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Asset Retirement Obligations (NDTF Information) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
NDTF Information [Abstract]
Decommissioning costs	$ 8,972
Legally restricted NDTF investments, fair value	11,373	$ 10,044
Duke Energy Carolinas
NDTF Information [Abstract]
Decommissioning costs	4,439
Legally restricted NDTF investments, fair value	6,453	5,687
Duke Energy Progress
NDTF Information [Abstract]
Decommissioning costs	4,477
Legally restricted NDTF investments, fair value	4,920	4,357
Duke Energy Florida
NDTF Information [Abstract]
Decommissioning costs	56
Progress Energy
NDTF Information [Abstract]
Decommissioning costs	4,533
Legally restricted NDTF investments, fair value	$ 4,920	$ 4,357

X

- Definition

Carrying amount of an asset that is legally restricted for purposes of settling an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481850/410-20-50-1

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- Definition

Amount of a decommissioning liability associated with a legal obligation that a firm incurs when it constructs or operates an asset that must eventually be withdrawn from active service. This may include operating assets such as nuclear power plants or shipping vessels.

+ References

No definition available.

+ Details

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- References

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