Consolidated Statements of Operations and Comprehensive Income - PECO - 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
Other income and (deductions)
Interest expense to affiliates, net	25	25	25
PECO Energy Co
Operating revenues
Revenues from alternative revenue programs	(7)	2	26
Total operating revenues	3,894	3,903	3,198
Operating expenses
Operating and maintenance	786	791	757
Depreciation and amortization	397	373	348
Taxes other than income taxes	202	202	184
Total operating expenses	3,146	3,102	2,547
Operating income	748	801	651
Other income and (deductions)
Interest expense, net	(192)	(165)	(149)
Other, net	36	31	26
Total other income and (deductions)	(165)	(146)	(135)
Income before income taxes	583	655	516
Income taxes	20	79	12
Net income	563	576	504
Comprehensive income	563	576	504
PECO Energy Co | Related Party
Operating revenues
Operating revenues from affiliates	9	7	21
Operating expenses
Purchased power and/or fuel from affiliates	0	33	194
Operating and maintenance from affiliates	217	201	177
Other income and (deductions)
Interest expense to affiliates, net	9	12	12
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 | PECO Energy Co
Operating revenues
Operating revenues	3,202	3,156	2,613
Operating expenses
Purchased power and/or fuel	1,270	1,160	699
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 | PECO Energy Co
Operating revenues
Operating revenues	690	738	538
Operating expenses
Purchased power and/or fuel	$ 274	$ 342	$ 188