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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, 2023 | Dec. 31, 2022
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | $ 189 | $ 795
Total Derivative Liabilities | 729 | 437
Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 61 | 582
Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 128 | 213
Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 409 | 193
Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 320 | 244
Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 82 | 478
Total Derivative Liabilities | 609 | 377
Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 63 | 317
Total Derivative Liabilities | 103 | 2
Foreign Currency Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 17 | 58
Foreign Currency Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 44 |
Foreign Currency Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 44 |
Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 31 | 101
Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 17 |
Designated as Hedging Instruments | Interest Rate Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 25 |
Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 26 |
Designated as Hedging Instruments | Foreign Currency Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 17 |
Designated as Hedging Instruments | Foreign Currency Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities |  | 40
Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 25 | 265
Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 57 | 213
Not Designated as Hedging Instruments | Commodity Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 354 | 175
Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 255 | 202
Not Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 5 | 216
Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 10 |
Not Designated as Hedging Instruments | Interest Rate Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 13 |
Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 39 | 2
Not Designated as Hedging Instruments | Foreign Currency Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities |  | 18
Duke Energy Carolinas |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 35 | 330
Total Derivative Liabilities | 260 | 127
Duke Energy Carolinas | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 6 | 226
Duke Energy Carolinas | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 29 | 104
Duke Energy Carolinas | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 179 | 96
Duke Energy Carolinas | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 81 | 31
Duke Energy Carolinas | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 27 | 236
Total Derivative Liabilities | 244 | 127
Duke Energy Carolinas | Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 8 | 94
Total Derivative Liabilities | 16 |
Duke Energy Carolinas | Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 | 132
Duke Energy Carolinas | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 26 | 104
Duke Energy Carolinas | Not Designated as Hedging Instruments | Commodity Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 177 | 96
Duke Energy Carolinas | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 67 | 31
Duke Energy Carolinas | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 5 | 94
Duke Energy Carolinas | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 3 |
Duke Energy Carolinas | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 2 |
Duke Energy Carolinas | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 14 |
Progress Energy |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 34 | 248
Total Derivative Liabilities | 234 | 66
Progress Energy | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 3 | 140
Progress Energy | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 31 | 108
Progress Energy | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 149 | 36
Progress Energy | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 85 | 30
Progress Energy | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 34 | 207
Total Derivative Liabilities | 199 | 66
Progress Energy | Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 41
Total Derivative Liabilities | 35 |
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 | 3 | 99
Progress Energy | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 31 | 108
Progress Energy | Not Designated as Hedging Instruments | Commodity Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 138 | 36
Progress Energy | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 61 | 30
Progress Energy | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 41
Progress Energy | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 11 |
Progress Energy | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 24 |
Duke Energy Progress |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 32 | 230
Total Derivative Liabilities | 219 | 48
Duke Energy Progress | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 | 122
Duke Energy Progress | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 31 | 108
Duke Energy Progress | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 149 | 18
Duke Energy Progress | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 70 | 30
Duke Energy Progress | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 32 | 207
Total Derivative Liabilities | 199 | 48
Duke Energy Progress | Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 23
Total Derivative Liabilities | 20 |
Duke Energy Progress | Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 | 99
Duke Energy Progress | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 31 | 108
Duke Energy Progress | Not Designated as Hedging Instruments | Commodity Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 138 | 18
Duke Energy Progress | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 61 | 30
Duke Energy Progress | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 23
Duke Energy Progress | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 11 |
Duke Energy Progress | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 9 |
Duke Energy Florida |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 2 | 17
Total Derivative Liabilities | 15 | 19
Duke Energy Florida | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 2 | 17
Duke Energy Florida | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities |  | 19
Duke Energy Florida | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 15 |
Duke Energy Florida | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 2 |
Total Derivative Liabilities |  | 19
Duke Energy Florida | Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 17
Total Derivative Liabilities | 15 |
Duke Energy Florida | Foreign Currency Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities |  | 0
Duke Energy Florida | Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 2 |
Duke Energy Florida | Not Designated as Hedging Instruments | Commodity Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities |  | 19
Duke Energy Florida | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 17
Duke Energy Florida | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 15 |
Duke Energy Ohio |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 | 5
Total Derivative Liabilities | 1 | 2
Duke Energy Ohio | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 | 5
Duke Energy Ohio | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 1 | 2
Duke Energy Ohio | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 | 5
Duke Energy Ohio | Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 1 | 2
Duke Energy Ohio | Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 | 5
Duke Energy Ohio | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 1 | 2
Duke Energy Indiana |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 25 | 110
Total Derivative Liabilities | 18 | 16
Duke Energy Indiana | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 18 | 110
Duke Energy Indiana | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 7 |
Duke Energy Indiana | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 18 | 16
Duke Energy Indiana | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 18 | 29
Total Derivative Liabilities | 18 | 16
Duke Energy Indiana | Interest Rate Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 7 | 81
Duke Energy Indiana | Not Designated as Hedging Instruments | Commodity Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 18 | 29
Duke Energy Indiana | Not Designated as Hedging Instruments | Commodity Contracts | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 18 | 16
Duke Energy Indiana | Not Designated as Hedging Instruments | Interest Rate Contracts | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets |  | 81
Duke Energy Indiana | Not Designated as Hedging Instruments | Interest Rate Contracts | Noncurrent assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 7 |
Piedmont |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 |
Total Derivative Liabilities | 147 | 168
Piedmont | Current Assets |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 |
Piedmont | Current Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 20 | 27
Piedmont | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | 127 | 141
Piedmont | Commodity Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Assets | 1 |
Total Derivative Liabilities | 147 | 168
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 | 20 | 27
Piedmont | Not Designated as Hedging Instruments | Commodity Contracts | Noncurrent Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total Derivative Liabilities | $ 127 | $ 141

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