Condensed Consolidated Statements of Cash Flows - Duke Energy Ohio - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 1,151	$ 761
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion (including amortization of nuclear fuel)	1,534	1,344
Deferred income taxes	149	90
Payments for asset retirement obligations	(115)	(117)
(Increase) decrease in
Receivables	226	754
Inventory	11	(275)
Other current assets	329	262
Increase (decrease) in
Accounts payable	(553)	(1,193)
Taxes accrued	(110)	(148)
Other current liabilities	(208)	(266)
Other assets	41	(13)
Other liabilities	149	157
Net cash provided by operating activities	2,474	1,483
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(3,208)	(3,146)
Other	(166)	(149)
Net cash used in investing activities	(3,342)	(3,209)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt	3,481	4,085
Other	(67)	(84)
Net cash provided by financing activities	1,029	1,747
Net increase in cash, cash equivalents and restricted cash	161	21
Cash, cash equivalents and restricted cash at beginning of period	357	603
Cash, cash equivalents and restricted cash at end of period	518	624
Significant non-cash transactions:
Accrued capital expenditures	1,615	1,366
Duke Energy Ohio
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	94	100
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion (including amortization of nuclear fuel)	100	91
Deferred income taxes	2	(3)
Payments for asset retirement obligations	(1)	(1)
(Increase) decrease in
Receivables	12	0
Receivables from affiliated companies	65	17
Inventory	(5)	(11)
Other current assets	100	94
Increase (decrease) in
Accounts payable	(20)	(60)
Accounts payable to affiliated companies	(2)	(7)
Taxes accrued	(67)	(90)
Other current liabilities	(7)	(42)
Other assets	7	1
Other liabilities	(17)	(1)
Net cash provided by operating activities	261	88
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(217)	(232)
Losses on sales of other assets	0	75
Notes receivable from affiliated companies	(166)	(224)
Other	(10)	(16)
Net cash used in investing activities	(393)	(397)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt	424	749
Notes payable to affiliated companies	(307)	(425)
Other	(4)	(5)
Net cash provided by financing activities	113	319
Net increase in cash, cash equivalents and restricted cash	(19)	10
Cash, cash equivalents and restricted cash at beginning of period	24	16
Cash, cash equivalents and restricted cash at end of period	5	26
Significant non-cash transactions:
Accrued capital expenditures	$ 84	$ 87