Employee Benefit Plans (Expected Benefit Payments) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Pension Plan
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	$ 628
2026	606
2027	586
2028	572
2029	546
2030-2034	2,407
Pension Plan \| Duke Energy Carolinas
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	173
2026	161
2027	153
2028	149
2029	138
2030-2034	567
Pension Plan \| Progress Energy
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	183
2026	179
2027	175
2028	173
2029	167
2030-2034	762
Pension Plan \| Duke Energy Progress
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	98
2026	91
2027	87
2028	85
2029	79
2030-2034	338
Pension Plan \| Duke Energy Florida
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	84
2026	87
2027	87
2028	87
2029	87
2030-2034	420
Pension Plan \| Duke Energy Ohio
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	31
2026	30
2027	29
2028	29
2029	29
2030-2034	129
Pension Plan \| Duke Energy Indiana
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	43
2026	42
2027	42
2028	41
2029	42
2030-2034	197
Pension Plan \| Piedmont
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	19
2026	18
2027	17
2028	17
2029	16
2030-2034	73
Other Post-Retirement Benefit Plans
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	52
2026	45
2027	41
2028	38
2029	35
2030-2034	124
Other Post-Retirement Benefit Plans \| Duke Energy Carolinas
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	13
2026	11
2027	9
2028	8
2029	7
2030-2034	21
Other Post-Retirement Benefit Plans \| Progress Energy
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	18
2026	16
2027	16
2028	15
2029	14
2030-2034	59
Other Post-Retirement Benefit Plans \| Duke Energy Progress
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	11
2026	10
2027	9
2028	9
2029	8
2030-2034	35
Other Post-Retirement Benefit Plans \| Duke Energy Florida
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	8
2026	7
2027	7
2028	6
2029	6
2030-2034	24
Other Post-Retirement Benefit Plans \| Duke Energy Ohio
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	3
2026	3
2027	2
2028	2
2029	2
2030-2034	6
Other Post-Retirement Benefit Plans \| Duke Energy Indiana
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	4
2026	3
2027	3
2028	3
2029	2
2030-2034	8
Other Post-Retirement Benefit Plans \| Piedmont
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2025	2
2026	2
2027	2
2028	2
2029	2
2030-2034	$ 6

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Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

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