Regulatory Matters (Schedule of Regulatory Assets and Liabilities) (Details) - USD ($) $ in Millions	Jan. 31, 2024	Dec. 31, 2023	Aug. 31, 2023	Jun. 30, 2023	May 31, 2023	Mar. 06, 2023	Feb. 28, 2023	Dec. 31, 2022
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		$ 17,266						$ 18,130
Less: Current portion		3,648						3,485
Total noncurrent regulatory assets		13,618						14,645
Total regulatory liabilities		15,408						15,048
Less: Current portion		1,369						1,466
Total noncurrent regulatory liabilities		14,039						13,582
Net regulatory liability related to income taxes
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		5,901						6,462
COR regulatory liability
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		5,497						5,151
AROs – nuclear and other
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		1,673						1,038
Hedge costs deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		443						683
Accrued pension and OPEB
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		266						211
Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		137						35
DSM/EE
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		89						88
DOE Settlement
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		32						154
Provision for rate refunds
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		15						78
Other
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		1,355						1,148
AROs – coal ash
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		3,214						3,205
AROs – nuclear and other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		1,179						945
Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		2,486						3,866
Accrued pension and OPEB
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		2,389						2,336
Storm cost securitized balance, net
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		890						940
Nuclear asset securitized balance, net
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		830						881
Debt fair value adjustment
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		774						829
Hedge costs deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		749						378
Storm cost deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		407						687
COR regulatory asset
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		371						221
Post-in-service carrying costs (PISCC) and deferred operating expenses
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		357						359
Retired generation facilities
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		275						316
Deferred asset – Lee and Harris COLA
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		252						288
Customer connect project
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		251						271
Advanced metering infrastructure (AMI)
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		243						283
Incremental COVID-19 expenses
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		237						210
Vacation accrual
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		228						222
Grid Deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		210						136
Demand side management (DSM)/Energy efficiency (EE)
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		201						189
CEP deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		193						190
NCEMPA deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		172						157
Derivatives – natural gas supply contracts
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		147						168
Deferred pipeline integrity costs
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		133						121
Nuclear deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		131						154
COR settlement
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		115						120
Decoupling
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		115						42
Deferred coal ash handling system costs
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		86						92
Qualifying facility contract buyouts
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		68						81
Network Integration Transmission Services deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		31						23
Transmission expansion obligation
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		30						31
East Bend deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		28						33
Propane caverns
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		26						26
Tennessee ARM Deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		20						3
Other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		428						327
Progress Energy
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		8,091						8,979
Less: Current portion		1,661						1,833
Total noncurrent regulatory assets		6,430						7,146
Total regulatory liabilities		5,501						5,329
Less: Current portion		418						576
Total noncurrent regulatory liabilities		5,083						4,753
Progress Energy | Net regulatory liability related to income taxes
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		2,008						2,192
Progress Energy | COR regulatory liability
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		2,805						2,269
Progress Energy | Hedge costs deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		208						252
Progress Energy | Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		14
Progress Energy | DOE Settlement
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		32						154
Progress Energy | Provision for rate refunds
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		4						28
Progress Energy | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		430						434
Progress Energy | AROs – coal ash
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		1,230						1,429
Progress Energy | AROs – nuclear and other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		1,127						884
Progress Energy | Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		1,173						2,060
Progress Energy | Accrued pension and OPEB
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		757						759
Progress Energy | Storm cost securitized balance, net
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		682						720
Progress Energy | Nuclear asset securitized balance, net
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		830						881
Progress Energy | Hedge costs deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		323						128
Progress Energy | Storm cost deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		298						559
Progress Energy | COR regulatory asset
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		337						221
Progress Energy | Post-in-service carrying costs (PISCC) and deferred operating expenses
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		42						42
Progress Energy | Retired generation facilities
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		220						243
Progress Energy | Deferred asset – Lee and Harris COLA
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		15						21
Progress Energy | Customer connect project
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		125						136
Progress Energy | Advanced metering infrastructure (AMI)
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		92						111
Progress Energy | Incremental COVID-19 expenses
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		80						78
Progress Energy | Vacation accrual
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		43						43
Progress Energy | Grid Deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		51						40
Progress Energy | Demand side management (DSM)/Energy efficiency (EE)
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		191						188
Progress Energy | NCEMPA deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		172						157
Progress Energy | Nuclear deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		42						64
Progress Energy | COR settlement
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		30						32
Progress Energy | Decoupling
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		15
Progress Energy | Deferred coal ash handling system costs
