Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Lease Costs and Cash Flows Information

The following tables present the components of lease expense.

	Year Ended December 31, 2021
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Operating lease expense(a)	$	250	$	43	$	155	$	83	$	72	$	11	$	18	$	7
Short-term lease expense(a)	5		—		2		1		1		—		2		—
Variable lease expense(a)	41		17		22		10		12		—		—		1
Finance lease expense
Amortization of leased assets(b)	219		5		37		18		19		—		1		—
Interest on lease liabilities(c)	55		33		48		42		6		—		—		—
Total finance lease expense	274		38		85		60		25		—		1		—
Total lease expense	$	570	$	98	$	264	$	154	$	110	$	11	$	21	$	8

(a)    Included in Operations, maintenance and other or, for barges and railcars, Fuel used in electric generation and purchased power on the Consolidated Statements of Operations.

(b)    Included in Depreciation and amortization on the Consolidated Statements of Operations.

(c)    Included in Interest Expense on the Consolidated Statements of Operations.

	Year Ended December 31, 2020
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Operating lease expense(a)	$	283	$	53	$	162	$	72	$	90	$	11	$	19	$	7
Short-term lease expense(a)	4		—		2		1		1		—		1		—
Variable lease expense(a)	30		13		13		5		8		—		1		1
Finance lease expense
Amortization of leased assets(b)	119		8		24		6		18		—		1		—
Interest on lease liabilities(c)	61		30		44		37		7		—		—		—
Total finance lease expense	180		38		68		43		25		—		1		—
Total lease expense	$	497	$	104	$	245	$	121	$	124	$	11	$	22	$	8

(a)    Included in Operations, maintenance and other or, for barges and railcars, Fuel used in electric generation and purchased power on the Consolidated Statements of Operations.

(b)    Included in Depreciation and amortization on the Consolidated Statements of Operations.

(c)    Included in Interest Expense on the Consolidated Statements of Operations.

	Year Ended December 31, 2021
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Cash paid for amounts included in the measurement of lease liabilities(a)
Operating cash flows from operating leases	$	245	$	25	$	117	$	62	$	55	$	2	$	6	$	5
Operating cash flows from finance leases	55		33		48		42		6		—		—		—
Financing cash flows from finance leases	219		5		37		18		19		—		1		—
Lease assets obtained in exchange for new lease liabilities (non-cash)
Operating(b)	$	182	$	4	$	99	$	99	$	—	$	—	$	—	$	—
Finance	322		—		322		322		—		—		—		—

(a)    No amounts were classified as investing cash flows from operating leases for the year ended December 31, 2021.

(b)    Does not include ROU assets recorded as a result of the adoption of the new lease standard.

	Year Ended December 31, 2020
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Cash paid for amounts included in the measurement of lease liabilities(a)
Operating cash flows from operating leases	$	271	$	31	$	124	$	52	$	72	$	2	$	6	$	5
Operating cash flows from finance leases	61		30		44		37		7		—		—		—
Financing cash flows from finance leases	119		8		24		6		18		—		1		—
Lease assets obtained in exchange for new lease liabilities (non-cash)
Operating(b)	$	116	$	17	$	—	$	—	$	—	$	—	$	1	$	—
Finance	125		125		—		—		—		—		—		—

(a)    No amounts were classified as investing cash flows from operating leases for the year ended December 31, 2020.

(b)    Does not include ROU assets recorded as a result of the adoption of the new lease standard.

Operating Lease Maturities

The following table presents operating lease maturities and a reconciliation of the undiscounted cash flows to operating lease liabilities.

	December 31, 2021
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
2022	$	225	$	24	$	118	$	63	$	55	$	2	$	6	$	5
2023	212		21		118		64		54		2		6		5
2024	185		14		110		56		54		2		4		5
2025	156		10		96		42		54		2		4		5
2026	136		10		92		38		54		2		4		—
Thereafter	594		42		290		220		70		16		50		—
Total operating lease payments	1,508		121		824		483		341		26		74		20
Less: present value discount	(247)		(21)		(124)		(83)		(41)		(7)		(20)		(1)
Total operating lease liabilities(a)	$	1,261	$	100	$	700	$	400	$	300	$	19	$	54	$	19

(a)    Certain operating lease payments include renewal options that are reasonably certain to be exercised.

Maturities of Finance Lease Liabilities

The following table presents finance lease maturities and a reconciliation of the undiscounted cash flows to finance lease liabilities.

