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Condensed Consolidated Balance Sheets - Duke Energy Indiana (Parenthetical) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Allowance for doubtful accounts - receivables | $ 55 | $ 40
Duke Energy Indiana |  |
Allowance for doubtful accounts - receivables | $ 5 | $ 4

X
- Definition Amount of allowance related to receivables from customers, clients, or other third-parties, and receivables classified as other due within one year or the normal operating cycle, if longer, that are expected to be uncollectible. + References No definition available. + Details
Name: | duk_AllowanceforDoubtfulAccountsandOtherReceivablesCurrent
Namespace Prefix: | duk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyIndianaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |