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v3.22.4

Summary of Significant Accounting Policies (Accounts Payable and Supplier Invoices Sold) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Payables [Line Items] |  |
Outstanding Accounts Payable Balance Sold | $ 87 | $ 19
Suppliers Invoices Settled Through The Program | 301 | 122
Duke Energy Carolinas |  |
Payables [Line Items] |  |
Outstanding Accounts Payable Balance Sold | 6 |
Suppliers Invoices Settled Through The Program | 29 |
Progress Energy |  |
Payables [Line Items] |  |
Outstanding Accounts Payable Balance Sold | 19 | 9
Suppliers Invoices Settled Through The Program | 85 | 10
Duke Energy Progress |  |
Payables [Line Items] |  |
Outstanding Accounts Payable Balance Sold | 8 |
Suppliers Invoices Settled Through The Program | 26 |
Duke Energy Florida |  |
Payables [Line Items] |  |
Outstanding Accounts Payable Balance Sold | 11 | 9
Suppliers Invoices Settled Through The Program | 59 | 10
Duke Energy Ohio |  |
Payables [Line Items] |  |
Outstanding Accounts Payable Balance Sold | 5 | 6
Suppliers Invoices Settled Through The Program | 38 | 12
Duke Energy Indiana |  |
Payables [Line Items] |  |
Suppliers Invoices Settled Through The Program | 2 |
Piedmont |  |
Payables [Line Items] |  |
Outstanding Accounts Payable Balance Sold | 57 | 4
Suppliers Invoices Settled Through The Program | $ 147 | $ 100

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