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Commitments and Contingencies (Purchased Power) (Details) - Purchased Power Contracts $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($)
Duke Energy Progress |
Unconditional Purchase Obligations [Abstract] |
2022 | $ 22
2023 | 22
2024 | 21
2025 | 22
2026 | 18
Thereafter | 45
Total | $ 150
Duke Energy Progress | Minimum |
Unconditional Purchase Obligations [Abstract] |
Net plant output percent | 18.00%
Duke Energy Progress | Maximum |
Unconditional Purchase Obligations [Abstract] |
Net plant output percent | 100.00%
Duke Energy Florida |
Unconditional Purchase Obligations [Abstract] |
2022 | $ 354
2023 | 374
2024 | 262
2025 | 91
Total | $ 1,081
Net plant output percent | 100.00%
Duke Energy Ohio |
Unconditional Purchase Obligations [Abstract] |
2022 | $ 53
2023 | 34
Total | $ 87
Net plant output percent | 15.00%

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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). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308 + 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). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308 + Details
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