Statements of Operations and Comprehensive Income - DPL - 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
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
Delmarva Power & Light Company
Operating revenues
Revenues from alternative revenue programs	15	(9)	14
Operating revenues from affiliates	8	6	7
Total operating revenues	1,688	1,595	1,380
Operating expenses
Operating and maintenance	193	183	183
Depreciation and amortization	244	232	210
Taxes other than income taxes	75	72	67
Total operating expenses	1,420	1,359	1,161
Operating income	268	236	219
Other income and (deductions)
Interest expense, net	(74)	(66)	(61)
Other, net	18	13	12
Total other income and (deductions)	(56)	(53)	(49)
Income before income taxes	212	183	170
Income taxes	35	14	42
Net income	177	169	128
Comprehensive income	177	169	128
Delmarva Power & Light Company | Related Party
Operating revenues
Operating revenues from affiliates	8	6	7
Operating expenses
Purchased power and/or fuel from affiliates	0	10	79
Operating and maintenance from affiliates	171	166	162
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 | Delmarva Power & Light Company
Operating revenues
Operating revenues	1,460	1,360	1,191
Operating expenses
Purchased power and/or fuel	639	567	387
Natural Gas, US Regulated
Operating revenues
Operating revenues	1,764	2,018	1,522
Operating expenses
Purchased power and/or fuel	593	834	504
Natural Gas, US Regulated | Delmarva Power & Light Company
Operating revenues
Operating revenues	205	238	168
Operating expenses
Purchased power and/or fuel	$ 98	$ 129	$ 73