Statements of Cash Flows - Pepco - 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
Deferred income taxes and amortization of investment tax credits	128	319	255
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
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 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
Issuance of long-term debt	4,974	5,825	6,309
Retirement of long-term debt	(1,557)	(1,713)	(2,073)
Dividends paid on common stock	(1,524)	(1,433)	(1,334)
Other financing activities	(109)	(114)	(102)
Net cash flows provided by financing activities	1,311	2,683	1,591
(Decrease) increase 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, restricted cash, and cash equivalents at end of period	939	1,101	1,090
Supplemental cash flow information
Increase (decrease) in capital expenditures not paid	301	(215)	36
Potomac Electric Power Company
Cash flows from operating activities
Net income	390	306	305
Adjustments to reconcile net income to net cash flows used in operating activities:
Depreciation and amortization	407	441	417
Loss (gain) on sales of assets	1	(9)	0
Deferred income taxes and amortization of investment tax credits	24	(15)	(17)
Other non-cash operating activities	33	53	36
Changes in assets and liabilities:
Accounts receivable	(26)	(29)	(104)
Inventories	(10)	(24)	(16)
Accounts payable and accrued expenses	67	6	24
Collateral (paid) received, net	0	(25)	24
Income taxes	(30)	60	(19)
Regulatory assets and liabilities, net	(85)	(45)	(69)
Pension and non-pension postretirement benefit contributions	(9)	(12)	(11)
Other assets and liabilities	(84)	(5)	(66)
Net cash flows provided by operating activities	684	699	471
Cash flows from investing activities
Capital expenditures	(929)	(957)	(874)
Proceeds from sales of assets and businesses	0	10	0
Other investing activities	0	8	3
Net cash flows used in investing activities	(929)	(939)	(871)
Cash flows from financing activities
Changes in short-term borrowings	68	(167)	124
Issuance of long-term debt	675	350	625
Retirement of long-term debt	(400)	0	(310)
Dividends paid on common stock	(359)	(252)	(463)
Contributions from parent	260	308	465
Other financing activities	(20)	(26)	(10)
Net cash flows provided by financing activities	224	213	431
(Decrease) increase in cash, restricted cash, and cash equivalents	(21)	(27)	31
Cash, restricted cash, and cash equivalents at beginning of period	72	99	68
Cash, restricted cash, and cash equivalents at end of period	51	72	99
Supplemental cash flow information
Increase (decrease) in capital expenditures not paid	30	(55)	65
Potomac Electric Power Company | Related Party
Changes in assets and liabilities:
Receivables from and payables to affiliates, net	$ 6	$ (3)	$ (33)