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Revenue (Aging of Trade Receivables) (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Unbilled Receivables | $ 1,123 | $ 1,457
Current | 2,148 | 2,347
Deferred Payment Arrangements | 112 | 160
Trade and Other Receivables | 4,027 | 4,631
30-60 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 108 | 123
60-90 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 41 | 74
Financial Asset, 1 to 29 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 244 | 261
Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 251 | 209
Duke Energy Carolinas |  |
Financing Receivable, Past Due [Line Items] |  |
Unbilled Receivables | 441 | 486
Current | 593 | 577
Deferred Payment Arrangements | 36 | 57
Trade and Other Receivables | 1,236 | 1,334
Duke Energy Carolinas | 30-60 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 25 | 23
Duke Energy Carolinas | 60-90 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 9 | 25
Duke Energy Carolinas | Financial Asset, 1 to 29 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 58 | 96
Duke Energy Carolinas | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 74 | 70
Progress Energy |  |
Financing Receivable, Past Due [Line Items] |  |
Unbilled Receivables | 354 | 355
Current | 1,022 | 1,059
Deferred Payment Arrangements | 46 | 62
Trade and Other Receivables | 1,674 | 1,689
Progress Energy | 30-60 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 48 | 61
Progress Energy | 60-90 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 11 | 18
Progress Energy | Financial Asset, 1 to 29 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 124 | 60
Progress Energy | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 69 | 74
Duke Energy Progress |  |
Financing Receivable, Past Due [Line Items] |  |
Unbilled Receivables | 215 | 232
Current | 535 | 637
Deferred Payment Arrangements | 30 | 35
Trade and Other Receivables | 895 | 1,004
Duke Energy Progress | 30-60 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 37 | 49
Duke Energy Progress | 60-90 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 5 | 9
Duke Energy Progress | Financial Asset, 1 to 29 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 51 | 15
Duke Energy Progress | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 22 | 27
Duke Energy Florida |  |
Financing Receivable, Past Due [Line Items] |  |
Unbilled Receivables | 139 | 123
Current | 485 | 417
Deferred Payment Arrangements | 16 | 27
Trade and Other Receivables | 777 | 680
Duke Energy Florida | 30-60 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 11 | 12
Duke Energy Florida | 60-90 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 6 | 9
Duke Energy Florida | Financial Asset, 1 to 29 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 73 | 45
Duke Energy Florida | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 47 | 47
Duke Energy Ohio |  |
Financing Receivable, Past Due [Line Items] |  |
Unbilled Receivables | 3 | 20
Current | 27 | 15
Deferred Payment Arrangements | 3 | 4
Trade and Other Receivables | 97 | 79
Duke Energy Ohio | CRC |  |
Financing Receivable, Past Due [Line Items] |  |
Unbilled Receivables | 122 | 148
Duke Energy Ohio | 30-60 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 5 | 6
Duke Energy Ohio | 60-90 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 2 | 3
Duke Energy Ohio | Financial Asset, 1 to 29 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 3 | 5
Duke Energy Ohio | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 54 | 26
Duke Energy Indiana |  |
Financing Receivable, Past Due [Line Items] |  |
Unbilled Receivables | 26 | 28
Current | 104 | 52
Trade and Other Receivables | 182 | 116
Duke Energy Indiana | CRC |  |
Financing Receivable, Past Due [Line Items] |  |
Unbilled Receivables | 172 | 260
Duke Energy Indiana | 30-60 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 9 | 2
Duke Energy Indiana | 60-90 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 8 | 11
Duke Energy Indiana | Financial Asset, 1 to 29 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 15 | 17
Duke Energy Indiana | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 20 | 6
Piedmont |  |
Financing Receivable, Past Due [Line Items] |  |
Unbilled Receivables | 5 | 160
Current | 102 | 265
Deferred Payment Arrangements | 1 | 1
Trade and Other Receivables | 130 | 450
Piedmont | 30-60 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 5 | 3
Piedmont | 60-90 days |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 4 | 2
Piedmont | Financial Asset, 1 to 29 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | 8 | 15
Piedmont | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Trade and other receivables | $ 5 | $ 4

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