Condensed Consolidated Statements of Cash Flows - Duke Energy Florida - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 4,614	$ 2,874	$ 2,455
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion (including amortization of nuclear fuel)	6,419	6,084	5,843
Equity component of AFUDC	(233)	(198)	(197)
Gains on sales of other assets	(26)	(52)	(22)
Impairment of assets and other charges	38	85	434
Deferred income taxes	987	3	(200)
Contributions to qualified pension plans	(100)	(100)	(58)
Payments for asset retirement obligations	(545)	(632)	(584)
Provision for rate refunds	(27)	(63)	(130)
(Increase) decrease in
Net realized and unrealized mark-to-market and hedging transactions	(103)	(18)	19
Receivables	(23)	443	(788)
Inventory	(212)	(706)	(476)
Other current assets	885	(267)	(1,498)
Increase (decrease) in
Accounts payable	1,329	(800)	805
Taxes accrued	32	126	10
Other current liabilities	(11)	(26)	(153)
Other assets	(1,170)	914	(1,577)
Other liabilities	451	584	410
Net cash provided by operating activities	12,328	9,878	5,927
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(12,280)	(12,604)	(11,367)
Purchases of debt and equity securities	(5,703)	(3,761)	(4,243)
Proceeds from sales and maturities of debt and equity securities	5,803	3,824	4,333
Proceeds from the sales of other assets	49	149	83
Other	(1,009)	(799)	(727)
Net cash used in investing activities	(13,123)	(12,475)	(11,973)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt	8,956	10,028	11,874
Payments for the redemption of long-term debt	(3,357)	(4,737)	(4,396)
Other	(52)	(124)	(130)
Net cash provided by financing activities	859	2,351	6,129
Net increase (decrease) in cash, cash equivalents and restricted cash	64	(246)	83
Cash, cash equivalents and restricted cash at beginning of period	357	603	520
Cash, cash equivalents and restricted cash at end of period	421	357	603
Supplemental Disclosures:
Cash paid for interest, net of amount capitalized	3,284	2,883	2,361
Cash paid for (received from) income taxes, net (includes transferable tax credit sale proceeds of $558, $28 and $0, respectively)	(400)	1	(6)
Significant non-cash transactions:
Accrued capital expenditures	1,909	1,908	1,766
Duke Energy Florida
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	1,061	1,016	909
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion (including amortization of nuclear fuel)	1,239	1,260	1,032
Equity component of AFUDC	(13)	(15)	(16)
Impairment of assets and other charges	0	(1)	4
Deferred income taxes	265	(89)	285
Contributions to qualified pension plans	(9)	(9)	(5)
Payments for asset retirement obligations	(82)	(80)	(98)
(Increase) decrease in
Receivables	37	30	(93)
Receivables from affiliated companies	217	(236)	14
Inventory	(58)	(101)	(98)
Other current assets	(456)	496	(640)
Increase (decrease) in
Accounts payable	803	(241)	202
Accounts payable to affiliated companies	(68)	(42)	(32)
Taxes accrued	(129)	132	2
Other current liabilities	37	3	62
Other assets	(312)	163	(704)
Other liabilities	38	101	18
Net cash provided by operating activities	2,570	2,387	842
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(2,449)	(2,529)	(2,247)
Purchases of debt and equity securities	(223)	(184)	(193)
Proceeds from sales and maturities of debt and equity securities	330	261	279
Other	(292)	(185)	(108)
Net cash used in investing activities	(2,634)	(2,637)	(2,269)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt	279	1,564	1,298
Payments for the redemption of long-term debt	(395)	(879)	(77)
Notes payable to affiliated companies	314	(453)	406
Distributions to parent	(125)	0	(175)
Other	(1)	(1)	(1)
Net cash provided by financing activities	72	231	1,451
Net increase (decrease) in cash, cash equivalents and restricted cash	8	(19)	24
Cash, cash equivalents and restricted cash at beginning of period	67	86	62
Cash, cash equivalents and restricted cash at end of period	75	67	86
Supplemental Disclosures:
Cash paid for interest, net of amount capitalized	442	394	339
Cash paid for (received from) income taxes, net (includes transferable tax credit sale proceeds of $558, $28 and $0, respectively)	270	219	(83)
Significant non-cash transactions:
Accrued capital expenditures	$ 371	$ 493	$ 394