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v3.23.3

Revenue (Reserve for Credit Losses for Trade and Other Receivables) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | $ 199 | $ 135 | $ 216 | $ 121
Cumulative Change in Accounting Principle | 203 | 174 | 203 | 174
Write-Offs | (36) | (49) | (121) | (103)
Credit Loss Expense | 23 | 37 | 62 | 81
Other Adjustments | 17 | 51 | 46 | 75
Ending balance | 203 | 174 | 203 | 174
Duke Energy Carolinas |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 57 | 52 | 68 | 42
Cumulative Change in Accounting Principle | 56 | 62 | 56 | 62
Write-Offs | (14) | (19) | (54) | (44)
Credit Loss Expense | 5 | 10 | 18 | 23
Other Adjustments | 8 | 19 | 24 | 41
Ending balance | 56 | 62 | 56 | 62
Progress Energy |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 73 | 52 | 81 | 36
Cumulative Change in Accounting Principle | 77 | 67 | 77 | 67
Write-Offs | (20) | (26) | (60) | (45)
Credit Loss Expense | 15 | 20 | 33 | 39
Other Adjustments | 9 | 21 | 23 | 37
Ending balance | 77 | 67 | 77 | 67
Duke Energy Progress |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 43 | 31 | 44 | 21
Cumulative Change in Accounting Principle | 44 | 41 | 44 | 41
Write-Offs | (11) | (11) | (30) | (18)
Credit Loss Expense | 2 | 5 | 7 | 11
Other Adjustments | 10 | 16 | 23 | 27
Ending balance | 44 | 41 | 44 | 41
Duke Energy Florida |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 30 | 21 | 36 | 16
Cumulative Change in Accounting Principle | 34 | 26 | 34 | 26
Write-Offs | (8) | (15) | (28) | (28)
Credit Loss Expense | 13 | 15 | 26 | 28
Other Adjustments | (1) | 5 |  | 10
Ending balance | 34 | 26 | 34 | 26
Duke Energy Ohio |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 8 | 4 | 6 | 4
Cumulative Change in Accounting Principle | 8 | 6 | 8 | 6
Credit Loss Expense |  | 2 | 2 | 2
Ending balance | 8 | 6 | 8 | 6
Duke Energy Indiana |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 4 | 3 | 4 | 3
Cumulative Change in Accounting Principle | 5 | 4 | 5 | 4
Credit Loss Expense | 1 | 1 | 1 | 1
Ending balance | 5 | 4 | 5 | 4
Piedmont |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 13 | 15 | 14 | 15
Cumulative Change in Accounting Principle | 10 | 14 | 10 | 14
Write-Offs | (5) | (4) | (11) | (10)
Credit Loss Expense | 2 | 3 | 7 | 9
Ending balance | $ 10 | $ 14 | $ 10 | $ 14

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