Revenue (Tables)

12 Months Ended

Dec. 31, 2023

Revenue from Contract with Customer [Abstract]

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction

Supplemental requirements contracts that include contracted blocks of energy and capacity at contractually fixed prices have the following estimated remaining performance obligations:

	Remaining Performance Obligations
(in millions)	2024		2025		2026		2027		2028		Thereafter		Total
Progress Energy	$	72	$	30	$	7	$	7	$	7	$	29	$	152
Duke Energy Progress	8		—		—		—		—		—		8
Duke Energy Florida	64		30		7		7		7		29		144
Duke Energy Indiana	16		17		17		15		5		—		70

Estimated remaining performance obligations are as follows:

	Remaining Performance Obligations
(in millions)	2024		2025		2026		2027		2028		Thereafter		Total
Piedmont	$	66	$	61	$	51	$	49	$	46	$	195	$	468

Disaggregation of Revenue

Disaggregated revenues are presented as follows:

	Year Ended December 31, 2023
			Duke				Duke		Duke		Duke		Duke
(in millions)	Duke		Energy		Progress		Energy		Energy		Energy		Energy
By market or type of customer	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Electric Utilities and Infrastructure
Residential	$	12,098	$	3,409	$	6,510	$	2,540	$	3,970	$	947	$	1,233	$	—
General	7,895		2,670		3,762		1,588		2,174		552		911		—
Industrial	3,416		1,334		1,105		733		372		191		786		—
Wholesale	2,175		492		1,388		1,240		148		46		248		—
Other revenues	962		318		590		325		265		93		157		—
Total Electric Utilities and Infrastructure revenue from contracts with customers	$	26,546	$	8,223	$	13,355	$	6,426	$	6,929	$	1,829	$	3,335	$	—
Gas Utilities and Infrastructure
Residential	$	1,226	$	—	$	—	$	—	$	—	$	435	$	—	$	792
Commercial	605		—		—		—		—		154		—		450
Industrial	141		—		—		—		—		26		—		115
Power Generation	—		—		—		—		—		—		—		31
Other revenues	119		—		—		—		—		24		—		95
Total Gas Utilities and Infrastructure revenue from contracts with customers	$	2,091	$	—	$	—	$	—	$	—	$	639	$	—	$	1,483
Other
Revenue from contracts with customers	$	37	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Total revenue from contracts with customers	$	28,674	$	8,223	$	13,355	$	6,426	$	6,929	$	2,468	$	3,335	$	1,483
Other revenue sources(a)	$	386	$	65	$	189	$	62	$	107	$	39	$	64	$	145
Total revenues	$	29,060	$	8,288	$	13,544	$	6,488	$	7,036	$	2,507	$	3,399	$	1,628

(a)    Other revenue sources include revenues from leases, derivatives and alternative revenue programs that are not considered revenues from contracts with customers. Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over or under collection of related revenues.

	Year Ended December 31, 2022
			Duke				Duke		Duke		Duke		Duke
(in millions)	Duke		Energy		Progress		Energy		Energy		Energy		Energy
By market or type of customer	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Electric Utilities and Infrastructure
Residential	$	11,377	$	3,275	$	5,812	$	2,378	$	3,434	$	862	$	1,430	$	—
General	7,356		2,396		3,396		1,480		1,916		517		1,049		—
Industrial	3,504		1,251		1,095		770		325		202		956		—
Wholesale	2,856		561		1,785		1,346		439		127		383		—
Other revenues	795		372		994		768		226		61		19		—
Total Electric Utilities and Infrastructure revenue from contracts with customers	$	25,888	$	7,855	$	13,082	$	6,742	$	6,340	$	1,769	$	3,837	$	—
Gas Utilities and Infrastructure
Residential	$	1,462	$	—	$	—	$	—	$	—	$	488	$	—	$	974
Commercial	765		—		—		—		—		180		—		585
Industrial	170		—		—		—		—		24		—		144
Power Generation	—		—		—		—		—		—		—		94
Other revenues	360		—		—		—		—		25		—		271
Total Gas Utilities and Infrastructure revenue from contracts with customers	$	2,757	$	—	$	—	$	—	$	—	$	717	$	—	$	2,068
Other
Revenue from contracts with customers	$	30	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Total revenue from contracts with customers	$	28,675	$	7,855	$	13,082	$	6,742	$	6,340	$	2,486	$	3,837	$	2,068
Other revenue sources(a)	$	93	$	2	$	43	$	11	$	13	$	28	$	85	$	56
Total revenues	$	28,768	$	7,857	$	13,125	$	6,753	$	6,353	$	2,514	$	3,922	$	2,124

(a)    Other revenue sources include revenues from leases, derivatives and alternative revenue programs that are not considered revenues from contracts with customers. Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over or under collection of related revenues.

