Consolidated Balance Sheets (Unaudited) - PHI - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 720	$ 445
Restricted cash and cash equivalents	489	482
Accounts receivable
Customer accounts receivable	2,896	2,659
Customer allowance for credit losses	(346)	(317)
Customer accounts receivable, net	2,550	2,342
Other accounts receivable	1,131	1,101
Other allowance for credit losses	(96)	(82)
Other accounts receivable, net	1,035	1,019
Inventories, net
Fossil fuel	37	94
Materials and supplies	751	707
Regulatory assets	2,035	2,215
Other	595	473
Total current assets	8,212	7,777
Property, plant and equipment, net	74,604	73,593
Deferred debits and other assets
Regulatory assets	8,701	8,698
Goodwill	6,630	6,630
Investments	263	251
Other	1,419	1,365
Total deferred debits and other assets	20,395	20,176
Total assets	103,211	101,546
Current liabilities
Short-term borrowings	2,206	2,523
Long-term debt due within one year	503	1,403
Accrued expenses	1,076	1,375
Customer deposits	419	411
Regulatory liabilities	400	389
Unamortized energy contract liabilities	7	8
Other	516	557
Total current liabilities	7,975	9,591
Long-term debt	42,271	39,692
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits	12,199	11,956
Regulatory liabilities	9,706	9,576
Asset retirement obligations	270	267
Non-pension postretirement benefit obligations	523	527
Unamortized energy contract liabilities	25	27
Other	2,142	2,088
Total deferred credits and other liabilities	26,514	26,118
Total liabilities	77,150	75,791
Commitments and contingencies
Members' Equity [Abstract]
Retained earnings	5,767	5,490
Total liabilities and shareholders’ equity	103,211	101,546
Related Party
Current liabilities
Accounts payable	5	5
Nonrelated Party
Current liabilities
Accounts payable	2,814	2,846
Pepco Holdings LLC
Current assets
Cash and cash equivalents	504	180
Restricted cash and cash equivalents	23	24
Accounts receivable
Customer accounts receivable	714	745
Customer allowance for credit losses	(105)	(107)
Customer accounts receivable, net	609	638
Other accounts receivable	321	310
Other allowance for credit losses	(57)	(50)
Other accounts receivable, net	264	260
Inventories, net
Fossil fuel	3	9
Materials and supplies	304	287
Regulatory assets	342	337
Other	82	100
Total current assets	2,135	1,838
Property, plant and equipment, net	19,121	18,851
Deferred debits and other assets
Regulatory assets	1,606	1,587
Goodwill	4,005	4,005
Investments	145	143
Prepaid pension asset	314	268
Total deferred debits and other assets	6,279	6,214
Total assets	27,535	26,903
Current liabilities
Short-term borrowings	0	394
Long-term debt due within one year	244	644
Accrued expenses	344	338
Customer deposits	104	100
Regulatory liabilities	89	71
Unamortized energy contract liabilities	7	8
PPA termination obligation	31	49
Total current liabilities	1,728	2,549
Long-term debt	8,909	8,004
Deferred credits and other liabilities
Deferred income taxes and unamortized investment tax credits	3,071	3,031
Regulatory liabilities	878	904
Asset retirement obligations	56	55
Non-pension postretirement benefit obligations	37	40
Unamortized energy contract liabilities	25	27
Other	512	511
Total deferred credits and other liabilities	4,579	4,568
Total liabilities	15,216	15,121
Commitments and contingencies
Members' Equity [Abstract]
Membership interest	12,544	12,057
Retained earnings	(225)	(275)
Total members' equity	12,319	11,782
Total liabilities and shareholders’ equity	27,535	26,903
Pepco Holdings LLC | Related Party
Accounts receivable
Receivables from affiliates	4	3
Current liabilities
Accounts payable	60	59
Other	73	65
Pepco Holdings LLC | Nonrelated Party
Deferred debits and other assets
Other	209	211
Current liabilities
Accounts payable	668	683
Other	$ 108	$ 138