Commitments and Contingencies (Narrative) (Details) $ in Millions		12 Months Ended
	Dec. 20, 2024 Plaintiff	Dec. 31, 2024 USD ($) reactor case	Dec. 31, 2023 USD ($)
Loss Contingencies [Line Items]
Number of licensed nuclear reactors | reactor		95
Insured public liability limit per nuclear incident		$ 16,200.0
Excess nuclear liability program coverage		15,800.0
Pro rata assessment for each reactor owned for each incident exceeding public liability insurance		166.0
Annual payment limit to pro rata assessments		24.7
Industry aggregate limit		3,200.0
Sublimit for non-nuclear terrorist events		1,800.0
Sublimit property damage losses		1,500.0
Additional nuclear accident limit		$ 1,250.0
Accidental outage insurance coverage initial weeks (in days)		365 days
Insurance coverage percentage initial weeks (as a percent)		100.00%
Accidental outage insurance coverage additional weeks (in days)		770 days
Insurance coverage percentage additional weeks (as a percent)		80.00%
Accidental outage insurance coverage policy limit		$ 490.0
Weeks of sublimits for accidental outage coverage (in days)		728 days
Sublimit accidental outage recovery		$ 291.0
Maximum magnitude of retroactive premiums		10
Maximum period for retroactive premium assessment (in years)		6 years
Maximum | Pipeline and storage capacity contracts
Loss Contingencies [Line Items]
Long-term purchase commitment term (in years)		18 years
Maximum | Natural gas supply contracts fixed payment
Loss Contingencies [Line Items]
Long-term purchase commitment term (in years)		3 years
Maximum | Natural gas supply purchase commitments
Loss Contingencies [Line Items]
Long-term purchase commitment term (in years)		6 years
Texas Storm Uri Tort Litigation | Pending Litigation
Loss Contingencies [Line Items]
Number of pending claims | case		5
Mooresville Coal Ash Class Action Litigation
Loss Contingencies [Line Items]
Number of plaintiffs | Plaintiff	15
Duke Energy Carolinas
Loss Contingencies [Line Items]
Primary nuclear liability program coverage		$ 500.0
Max retroactive premium assessments		162.0
Duke Energy Carolinas | Asbestos Issue
Loss Contingencies [Line Items]
Asbestos-related injuries and damages reserves		396.0	$ 423.0
Loss contingency, receivable, noncurrent		539.0	572.0
Duke Energy Progress
Loss Contingencies [Line Items]
Primary nuclear liability program coverage		500.0
Max retroactive premium assessments		99.0
Duke Energy Florida
Loss Contingencies [Line Items]
Primary nuclear liability program coverage		100.0
Max retroactive premium assessments		1.0
Duke Energy and Duke Energy Carolinas | ASU 2016-13
Loss Contingencies [Line Items]
Premium receivable, allowance for credit loss		$ 9.0	$ 9.0
Catawba | Duke Energy Carolinas
Loss Contingencies [Line Items]
Number of licensed nuclear reactors | reactor		2
Dedicated additional nuclear accident limit		$ 1,250.0
Additional Non-nuclear accident limit		$ 750.0
Potential obligation percentage (as a percent)		100.00%
McGuire | Duke Energy Carolinas
Loss Contingencies [Line Items]
Number of licensed nuclear reactors | reactor		2
Oconee | Duke Energy Carolinas
Loss Contingencies [Line Items]
Number of licensed nuclear reactors | reactor		3
Additional Non-nuclear accident limit		$ 750.0
Harris | Duke Energy Progress
Loss Contingencies [Line Items]
Number of licensed nuclear reactors | reactor		1
Robinson | Duke Energy Progress
Loss Contingencies [Line Items]
Number of licensed nuclear reactors | reactor		1
Brunswick | Duke Energy Progress
Loss Contingencies [Line Items]
Number of licensed nuclear reactors | reactor		2
Crystal River Unit 3 | Duke Energy Florida
Loss Contingencies [Line Items]
Sublimit property damage losses		$ 50.0