Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Average remaining useful life (in years)	13 years	14 years
Land	$ 2,569	$ 2,345
Other buildings and improvements	6,855	6,922
Equipment	3,863	3,409
Construction in process	7,850	8,372
Total property, plant and equipment	180,806	171,353
Total net property, plant and equipment	$ 123,303	$ 115,315
Other, estimated useful life, in years	10 years	12 years
Finance leases, gross	$ 670	$ 697
Accumulated amortization of finance leases		(3)
Nuclear fuel
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Nuclear fuel	3,518	3,303
Accumulated depreciation and amortization	(1,824)	(1,793)
Regulated
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Accumulated depreciation and amortization	$ (55,535)	$ (54,323)
Regulated | Electric generation, distribution and transmission
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Average remaining useful life (in years)	37 years	40 years
Plant - transmission and distribution	$ 137,836	$ 129,985
Regulated | Natural gas transmission and distribution
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Average remaining useful life (in years)	58 years	57 years
Plant - transmission and distribution	$ 15,333	$ 14,130
Regulated | Other buildings and improvements
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Average remaining useful life (in years)	41 years	42 years
Other buildings and improvements	$ 2,982	$ 2,887
Nonregulated
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Accumulated depreciation and amortization	(1,968)	(1,715)
Accumulated amortization of finance leases	(25)	(7)
Duke Energy Carolinas
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Land	617	581
Other buildings and improvements	1,227	1,455
Equipment	997	870
Construction in process	2,735	2,578
Total property, plant and equipment	58,382	56,670
Total net property, plant and equipment	39,292	36,774
Finance leases, gross	336	335
Accumulated amortization of finance leases	(84)	(67)
Duke Energy Carolinas | Nuclear fuel
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Nuclear fuel	2,003	1,866
Accumulated depreciation and amortization	(1,010)	(991)
Duke Energy Carolinas | Regulated
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Accumulated depreciation and amortization	(19,090)	(19,896)
Duke Energy Carolinas | Regulated | Electric generation, distribution and transmission
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Plant - transmission and distribution	49,547	48,107
Duke Energy Carolinas | Regulated | Other buildings and improvements
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Other buildings and improvements	1,256	1,213
Progress Energy
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Land	1,134	1,012
Other buildings and improvements	1,953	2,037
Equipment	1,252	1,104
Construction in process	3,657	3,941
Total property, plant and equipment	72,560	67,644
Total net property, plant and equipment	48,974	45,344
Finance leases, gross	620	615
Accumulated amortization of finance leases	(159)	(292)
Progress Energy | Nuclear fuel
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Nuclear fuel	1,515	1,437
Accumulated depreciation and amortization	(814)	(802)
Progress Energy | Regulated
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Accumulated depreciation and amortization	(23,586)	(22,300)
Progress Energy | Regulated | Electric generation, distribution and transmission
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Plant - transmission and distribution	62,351	57,436
Progress Energy | Regulated | Other buildings and improvements
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Other buildings and improvements	698	677
Duke Energy Progress
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Land	535	502
Other buildings and improvements	1,349	1,481
Equipment	753	654
Construction in process	1,884	1,661
Total property, plant and equipment	42,060	39,283
Total net property, plant and equipment	26,130	24,056
Finance leases, gross	512	552
Accumulated amortization of finance leases		(119)
Duke Energy Progress | Nuclear fuel
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Nuclear fuel	1,515	1,437
Accumulated depreciation and amortization	(814)	(802)
Duke Energy Progress | Regulated
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Accumulated depreciation and amortization	(15,930)	(15,227)
Duke Energy Progress | Regulated | Electric generation, distribution and transmission
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Plant - transmission and distribution	35,633	33,171
Duke Energy Progress | Regulated | Other buildings and improvements
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Other buildings and improvements	391	377
Duke Energy Florida
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Land	599	510
Other buildings and improvements	594	548
Equipment	499	450
Construction in process	1,773	2,280
Total property, plant and equipment	30,490	28,353
Total net property, plant and equipment	22,840	21,286
Finance leases, gross	108	63
Accumulated amortization of finance leases		(173)
Duke Energy Florida | Regulated
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Accumulated depreciation and amortization	(7,650)	(7,067)
Duke Energy Florida | Regulated | Electric generation, distribution and transmission
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Plant - transmission and distribution	26,718	24,265
Duke Energy Florida | Regulated | Other buildings and improvements
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Other buildings and improvements	307	300
Duke Energy Ohio
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Land	258	242
Other buildings and improvements	426	410
Equipment	542	474
Construction in process	385	427
Total property, plant and equipment	13,918	13,210
Total net property, plant and equipment	10,244	9,759
Duke Energy Ohio | Regulated
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Accumulated depreciation and amortization	(3,674)	(3,451)
Duke Energy Ohio | Regulated | Electric generation, distribution and transmission
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Plant - transmission and distribution	7,634	7,243
Duke Energy Ohio | Regulated | Natural gas transmission and distribution
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Plant - transmission and distribution	4,255	3,993
Duke Energy Ohio | Regulated | Other buildings and improvements
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Other buildings and improvements	418	421
Duke Energy Indiana
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Land	144	133
Other buildings and improvements	254	344
Equipment	490	442
Construction in process	406	427
Total property, plant and equipment	19,970	18,900
Total net property, plant and equipment	13,122	12,399
Finance leases, gross	10	10
Accumulated amortization of finance leases	(4)	(4)
Duke Energy Indiana | Regulated
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Accumulated depreciation and amortization	(6,848)	(6,501)
Duke Energy Indiana | Regulated | Electric generation, distribution and transmission
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Plant - transmission and distribution	18,304	17,199
Duke Energy Indiana | Regulated | Other buildings and improvements
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Other buildings and improvements	372	355
Piedmont
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Land	391	352
Other buildings and improvements	498	365
Equipment	170	143
Construction in process	405	690
Total property, plant and equipment	12,780	11,908
Total net property, plant and equipment	10,348	9,649
Piedmont | Regulated
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Accumulated depreciation and amortization	(2,432)	(2,259)
Piedmont | Regulated | Natural gas transmission and distribution
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Plant - transmission and distribution	11,078	10,137
Piedmont | Regulated | Other buildings and improvements
Public Utilities, Property, Plant and Equipment, Net [Abstract]
Other buildings and improvements	$ 238	$ 221