	Year Ended December 31, 2021
			Duke				Duke		Duke		Duke		Duke
(in millions)	Duke		Energy		Progress		Energy		Energy		Energy		Energy
By market or type of customer	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Electric Utilities and Infrastructure
Residential	$	10,097	$	3,054	$	5,084	$	2,156	$	2,928	$	767	$	1,188	$	—
General	6,375		2,210		2,883		1,378		1,505		440		825		—
Industrial	2,924		1,145		894		634		260		135		750		—
Wholesale	2,199		472		1,385		1,164		221		56		285		—
Other revenues	879		264		716		387		329		83		86		—
Total Electric Utilities and Infrastructure revenue from contracts with customers	$	22,474	$	7,145	$	10,962	$	5,719	$	5,243	$	1,481	$	3,134	$	—
Gas Utilities and Infrastructure
Residential	$	1,131	$	—	$	—	$	—	$	—	$	354	$	—	$	777
Commercial	561		—		—		—		—		143		—		418
Industrial	158		—		—		—		—		20		—		137
Power Generation	—		—		—		—		—		—		—		92
Other revenues	133		—		—		—		—		28		—		45
Total Gas Utilities and Infrastructure revenue from contracts with customers	$	1,983	$	—	$	—	$	—	$	—	$	545	$	—	$	1,469
Other
Revenue from contracts with customers	$	29	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Total revenue from contracts with customers	$	24,486	$	7,145	$	10,962	$	5,719	$	5,243	$	2,026	$	3,134	$	1,469
Other revenue sources(a)	$	135	$	(43)	$	95	$	61	$	16	$	11	$	40	$	100
Total revenues	$	24,621	$	7,102	$	11,057	$	5,780	$	5,259	$	2,037	$	3,174	$	1,569

(a)    Other revenue sources include revenues from leases, derivatives and alternative revenue programs that are not considered revenues from contracts with customers. Alternative revenue programs in certain jurisdictions include regulatory mechanisms that periodically adjust for over or under collection of related revenues.

Accounts Receivable, Allowance for Credit Loss

The following table presents the reserve for credit losses for trade and other receivables.

			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Balance at December 31, 2020	$	146	$	23	$	37	$	23	$	14	$	4	$	3	$	12
Write-Offs	(58)		(21)		(25)		(12)		(13)		—		—		(9)
Credit Loss Expense	53		27		25		11		14		—		—		7
Other Adjustments	(20)		13		(1)		(1)		1		—		—		5
Balance at December 31, 2021	$	121	$	42	$	36	$	21	$	16	$	4	$	3	$	15
Write-Offs	(158)		(73)		(70)		(36)		(34)		—		—		(12)
Credit Loss Expense	160		40		72		17		55		2		1		11
Other Adjustments	93		59		43		42		(1)		—		—		—
Balance at December 31, 2022	$	216	$	68	$	81	$	44	$	36	$	6	$	4	$	14
Write-Offs	(164)		(71)		(84)		(41)		(42)		—		—		(10)
Credit Loss Expense	101		35		48		12		37		3		1		7
Other Adjustments	52		24		29		29		—		—		—		—
Balance at December 31, 2023	$	205	$	56	$	74	$	44	$	31	$	9	$	5	$	11

Financing Receivable, Past Due

The aging of trade receivables is presented in the table below.

	December 31, 2023
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Unbilled Receivables(a)(b)	$	1,273	$	399	$	401	$	280	$	121	$	4	$	22	$	108
Current	2,306		680		1,009		612		395		48		87		199
1-30 days past due	275		97		91		41		50		12		14		9
31-60 days past due	78		20		34		23		11		3		7		2
61-90 days past due	47		15		17		10		7		2		4		1
91+ days past due	253		67		69		24		45		46		27		3
Deferred Payment Arrangements(c)	104		34		43		26		17		6		—		—
Trade and Other Receivables	$	4,336	$	1,312	$	1,664	$	1,016	$	646	$	121	$	161	$	322

	December 31, 2022
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Unbilled Receivables(a)(b)	$	1,457	$	486	$	355	$	232	$	123	$	20	$	28	$	160
Current	2,347		577		1,059		637		417		15		52		265
1-30 days past due	261		96		60		15		45		5		17		15
31-60 days past due	123		23		61		49		12		6		2		3
61-90 days past due	74		25		18		9		9		3		11		2
91+ days past due	209		70		74		27		47		26		6		4
Deferred Payment Arrangements(c)	160		57		62		35		27		4		—		1
Trade and Other Receivables	$	4,631	$	1,334	$	1,689	$	1,004	$	680	$	79	$	116	$	450

(a)    Unbilled revenues are recognized by applying customer billing rates to the estimated volumes of energy or natural gas delivered but not yet billed and are included within Receivables and Receivables of VIEs on the Consolidated Balance Sheets.

(b)    Duke Energy Ohio and Duke Energy Indiana sell, on a revolving basis, nearly all of their retail accounts receivable, including receivables for unbilled revenues, to an affiliate, CRC, and account for the transfers of receivables as sales. Accordingly, the receivables sold are not reflected on the Consolidated Balance Sheets of Duke Energy Ohio and Duke Energy Indiana. See Note 18 for further information. These receivables for unbilled revenues are $141 million and $197 million for Duke Energy Ohio and Duke Energy Indiana, respectively, as of December 31, 2023, and $148 million and $260 million for Duke Energy Ohio and Duke Energy Indiana, respectively, as of December 31, 2022.

(c)    Due to ongoing financial hardships impacting customers, Duke Energy has permitted customers to defer payment of past-due amounts through installment payment plans.