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Derivatives and Hedging (Location and Fair Value Amounts of Derivatives Reflected in the Consolidated Balance Sheets) (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | $ 382 | $ 434
Total Derivative Liabilities | 244 | 319
Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 116 | 267
Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 266 | 167
Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 131 | 145
Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 113 | 174
Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 56 | 109
Total Derivative Liabilities | 210 | 242
Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 170 | 320
Total Derivative Liabilities | 7 | 3
Foreign Currency Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 27 | 74
Foreign Currency Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 156 | 5
Foreign Currency Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 156 |
Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 25 | 108
Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 20 | 52
Designated as Hedging Instruments | Foreign Currency Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 27 |
Designated as Hedging Instruments | Foreign Currency Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities |  | 39
Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 28 | 49
Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 28 | 60
Not Designated as Hedging Instruments | Commodity Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 104 | 108
Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 106 | 134
Not Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 63 | 110
Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 62 |
Not Designated as Hedging Instruments | Interest Rate Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities |  | 2
Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 7 | 1
Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 50
Not Designated as Hedging Instruments | Foreign Currency Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities |  | 35
Not Designated as Hedging Instruments | Foreign Currency Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 5
Duke Energy Carolinas |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 101 | 94
Total Derivative Liabilities | 88 | 88
Duke Energy Carolinas | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 43 | 39
Duke Energy Carolinas | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 58 | 55
Duke Energy Carolinas | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 56 | 57
Duke Energy Carolinas | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 32 | 31
Duke Energy Carolinas | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 21 | 49
Total Derivative Liabilities | 85 | 88
Duke Energy Carolinas | Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 80 | 45
Total Derivative Liabilities | 3 |
Duke Energy Carolinas | Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 9 | 20
Duke Energy Carolinas | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 12 | 29
Duke Energy Carolinas | Not Designated as Hedging Instruments | Commodity Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 53 | 57
Duke Energy Carolinas | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 32 | 31
Duke Energy Carolinas | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 34 | 19
Duke Energy Carolinas | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 46 |
Duke Energy Carolinas | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 3 |
Duke Energy Carolinas | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 26
Progress Energy |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 67 | 127
Total Derivative Liabilities | 48 | 58
Progress Energy | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 36 | 72
Progress Energy | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 31 | 55
Progress Energy | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 21 | 34
Progress Energy | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 27 | 24
Progress Energy | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 23 | 49
Total Derivative Liabilities | 46 | 56
Progress Energy | Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 44 | 78
Total Derivative Liabilities | 2 | 2
Progress Energy | Foreign Currency Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities |  | 0
Progress Energy | Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 7 | 17
Progress Energy | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 16 | 32
Progress Energy | Not Designated as Hedging Instruments | Commodity Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 25 | 32
Progress Energy | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 21 | 24
Progress Energy | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 29 | 55
Progress Energy | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 15 |
Progress Energy | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | (4) | 2
Progress Energy | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 6 |
Progress Energy | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 23
Duke Energy Progress |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 52 | 109
Total Derivative Liabilities | 47 | 57
Duke Energy Progress | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 36 | 61
Duke Energy Progress | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 16 | 48
Duke Energy Progress | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 20 | 33
Duke Energy Progress | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 27 | 24
Duke Energy Progress | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 23 | 49
Total Derivative Liabilities | 46 | 56
Duke Energy Progress | Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 29 | 60
Total Derivative Liabilities | 1 | 1
Duke Energy Progress | Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 7 | 17
Duke Energy Progress | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 16 | 32
Duke Energy Progress | Not Designated as Hedging Instruments | Commodity Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 25 | 32
Duke Energy Progress | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 21 | 24
Duke Energy Progress | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 29 | 44
Duke Energy Progress | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | (5) | 1
Duke Energy Progress | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 6 |
Duke Energy Progress | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 16
Duke Energy Florida |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 15 | 18
Total Derivative Liabilities | 1 | 1
Duke Energy Florida | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 | 11
Duke Energy Florida | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 14 | 7
Duke Energy Florida | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 1 | 1
Duke Energy Florida | Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 15 | 18
Total Derivative Liabilities | 1 | 1
Duke Energy Florida | Foreign Currency Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities |  | 0
Duke Energy Florida | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 | 11
Duke Energy Florida | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 14 |
Duke Energy Florida | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 1 | 1
Duke Energy Florida | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 7
Duke Energy Ohio |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 1
Total Derivative Liabilities | 1 | 1
Duke Energy Ohio | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 1
Duke Energy Ohio | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 1 | 1
Duke Energy Ohio | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 1
Duke Energy Ohio | Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 1 | 1
Duke Energy Ohio | Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 1
Duke Energy Ohio | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 1 | 1
Duke Energy Indiana |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 12 | 44
Total Derivative Liabilities | 9 | 3
Duke Energy Indiana | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 11 | 44
Duke Energy Indiana | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 |
Duke Energy Indiana | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 9 | 3
Duke Energy Indiana | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 11 | 8
Total Derivative Liabilities | 7 | 3
Duke Energy Indiana | Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 | 36
Total Derivative Liabilities | 2 |
Duke Energy Indiana | Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 11 | 8
Duke Energy Indiana | Not Designated as Hedging Instruments | Commodity Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 7 | 3
Duke Energy Indiana | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 36
Duke Energy Indiana | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 |
Duke Energy Indiana | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 2 |
Piedmont |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 1
Total Derivative Liabilities | 72 | 94
Piedmont | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 1
Piedmont | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 19 | 16
Piedmont | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 53 | 78
Piedmont | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 1
Total Derivative Liabilities | 72 | 94
Piedmont | Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 1
Piedmont | Not Designated as Hedging Instruments | Commodity Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 19 | 16
Piedmont | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | $ 53 | $ 78

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- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-7A Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-22 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-21 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-20 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-15 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483466/210-20-50-3 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 4D -Subparagraph (c)(2) -SubTopic 20 -Topic 860 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-4D + Details
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Name: | dei_LegalEntityAxis=duk_PiedmontNaturalGasMember
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Data Type: | na
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