Statements of Operations and Comprehensive Income - Pepco - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating revenues
Revenues from alternative revenue programs	$ 696	$ 161	$ 171
Total operating revenues	21,727	19,078	17,938
Operating expenses
Operating and maintenance	4,559	4,673	4,547
Depreciation and amortization	3,506	3,325	3,033
Taxes other than income taxes	1,408	1,390	1,291
Total operating expenses	17,714	15,761	15,256
Gain (loss) on sale of assets and businesses	10	(2)	0
Operating income	4,023	3,315	2,682
Other income and (deductions)
Interest expense, net	(1,704)	(1,422)	(1,264)
Other, net	408	535	261
Total other income and (deductions)	(1,321)	(912)	(1,028)
Income before income taxes	2,702	2,403	1,654
Income taxes	374	349	38
Net income	2,328	2,171	1,829
Comprehensive income	2,240	2,260	2,479
Related Party
Operating expenses
Purchased power and/or fuel from affiliates	0	159	1,178
Potomac Electric Power Company
Operating revenues
Revenues from alternative revenue programs	22	(31)	53
Operating revenues from affiliates	9	5	5
Total operating revenues	2,824	2,531	2,274
Operating expenses
Operating and maintenance	336	284	258
Depreciation and amortization	441	417	403
Taxes other than income taxes	390	382	373
Total operating expenses	2,377	2,140	1,871
Gain (loss) on sale of assets and businesses	9	0	0
Operating income	456	391	403
Other income and (deductions)
Interest expense, net	(165)	(150)	(140)
Other, net	66	55	48
Total other income and (deductions)	(99)	(95)	(92)
Income before income taxes	357	296	311
Income taxes	51	(9)	15
Net income	306	305	296
Comprehensive income	306	305	296
Potomac Electric Power Company | Related Party
Operating revenues
Operating revenues from affiliates	9	5	5
Operating expenses
Purchased power and/or fuel from affiliates	0	39	271
Operating and maintenance from affiliates	236	223	213
Electricity, US Regulated
Operating revenues
Operating revenues	19,267	16,899	16,245
Operating expenses
Purchased power and/or fuel	7,648	5,380	4,703
Electricity, US Regulated | Potomac Electric Power Company
Operating revenues
Operating revenues	2,793	2,557	2,216
Operating expenses
Purchased power and/or fuel	974	795	353
Natural Gas, US Regulated
Operating revenues
Operating revenues	1,764	2,018	1,522
Operating expenses
Purchased power and/or fuel	$ 593	$ 834	$ 504