Consolidated Statement of Changes in Shareholders Equity - ACE - USD ($) $ in Millions	Total	Retained Earnings	Atlantic City Electric Company	Atlantic City Electric Company Common Stock	Atlantic City Electric Company Retained Earnings
Beginning Balance at Dec. 31, 2020			$ 1,398	$ 1,271	$ 127
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 1,829	$ 1,706	146		146
Common stock dividends	(1,499)	(1,499)	(288)		(288)
Contributions from parent			319	319
Ending Balance at Dec. 31, 2021			1,575	1,590	(15)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,171	2,170	148		148
Common stock dividends	(1,336)	(1,336)	(145)		(145)
Contributions from parent			175	175
Ending Balance at Dec. 31, 2022	24,744		1,753	1,765	(12)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,328	2,328	120		120
Common stock dividends	(1,435)	$ (1,435)	(126)		(126)
Contributions from parent			65	65
Ending Balance at Dec. 31, 2023	$ 25,755		$ 1,812	$ 1,830	$ (18)