Leases (Operating Lease Maturities) (Details) $ in Millions	Dec. 31, 2022 USD ($)
Lessee, Operating Lease, Liability, Payment, Due
2023	$ 225
2024	207
2025	175
2026	161
2027	134
Thereafter	322
Total operating lease payments	1,224
Less: present value discount	(169)
Total operating lease liabilities	1,055
Duke Energy Carolinas
Lessee, Operating Lease, Liability, Payment, Due
2023	23
2024	21
2025	14
2026	13
2027	9
Thereafter	37
Total operating lease payments	117
Less: present value discount	(20)
Total operating lease liabilities	97
Progress Energy
Lessee, Operating Lease, Liability, Payment, Due
2023	118
2024	110
2025	96
2026	99
2027	73
Thereafter	253
Total operating lease payments	749
Less: present value discount	(107)
Total operating lease liabilities	642
Duke Energy Progress
Lessee, Operating Lease, Liability, Payment, Due
2023	64
2024	56
2025	42
2026	45
2027	46
Thereafter	209
Total operating lease payments	462
Less: present value discount	(76)
Total operating lease liabilities	386
Duke Energy Florida
Lessee, Operating Lease, Liability, Payment, Due
2023	54
2024	54
2025	54
2026	54
2027	27
Thereafter	44
Total operating lease payments	287
Less: present value discount	(31)
Total operating lease liabilities	256
Duke Energy Ohio
Lessee, Operating Lease, Liability, Payment, Due
2023	2
2024	2
2025	2
2026	2
2027	2
Thereafter	15
Total operating lease payments	25
Less: present value discount	(7)
Total operating lease liabilities	18
Duke Energy Indiana
Lessee, Operating Lease, Liability, Payment, Due
2023	6
2024	5
2025	5
2026	4
2027	4
Thereafter	45
Total operating lease payments	69
Less: present value discount	(18)
Total operating lease liabilities	51
Piedmont
Lessee, Operating Lease, Liability, Payment, Due
2023	4
2024	4
2025	4
Thereafter	1
Total operating lease payments	13
Total operating lease liabilities	$ 13

Amount of lessee's undiscounted obligation for lease payment for operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth rolling twelve months following latest statement of financial position date. For interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980

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Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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