Consolidated Statements of Operations and Comprehensive Income - PHI - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating revenues
Revenues from alternative revenue programs	$ (92)	$ 696	$ 161
Total operating revenues	23,028	21,727	19,078
Operating expenses
Operating and maintenance	4,940	4,559	4,673
Depreciation and amortization	3,594	3,506	3,325
Taxes other than income taxes	1,504	1,408	1,390
Total operating expenses	18,721	17,714	15,761
Gain (loss) on sale of assets and businesses	12	10	(2)
Operating income	4,319	4,023	3,315
Other income and (deductions)
Interest expense, net	(1,889)	(1,704)	(1,422)
Other, net	262	408	535
Total other income and (deductions)	(1,652)	(1,321)	(912)
Income before income taxes	2,667	2,702	2,403
Income taxes	207	374	349
Net income	2,460	2,328	2,171
Comprehensive income	2,466	2,240	2,259
Related Party
Operating expenses
Purchased power from affiliates	0	0	159
Other income and (deductions)
Interest expense to affiliates, net	(25)	(25)	(25)
Pepco Holdings LLC
Operating revenues
Revenues from alternative revenue programs	1	64	(59)
Operating revenues from affiliates	10	9	10
Total operating revenues	6,448	6,026	5,565
Operating expenses
Operating and maintenance	1,046	1,110	966
Depreciation and amortization	947	990	938
Taxes other than income taxes	528	487	475
Total operating expenses	5,238	5,114	4,734
Gain (loss) on sale of assets and businesses	(1)	9	0
Operating income	1,209	921	831
Other income and (deductions)
Interest expense, net	(373)	(323)	(292)
Other, net	97	108	78
Total other income and (deductions)	(279)	(215)	(214)
Income before income taxes	930	706	617
Income taxes	189	116	9
Net income	741	590	608
Comprehensive income	741	590	608
Pepco Holdings LLC | Related Party
Operating revenues
Operating revenues from affiliates	10	9	10
Operating expenses
Purchased power from affiliates	0	0	51
Operating and maintenance from affiliates	204	179	191
Other income and (deductions)
Interest expense to affiliates, net	(3)	0	0
Electricity, US Regulated
Operating revenues
Operating revenues	21,338	19,267	16,899
Operating expenses
Purchased power and/or fuel	8,214	7,648	5,380
Electricity, US Regulated | Pepco Holdings LLC
Operating revenues
Operating revenues	6,257	5,748	5,376
Operating expenses
Purchased power and/or fuel	2,447	2,250	1,984
Natural Gas, US Regulated
Operating revenues
Operating revenues	1,782	1,764	2,018
Operating expenses
Purchased power and/or fuel	469	593	834
Natural Gas, US Regulated | Pepco Holdings LLC
Operating revenues
Operating revenues	180	205	238
Operating expenses
Purchased power and/or fuel	$ 66	$ 98	$ 129