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Commitments and Contingencies (Purchased Power) (Details) - Purchased Power Contracts $ in Millions | 12 Months Ended
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Dec. 31, 2024 USD ($)
Duke Energy Progress |
Unconditional Purchase Obligations [Abstract] |
2025 | $ 22
2026 | 18
2027 | 19
2028 | 18
2029 | 3
Thereafter | 31
Total | $ 111
Duke Energy Progress | Minimum |
Unconditional Purchase Obligations [Abstract] |
Net plant output (as a percent) | 18.00%
Duke Energy Progress | Maximum |
Unconditional Purchase Obligations [Abstract] |
Net plant output (as a percent) | 100.00%
Duke Energy Indiana |
Unconditional Purchase Obligations [Abstract] |
2025 | $ 33
2026 | 12
Total | $ 45

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- Definition Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Includes, but is not limited to, lease not yet commenced. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-4 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-3 + Details
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- Definition Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Includes, but is not limited to, lease not yet commenced. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-4 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-3 + Details
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