Leases (Finance Lease Maturities) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Finance Lease, Liability, Payment, Due
2023	$ 198
2024	143
2025	76
2026	77
2027	74
Thereafter	584
Total finance lease payments	1,152
Less: amounts representing interest	(388)
Total finance lease liabilities	764	$ 915
Duke Energy Carolinas
Finance Lease, Liability, Payment, Due
2023	38
2024	38
2025	38
2026	38
2027	38
Thereafter	427
Total finance lease payments	617
Less: amounts representing interest	(333)
Total finance lease liabilities	284	289
Progress Energy
Finance Lease, Liability, Payment, Due
2023	103
2024	88
2025	85
2026	86
2027	82
Thereafter	555
Total finance lease payments	999
Less: amounts representing interest	(371)
Total finance lease liabilities	628	690
Duke Energy Progress
Finance Lease, Liability, Payment, Due
2023	78
2024	79
2025	80
2026	81
2027	81
Thereafter	555
Total finance lease payments	954
Less: amounts representing interest	(367)
Total finance lease liabilities	587	629
Duke Energy Florida
Finance Lease, Liability, Payment, Due
2023	25
2024	9
2025	5
2026	5
2027	1
Total finance lease payments	45
Less: amounts representing interest	(4)
Total finance lease liabilities	41	61
Duke Energy Indiana
Finance Lease, Liability, Payment, Due
2023	1
2024	1
2025	1
2026	1
2027	1
Thereafter	23
Total finance lease payments	28
Less: amounts representing interest	(19)
Total finance lease liabilities	$ 9	$ 10

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