Consolidated Statements of Cash Flows - Exelon - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities
Net income	$ 2,460	$ 2,328	$ 2,171
Adjustments to reconcile net income to net cash flows used in operating activities:
Depreciation and amortization	3,596	3,506	3,533
Asset impairments	0	0	48
Gain on sales of assets and businesses	(12)	(10)	(8)
Deferred income taxes and amortization of investment tax credits	128	319	255
Net fair value changes related to derivatives	0	22	(53)
Net realized and unrealized gains on NDT fund investments	0	0	205
Net unrealized losses (gains) on equity investments	0	0	16
Other non-cash operating activities	592	(335)	370
Changes in assets and liabilities:
Accounts receivable	(644)	(37)	(1,222)
Inventories	(56)	(45)	(121)
Accounts payable and accrued expenses	(37)	(191)	1,318
Option premiums paid, net	0	0	(39)
Collateral (paid) received, net	33	(146)	1,248
Income taxes	(4)	48	(4)
Regulatory assets and liabilities, net	(50)	(439)	(1,326)
Pension and non-pension postretirement benefit contributions	(180)	(129)	(616)
Other assets and liabilities	(257)	(188)	(905)
Net cash flows provided by operating activities	5,569	4,703	4,870
Cash flows from investing activities
Capital expenditures	(7,097)	(7,408)	(7,147)
Proceeds from NDT fund sales	0	0	488
Investment in NDT funds	0	0	(516)
Collection of DPP	0	0	169
Proceeds from sales of assets and businesses	38	25	16
Other investing activities	17	8	0
Net cash flows used in investing activities	(7,042)	(7,375)	(6,990)
Cash flows from financing activities
Changes in short-term borrowings	(265)	(313)	986
Proceeds from short-term borrowings with maturities greater than 90 days	150	400	1,300
Repayments on short-term borrowings with maturities greater than 90 days	(549)	(150)	(1,500)
Issuance of long-term debt	4,974	5,825	6,309
Retirement of long-term debt	(1,557)	(1,713)	(2,073)
Issuance of common stock	148	140	563
Dividends paid on common stock	(1,524)	(1,433)	(1,334)
Proceeds from employee stock plans	43	41	36
Transfer of cash, restricted cash, and cash equivalents to Constellation	0	0	(2,594)
Other financing activities	(109)	(114)	(102)
Net cash flows provided by (used in) financing activities	1,311	2,683	1,591
Increase (decrease) in cash, restricted cash, and cash equivalents	(162)	11	(529)
Cash, restricted cash, and cash equivalents at beginning of period	1,101	1,090	1,619
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	939	1,101	1,090
Supplemental cash flow information
Increase (decrease) in capital expenditures not paid	301	(215)	36
Increase in DPP	0	0	348
(Decrease) Increase in PP&E Related to ARO Update	$ 16	$ (13)	$ 332