Consolidated Statements of Cash Flows (Unaudited) - PECO - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities
Net income	$ 1,711	$ 1,739
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation, amortization, and accretion, including nuclear fuel and energy contract amortization	2,616	2,679
Asset impairments	0	46
Gain on sales of assets and businesses	0	(8)
Deferred income taxes and amortization of investment tax credits	210	256
Net fair value changes related to derivatives	21	(59)
Net realized and unrealized (gains) losses on NDT funds	0	205
Net unrealized (gains) losses on equity investments	0	16
Other non-cash operating activities	(237)	265
Changes in assets and liabilities:
Accounts receivable	82	(1,049)
Inventories	(8)	(121)
Accounts payable and accrued expenses	(454)	823
Option premiums paid, net	0	(39)
Collateral (paid) received, net	(183)	1,456
Income taxes	50	3
Regulatory assets and liabilities, net	395	689
Pension and non-pension postretirement benefit contributions	(97)	(596)
Other assets and liabilities	(24)	(786)
Net cash flows provided by operating activities	3,292	4,141
Cash flows from investing activities
Capital expenditures	(5,540)	(5,179)
Other investing activities	25	36
Net cash flows used in investing activities	(5,515)	(4,986)
Cash flows from financing activities
Changes in short-term borrowings	(1,116)	(335)
Issuance of long-term debt	5,300	5,801
Retirement of long-term debt	(1,209)	(2,067)
Dividends paid on common stock	(1,074)	(999)
Other financing activities	(101)	(121)
Net cash flows provided by financing activities	2,080	499
(Decrease) increase in cash, restricted cash, and cash equivalents	(143)	(346)
Cash, restricted cash, and cash equivalents at beginning of period	1,090	1,619
Cash, restricted cash, and cash equivalents at end of period	947	1,273
Supplemental cash flow information
Decrease in capital expenditures not paid	(169)	(147)
PECO Energy Co
Cash flows from operating activities
Net income	410	474
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation, amortization, and accretion, including nuclear fuel and energy contract amortization	297	277
Deferred income taxes and amortization of investment tax credits	(44)	49
Other non-cash operating activities	2	14
Changes in assets and liabilities:
Accounts receivable	135	(49)
Receivables from and payables to affiliates, net	(2)	(34)
Inventories	35	(59)
Accounts payable and accrued expenses	(132)	25
Income taxes	76	30
Regulatory assets and liabilities, net	1	(27)
Pension and non-pension postretirement benefit contributions	(1)	(13)
Other assets and liabilities	0	(31)
Net cash flows provided by operating activities	777	656
Cash flows from investing activities
Capital expenditures	(1,068)	(991)
Changes in Exelon intercompany money pool	(51)	0
Other investing activities	1	8
Net cash flows used in investing activities	(1,118)	(983)
Cash flows from financing activities
Changes in short-term borrowings	(239)	0
Issuance of long-term debt	575	775
Retirement of long-term debt	(50)	(350)
Dividends paid on common stock	(303)	(299)
Contributions from parent	348	274
Other financing activities	(6)	(14)
Net cash flows provided by financing activities	325	386
(Decrease) increase in cash, restricted cash, and cash equivalents	(16)	59
Cash, restricted cash, and cash equivalents at beginning of period	68	44
Cash, restricted cash, and cash equivalents at end of period	52	103
Supplemental cash flow information
Decrease in capital expenditures not paid	$ (22)	$ 7