Statements of Cash Flows - DPL - 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)
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
Delmarva Power & Light Company
Cash flows from operating activities
Net income	209	177	169
Adjustments to reconcile net income to net cash flows used in operating activities:
Depreciation and amortization	245	244	232
Deferred income taxes and amortization of investment tax credits	16	4	16
Other non-cash operating activities	40	13	29
Changes in assets and liabilities:
Accounts receivable	(46)	6	(59)
Inventories	(20)	(5)	(11)
Accounts payable and accrued expenses	22	(7)	19
Collateral (paid) received, net	2	(121)	78
Income taxes	(24)	26	0
Regulatory assets and liabilities, net	(51)	25	(34)
Pension and non-pension postretirement benefit contributions	(3)	(4)	(1)
Other assets and liabilities	16	13	(10)
Net cash flows provided by operating activities	408	373	418
Cash flows from investing activities
Capital expenditures	(556)	(562)	(430)
Other investing activities	0	0	3
Net cash flows used in investing activities	(556)	(562)	(427)
Cash flows from financing activities
Changes in short-term borrowings	81	(52)	(34)
Issuance of long-term debt	175	650	125
Retirement of long-term debt	(33)	(500)	0
Dividends paid on common stock	(220)	(133)	(143)
Contributions from parent	160	99	147
Other financing activities	(8)	(11)	(5)
Net cash flows provided by financing activities	155	53	90
(Decrease) increase in cash, restricted cash, and cash equivalents	7	(136)	81
Cash, restricted cash, and cash equivalents at beginning of period	16	152	71
Cash, restricted cash, and cash equivalents at end of period	23	16	152
Supplemental cash flow information
Increase (decrease) in capital expenditures not paid	41	(6)	23
Delmarva Power & Light Company | Related Party
Changes in assets and liabilities:
Receivables from and payables to affiliates, net	$ 2	$ 2	$ (10)