Consolidated Statements of Operations and Comprehensive Income (Unaudited) - Exelon - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Operating revenues
Revenues from alternative revenue programs	$ 108	$ 64	$ 513	$ 92
Total operating revenues	5,980	4,845	16,360	14,412
Operating expenses
Operating and maintenance	1,187	1,148	3,535	3,436
Depreciation and amortization	890	825	2,616	2,472
Taxes other than income taxes	383	377	1,063	1,061
Total operating expenses	4,857	3,834	13,429	11,804
Gain (loss) on sale of assets and businesses	0	0	0	(2)
Operating income	1,123	1,011	2,931	2,606
Other income and (deductions)
Interest expense, net	(431)	(359)	(1,259)	(1,044)
Other, net	81	122	331	435
Total other income and (deductions)	(356)	(243)	(946)	(628)
Income (Loss) before income taxes	767	768	1,985	1,978
Income taxes	67	92	274	356
Net income from continuing operations after income taxes	700	676	1,711	1,622
Net income from discontinued operations after income taxes (Note 2)	0	0	0	117
Net income	700	676	1,711	1,739
Net income attributable to noncontrolling interests	0	0	0	1
Net income attributable to common shareholders	700	676	1,711	1,738
Net income from continuing operations	700	676	1,711	1,622
Net income from discontinued operations	0	0	0	116
Other comprehensive income, net of income taxes
Actuarial losses reclassified to periodic benefit cost	16	9	22	33
Pension and non-pension postretirement benefit plans valuation adjustments	(3)	0	(16)	2
Unrealized gains on cash flow hedges	21	0	36	0
Other comprehensive income	34	9	42	35
Comprehensive income	734	685	1,753	1,774
Comprehensive income attributable to noncontrolling interests	0	0	0	1
Comprehensive income attributable to common shareholders/membership interest	$ 734	$ 685	$ 1,753	$ 1,773
Average shares of common stock outstanding:
Basic average shares of common stock outstanding (in shares)	996	988	996	983
Assumed exercise and/or distributions of stock-based awards (in shares)	1	1	0	1
Diluted average shares of common stock outstanding (in shares)	997	989	996	984
Earnings Per Share [Abstract]
Income (Loss) from Continuing Operations, Per Basic Share (in dollars per share)	$ 0.70	$ 0.68	$ 1.72	$ 1.65
Income (Loss) from Continuing Operations, Per Diluted Share (in dollars per share)	0.70	0.68	1.72	1.65
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share (in dollars per share)	0	0	0	0.12
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share (in dollars per share)	$ 0	$ 0	$ 0	$ 0.12
Related Party
Operating expenses
Purchased power and fuel from affiliates	$ 0	$ 0	$ 0	$ 159
Other income and (deductions)
Interest expense to affiliates	(6)	(6)	(18)	(19)
Electricity, US Regulated
Operating revenues
Electric operating revenues	5,684	4,557	14,579	12,972
Operating expenses
Purchased power and/or fuel	2,364	1,404	5,766	4,152
Natural Gas, US Regulated
Operating revenues
Electric operating revenues	188	224	1,268	1,348
Operating expenses
Purchased power and/or fuel	$ 33	$ 80	$ 449	$ 524