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		21						25
Progress Energy | Qualifying facility contract buyouts
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		68						81
Progress Energy | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		127						77
Duke Energy Carolinas
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		5,480						5,388
Less: Current portion		1,564						1,095
Total noncurrent regulatory assets		3,916						4,293
Total regulatory liabilities		6,577						6,313
Less: Current portion		587						530
Total noncurrent regulatory liabilities		5,990						5,783
Duke Energy Carolinas | Net regulatory liability related to income taxes
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		2,200						2,475
Duke Energy Carolinas | COR regulatory liability
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		1,641						1,769
Duke Energy Carolinas | AROs – nuclear and other
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		1,673						1,038
Duke Energy Carolinas | Hedge costs deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		158						350
Duke Energy Carolinas | Accrued pension and OPEB
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		106						44
Duke Energy Carolinas | Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		85
Duke Energy Carolinas | DSM/EE
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		87						86
Duke Energy Carolinas | Provision for rate refunds
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		11						50
Duke Energy Carolinas | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		616						501
Duke Energy Carolinas | AROs – coal ash
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		1,559						1,391
Duke Energy Carolinas | Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		1,293						1,614
Duke Energy Carolinas | Deferred fuel and purchased power | NCUC
Regulatory Assets Liabilities [Line Items]
Total regulatory assets							$ 998
Duke Energy Carolinas | Deferred fuel and purchased power | PSCSC
Regulatory Assets Liabilities [Line Items]
Total regulatory assets			$ 310
Duke Energy Carolinas | Accrued pension and OPEB
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		671						614
Duke Energy Carolinas | Storm cost securitized balance, net
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		208						220
Duke Energy Carolinas | Hedge costs deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		405						228
Duke Energy Carolinas | Storm cost deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		97						114
Duke Energy Carolinas | Post-in-service carrying costs (PISCC) and deferred operating expenses
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		48						47
Duke Energy Carolinas | Retired generation facilities
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		26						39
Duke Energy Carolinas | Deferred asset – Lee and Harris COLA
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		237						267
Duke Energy Carolinas | Customer connect project
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		58						62
Duke Energy Carolinas | Advanced metering infrastructure (AMI)
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		125						139
Duke Energy Carolinas | Incremental COVID-19 expenses
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		152						127
Duke Energy Carolinas | Vacation accrual
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		87						84
Duke Energy Carolinas | Grid Deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		159						96
Duke Energy Carolinas | Nuclear deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		89						90
Duke Energy Carolinas | COR settlement
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		85						88
Duke Energy Carolinas | Deferred coal ash handling system costs
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		65						67
Duke Energy Carolinas | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		116						101
Duke Energy Progress
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		5,488						5,414
Less: Current portion		942						690
Total noncurrent regulatory assets		4,546						4,724
Total regulatory liabilities		4,675						4,452
Less: Current portion		300						332
Total noncurrent regulatory liabilities		4,375						4,120
Duke Energy Progress | Net regulatory liability related to income taxes
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		1,420						1,559
Duke Energy Progress | COR regulatory liability
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		2,805						2,269
Duke Energy Progress | Hedge costs deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		87						252
Duke Energy Progress | Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		14
Duke Energy Progress | Provision for rate refunds
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		4						28
Duke Energy Progress | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		345						344
Duke Energy Progress | AROs – coal ash
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		1,218						1,418
Duke Energy Progress | AROs – nuclear and other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		1,110						869
Duke Energy Progress | Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		579						705
Duke Energy Progress | Deferred fuel and purchased power | NCUC
Regulatory Assets Liabilities [Line Items]
Total regulatory assets				$ 445
Duke Energy Progress | Deferred fuel and purchased power | PSCSC
Regulatory Assets Liabilities [Line Items]
Total regulatory assets					$ 79
Duke Energy Progress | Accrued pension and OPEB
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		408						417
Duke Energy Progress | Storm cost securitized balance, net
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		682						720
Duke Energy Progress | Hedge costs deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		260						55
Duke Energy Progress | Storm cost deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		228						234
Duke Energy Progress | Post-in-service carrying costs (PISCC) and deferred operating expenses
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		42						42
Duke Energy Progress | Retired generation facilities
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		126						149
Duke Energy Progress | Deferred asset – Lee and Harris COLA
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		15						21
Duke Energy Progress | Customer connect project
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		49						54
Duke Energy Progress | Advanced metering infrastructure (AMI)
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		68						81
Duke Energy Progress | Incremental COVID-19 expenses
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		80						78
Duke Energy Progress | Vacation accrual
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		43						43
Duke Energy Progress | Grid Deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		51						40
Duke Energy Progress | Demand side management (DSM)/Energy efficiency (EE)
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		182						180
Duke Energy Progress | NCEMPA deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		172						157
Duke Energy Progress | Nuclear deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		42						64
Duke Energy Progress | COR settlement
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		30						32
Duke Energy Progress | Decoupling
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		15
Duke Energy Progress | Deferred coal ash handling system costs
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		21						25
Duke Energy Progress | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		67						30
Duke Energy Florida
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		2,603						3,565
Less: Current portion		720						1,143
Total noncurrent regulatory assets		1,883						2,422
Total regulatory liabilities		826						877
Less: Current portion		118						244
Total noncurrent regulatory liabilities		708						633
Duke Energy Florida | Net regulatory liability related to income taxes