	December 31, 2021
			Duke				Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Indiana
2022	$	201	$	38	$	111	$	86	$	25	$	1
2023	198		38		103		78		25		1
2024	143		38		88		79		9		1
2025	76		38		85		80		5		1
2026	77		38		86		81		5		1
Thereafter	658		464		637		636		1		24
Total finance lease payments	1,353		654		1,110		1,040		70		29
Less: amounts representing interest	(438)		(365)		(420)		(411)		(9)		(19)
Total finance lease liabilities	$	915	$	289	$	690	$	629	$	61	$	10

Balance Sheet Amounts Recorded for Operating and Finance Leases

The following tables contain additional information related to leases.

		December 31, 2021
				Duke				Duke		Duke		Duke		Duke
		Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Classification	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Assets
Operating	Operating lease ROU assets, net	$	1,266	$	92	$	691	$	389	$	302	$	19	$	53	$	16
Finance	Net property, plant and equipment	950		302		729		627		102		—		7		—
Total lease assets		$	2,216	$	394	$	1,420	$	1,016	$	404	$	19	$	60	$	16
Liabilities
Current
Operating	Other current liabilities	$	187	$	22	$	94	$	50	$	44	$	1	$	4	$	5
Finance	Current maturities of long-term debt	151		6		61		41		20		—		—		—
Noncurrent
Operating	Operating lease liabilities	1,074		78		606		350		256		18		50		14
Finance	Long-Term Debt	764		283		629		588		41		—		10		—
Total lease liabilities		$	2,176	$	389	$	1,390	$	1,029	$	361	$	19	$	64	$	19

		December 31, 2020
				Duke				Duke		Duke		Duke		Duke
		Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Classification	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Assets
Operating	Operating lease ROU assets, net	$	1,524	$	110	$	690	$	346	$	344	$	20	$	55	$	20
Finance	Net property, plant and equipment	797		312		416		297		119		—		7		—
Total lease assets		$	2,321	$	422	$	1,106	$	643	$	463	$	20	$	62	$	20
Liabilities
Current
Operating	Other current liabilities	$	177	$	20	$	73	$	31	$	42	$	1	$	3	$	4
Finance	Current maturities of long-term debt	129		5		26		7		19		—		—		—
Noncurrent
Operating	Operating lease liabilities	1,340		97		623		323		300		20		53		19
Finance	Long-Term Debt	716		289		351		289		62		—		10		—
Total lease liabilities		$	2,362	$	411	$	1,073	$	650	$	423	$	21	$	66	$	23

Supplemental Lease Information

	December 31, 2021
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Weighted average remaining lease term (years)
Operating leases	9		9		8		10		7		16		16		4
Finance leases	10		18		13		13		11		—		24		—
Weighted average discount rate(a)
Operating leases	3.6	%	3.5	%	3.6	%	3.4	%	3.8	%	4.2	%	4.1	%	3.6	%
Finance leases	7.3	%	11.6	%	9.0	%	9.0	%	8.2	%	—	%	11.9	%	—	%

(a)    The discount rate is calculated using the rate implicit in a lease if it is readily determinable. Generally, the rate used by the lessor is not provided to Duke Energy and in these cases the incremental borrowing rate is used. Duke Energy will typically use its fully collateralized incremental borrowing rate as of the commencement date to calculate and record the lease. The incremental borrowing rate is influenced by the lessee’s credit rating and lease term and as such may differ for individual leases, embedded leases or portfolios of leased assets.

	December 31, 2020
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Weighted average remaining lease term (years)
Operating leases	10		9		10		12		8		17		18		5
Finance leases	13		19		15		17		11		—		25		—
Weighted average discount rate(a)
Operating leases	3.8	%	3.4	%	3.8	%	3.9	%	3.8	%	4.2	%	4.2	%	3.6	%
Finance leases	8.4	%	11.6	%	11.9	%	12.4	%	8.2	%	—	%	11.9	%	—	%

(a)    The discount rate is calculated using the rate implicit in a lease if it is readily determinable. Generally, the rate used by the lessor is not provided to Duke Energy and in these cases the incremental borrowing rate is used. Duke Energy will typically use its fully collateralized incremental borrowing rate as of the commencement date to calculate and record the lease. The incremental borrowing rate is influenced by the lessee’s credit rating and lease term and as such may differ for individual leases, embedded leases or portfolios of leased assets.