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| | <period> |
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| <dei:EntityIncorporationStateCountryCode contextRef="ie74fe6b2fee84c3e9a0c6bbe91734b39_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGV4dHJlZ2lvbjplMzA0ZmIyMjQxMDU0ZTlkYmFlMjIxM2UxMzMyMzk4Nl8xMDU3_620075a4-b4ab-42fa-b545-2bdde9a83596"> DE </dei:EntityIncorporationStateCountryCode> |
| <dei:EntityAddressAddressLine1 contextRef="ie74fe6b2fee84c3e9a0c6bbe91734b39_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGV4dHJlZ2lvbjplMzA0ZmIyMjQxMDU0ZTlkYmFlMjIxM2UxMzMyMzk4Nl8xMDQ5_4bafd3fb-7568-46aa-a8ed-53cfc34b43be"> 550 South Tryon Street </dei:EntityAddressAddressLine1> |
| <dei:EntityAddressCityOrTown contextRef="ie74fe6b2fee84c3e9a0c6bbe91734b39_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGV4dHJlZ2lvbjplMzA0ZmIyMjQxMDU0ZTlkYmFlMjIxM2UxMzMyMzk4Nl8xMDU1_b18caf24-1690-4f2d-9049-c2f242081f98"> Charlotte </dei:EntityAddressCityOrTown> |
| <dei:EntityAddressStateOrProvince contextRef="ie74fe6b2fee84c3e9a0c6bbe91734b39_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGV4dHJlZ2lvbjplMzA0ZmIyMjQxMDU0ZTlkYmFlMjIxM2UxMzMyMzk4Nl8xMDUw_de144c42-e83e-48c4-abf9-835f552fee6e"> NC </dei:EntityAddressStateOrProvince> |
| <dei:EntityAddressPostalZipCode contextRef="ie74fe6b2fee84c3e9a0c6bbe91734b39_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGV4dHJlZ2lvbjplMzA0ZmIyMjQxMDU0ZTlkYmFlMjIxM2UxMzMyMzk4Nl8xMDUx_dfcbf7af-e23f-4de8-bf93-ed852195c058"> 28202-1803 </dei:EntityAddressPostalZipCode> |
| <dei:CityAreaCode contextRef="ie74fe6b2fee84c3e9a0c6bbe91734b39_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGV4dHJlZ2lvbjplMzA0ZmIyMjQxMDU0ZTlkYmFlMjIxM2UxMzMyMzk4Nl8xMDU2_aa3f741e-aa63-49ab-9bca-21a88488496d"> 704- </dei:CityAreaCode> |
| <dei:LocalPhoneNumber contextRef="ie74fe6b2fee84c3e9a0c6bbe91734b39_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGV4dHJlZ2lvbjplMzA0ZmIyMjQxMDU0ZTlkYmFlMjIxM2UxMzMyMzk4Nl8xMDUy_dfe3e423-9b2a-4b92-a2a5-a1d921c2e0f9"> 382-3853 </dei:LocalPhoneNumber> |
| <dei:WrittenCommunications contextRef="ie74fe6b2fee84c3e9a0c6bbe91734b39_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGFibGU6M2JhYjUyNTQ1ZGQ5NDZmOWI2OTFmM2UxNWI5YmVmZjkvdGFibGVyYW5nZTozYmFiNTI1NDVkZDk0NmY5YjY5MWYzZTE1YjliZWZmOV8wLTAtMS0xLTA_3cf5e6d5-4ee0-4c58-b090-a389d273e705"> false </dei:WrittenCommunications> |
| <dei:SolicitingMaterial contextRef="ie74fe6b2fee84c3e9a0c6bbe91734b39_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGFibGU6M2JhYjUyNTQ1ZGQ5NDZmOWI2OTFmM2UxNWI5YmVmZjkvdGFibGVyYW5nZTozYmFiNTI1NDVkZDk0NmY5YjY5MWYzZTE1YjliZWZmOV8xLTAtMS0xLTA_6330de81-5451-4e23-8b45-6603cd617842"> false </dei:SolicitingMaterial> |
| <dei:PreCommencementTenderOffer contextRef="ie74fe6b2fee84c3e9a0c6bbe91734b39_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGFibGU6M2JhYjUyNTQ1ZGQ5NDZmOWI2OTFmM2UxNWI5YmVmZjkvdGFibGVyYW5nZTozYmFiNTI1NDVkZDk0NmY5YjY5MWYzZTE1YjliZWZmOV8yLTAtMS0xLTA_595a9046-71bc-427b-9b39-f4949d7c5213"> false </dei:PreCommencementTenderOffer> |
| <dei:PreCommencementIssuerTenderOffer contextRef="ie74fe6b2fee84c3e9a0c6bbe91734b39_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGFibGU6M2JhYjUyNTQ1ZGQ5NDZmOWI2OTFmM2UxNWI5YmVmZjkvdGFibGVyYW5nZTozYmFiNTI1NDVkZDk0NmY5YjY5MWYzZTE1YjliZWZmOV8zLTAtMS0xLTA_777155a2-8799-431b-8cb9-57d13218f037"> false </dei:PreCommencementIssuerTenderOffer> |
| <dei:Security12bTitle contextRef="i3b057e6f5a93464994827b819ab4f262_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGFibGU6YWZlODQ4ZTZjNmFmNGY0ZmJkOWMyZDE3ODlkMGU2ZWYvdGFibGVyYW5nZTphZmU4NDhlNmM2YWY0ZjRmYmQ5YzJkMTc4OWQwZTZlZl8yLTItMS0xLTA_eb87d45d-89e6-4a83-b3ee-aa015bafa9e0"> Common Stock, $0.001 par value </dei:Security12bTitle> |
| <dei:TradingSymbol contextRef="i3b057e6f5a93464994827b819ab4f262_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGFibGU6YWZlODQ4ZTZjNmFmNGY0ZmJkOWMyZDE3ODlkMGU2ZWYvdGFibGVyYW5nZTphZmU4NDhlNmM2YWY0ZjRmYmQ5YzJkMTc4OWQwZTZlZl8yLTQtMS0xLTA_b6097c55-b3eb-4a93-8406-ea3037e12699"> DUK </dei:TradingSymbol> |
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| <dei:EntityEmergingGrowthCompany contextRef="ie74fe6b2fee84c3e9a0c6bbe91734b39_D20210225-20210225" id="id3VybDovL2RvY3MudjEvZG9jOjE1NDQwMWM4MjAyYjRhNGM5OGM1MjYyODVmYzAxYzJiL3NlYzoxNTQ0MDFjODIwMmI0YTRjOThjNTI2Mjg1ZmMwMWMyYl8xL2ZyYWc6ZTMwNGZiMjI0MTA1NGU5ZGJhZTIyMTNlMTMzMjM5ODYvdGV4dHJlZ2lvbjplMzA0ZmIyMjQxMDU0ZTlkYmFlMjIxM2UxMzMyMzk4Nl8xMDUz_5fe83de3-8f0c-4d0b-b67e-c6684a05dbbc"> false </dei:EntityEmergingGrowthCompany> |
| </xbrl> |