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		588						633
Duke Energy Florida | Hedge costs deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		121
Duke Energy Florida | DOE Settlement
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		32						154
Duke Energy Florida | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		85						90
Duke Energy Florida | AROs – coal ash
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		12						11
Duke Energy Florida | AROs – nuclear and other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		17						15
Duke Energy Florida | Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		594						1,355
Duke Energy Florida | Deferred fuel and purchased power | FPSC
Regulatory Assets Liabilities [Line Items]
Total regulatory assets						$ 469		1,200
Duke Energy Florida | Deferred fuel and purchased power | FPSC | Subsequent Event
Regulatory Assets Liabilities [Line Items]
Total regulatory assets	$ 120
Duke Energy Florida | Accrued pension and OPEB
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		349						342
Duke Energy Florida | Nuclear asset securitized balance, net
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		830						881
Duke Energy Florida | Hedge costs deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		63						73
Duke Energy Florida | Storm cost deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		70						325
Duke Energy Florida | COR regulatory asset
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		337						221
Duke Energy Florida | Retired generation facilities
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		94						94
Duke Energy Florida | Customer connect project
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		76						82
Duke Energy Florida | Advanced metering infrastructure (AMI)
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		24						30
Duke Energy Florida | Qualifying facility contract buyouts
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		68						81
Duke Energy Florida | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		69						55
Duke Energy Ohio
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		749						684
Less: Current portion		73						103
Total noncurrent regulatory assets		676						581
Total regulatory liabilities		553						633
Less: Current portion		56						99
Total noncurrent regulatory liabilities		497						534
Duke Energy Ohio | Net regulatory liability related to income taxes
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		466						496
Duke Energy Ohio | COR regulatory liability
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities								9
Duke Energy Ohio | Accrued pension and OPEB
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		17						21
Duke Energy Ohio | Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		15						35
Duke Energy Ohio | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		55						72
Duke Energy Ohio | AROs – coal ash
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		17
Duke Energy Ohio | Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		20						54
Duke Energy Ohio | Accrued pension and OPEB
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		123						129
Duke Energy Ohio | Storm cost deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		12						14
Duke Energy Ohio | COR regulatory asset
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		34
Duke Energy Ohio | Post-in-service carrying costs (PISCC) and deferred operating expenses
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		15						15
Duke Energy Ohio | Customer connect project
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		49						54
Duke Energy Ohio | Advanced metering infrastructure (AMI)
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		13						18
Duke Energy Ohio | CEP deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		193						190
Duke Energy Ohio | Deferred pipeline integrity costs
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		30						28
Duke Energy Ohio | Deferred coal ash handling system costs
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		25
Duke Energy Ohio | Network Integration Transmission Services deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		31						23
Duke Energy Ohio | Transmission expansion obligation
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		30						31
Duke Energy Ohio | East Bend deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		28						33
Duke Energy Ohio | Propane caverns
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		26						26
Duke Energy Ohio | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		103						69
Duke Energy Indiana
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		996						1,124
Less: Current portion		102						249
Total noncurrent regulatory assets		894						875
Total regulatory liabilities		1,668						1,641
Less: Current portion		209						187
Total noncurrent regulatory liabilities		1,459						1,454
Duke Energy Indiana | Net regulatory liability related to income taxes
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		794						840
Duke Energy Indiana | COR regulatory liability
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		496						531
Duke Energy Indiana | Hedge costs deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		77						81
Duke Energy Indiana | Accrued pension and OPEB
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		109						104
Duke Energy Indiana | Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		23
Duke Energy Indiana | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		169						85
Duke Energy Indiana | AROs – coal ash
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		408						385
Duke Energy Indiana | Deferred fuel and purchased power
Regulatory Assets Liabilities [Line Items]
Total regulatory assets								138
Duke Energy Indiana | Accrued pension and OPEB
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		208						214
Duke Energy Indiana | Hedge costs deferrals
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		19						20
Duke Energy Indiana | Post-in-service carrying costs (PISCC) and deferred operating expenses
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		252						255
Duke Energy Indiana | Retired generation facilities
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		29						34
Duke Energy Indiana | Customer connect project
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		19						19
Duke Energy Indiana | Advanced metering infrastructure (AMI)
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		13						15
Duke Energy Indiana | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		48						44
Piedmont
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		571						511
Less: Current portion		161						119
Total noncurrent regulatory assets		410						392
Total regulatory liabilities		1,086						1,098
Less: Current portion		98						74
Total noncurrent regulatory liabilities		988						1,024
Piedmont | Net regulatory liability related to income taxes
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		433						459
Piedmont | COR regulatory liability
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		555						573
Piedmont | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory liabilities		98						66
Piedmont | AROs – nuclear and other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		26						27
Piedmont | Accrued pension and OPEB
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		129						119
Piedmont | Vacation accrual
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		13						12
Piedmont | Derivatives – natural gas supply contracts
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		147						168
Piedmont | Deferred pipeline integrity costs
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		103						93
Piedmont | Decoupling
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		75						42
Piedmont | Tennessee ARM Deferral
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		20						3
Piedmont | Other
Regulatory Assets Liabilities [Line Items]
Total regulatory assets		$ 58						$ 47