	882
Total assets	11,061	10,657
Current liabilities
Short-term borrowings	0	299
Long-term debt due within one year	405	4
Accrued expenses	163	125
Customer deposits	45	39
Regulatory liabilities	24	6
Merger related obligation	26	26
Total current liabilities	1,090	1,008
Long-term debt	3,690	3,747
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits	1,456	1,382
Regulatory liabilities	394	455
Asset retirement obligations	36	39
Other	256	244
Total deferred credits and other liabilities	2,142	2,120
Total liabilities	6,922	6,875
Commitments and contingencies
Shareholders’ equity
Common stock	3,075	2,767
Retained earnings	1,064	1,015
Total shareholders’ equity	4,139	3,782
Members' Equity [Abstract]
Total liabilities and shareholders’ equity	11,061	10,657
Potomac Electric Power Company | Related Party
Accounts receivable
Receivables from affiliates	0	0
Receivable from Exelon/PHI intercompany money pool	7	0
Current liabilities
Accounts payable	32	34
Potomac Electric Power Company | Nonrelated Party
Deferred debits and other assets
Other	58	53
Current liabilities
Accounts payable	346	382
Other	$ 49	$ 93