Consolidated Statement of Changes in Shareholders Equity - PECO - USD ($) $ in Millions	Total	Retained Earnings	PECO Energy Co	PECO Energy Co Common Stock	PECO Energy Co Retained Earnings
Beginning Balance at Dec. 31, 2020			$ 4,533	$ 3,014	$ 1,519
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 1,829	$ 1,706	504		504
Common stock dividends	(1,499)	(1,499)	(339)		(339)
Contributions from parent			414	414
Ending Balance at Dec. 31, 2021			5,112	3,428	1,684
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,171	2,170	576		576
Common stock dividends	(1,336)	(1,336)	(399)		(399)
Contributions from parent			274	274
Ending Balance at Dec. 31, 2022	24,744		5,563	3,702	1,861
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,328	2,328	563		563
Common stock dividends	(1,435)	$ (1,435)	(405)		(405)
Contributions from parent			348	348
Ending Balance at Dec. 31, 2023	$ 25,755		$ 6,069	$ 4,050	$ 2,019