Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Current Assets
Cash and cash equivalents		$ 409
Receivables (net of allowance for doubtful accounts)	$ 2,812	3,106
Receivables of VIEs (net of allowance for doubtful accounts)	1,016	1,309
Inventory	4,100	3,584
Assets held for sale	390	356
Regulatory assets (includes amounts related to VIEs)	3,760	3,485
Other (including amounts related to VIEs)	633	973
Total current assets	13,088	13,222
Property, Plant and Equipment
Cost	168,506	163,839
Accumulated depreciation and amortization	(54,030)	(52,100)
Facilities to be retired, net	4	9
Net property, plant and equipment	114,480	111,748
Other Noncurrent Assets
Goodwill	19,303	19,303
Other Noncurrent Assets: Regulatory assets	14,147	14,645
Nuclear decommissioning trust funds	9,565	8,637
Operating lease right-of-use assets, net	1,009	1,042
Investments in equity method unconsolidated affiliates	479	455
Assets held for sale	4,561	5,634
Other	3,444	3,400
Total other noncurrent assets	52,508	53,116
Total Assets	180,076	178,086
Current Liabilities
Accounts payable	3,225	4,754
Notes payable and commercial paper	3,455	3,952
Taxes accrued	708	722
Interest accrued	714	626
Current maturities of long-term debt (includes amounts related to VIEs)	4,609	3,878
Asset retirement obligations	692	773
Regulatory liabilities	1,303	1,466
Liabilities associated with assets held for sale	575	535
Other	2,094	2,167
Total current liabilities	17,375	18,873
Long-Term Debt (includes amounts related to VIEs)	69,914	65,873
Other Noncurrent Liabilities
Deferred income taxes	10,210	9,964
Total noncurrent ARO	11,991	11,955
Regulatory liabilities	13,944	13,582
Operating lease liabilities	841	876
Accrued pension and other post-retirement benefit costs	808	832
Investment tax credits	849	849
Liabilities associated with assets held for sale	1,720	1,927
Other	1,353	1,502
Total other noncurrent liabilities	41,716	41,487
Commitments and Contingencies
Equity
Common stock	1	1
Additional paid-in capital	44,866	44,862
Retained earnings	1,615	2,637
Accumulated other comprehensive (loss) income	(111)	(140)
Total Parent stockholders' equity	48,333	49,322
Noncontrolling interests	2,738	2,531
Total equity	51,071	51,853
Total Liabilities and Equity	$ 180,076	$ 178,086
Common stock, shares authorized (in shares)	2,000,000,000	2,000,000,000
Common stock, shares outstanding (in shares)	771,000,000	770,000,000
VIEs
Current Assets
Regulatory assets (includes amounts related to VIEs)	$ 107	$ 106
Other (including amounts related to VIEs)	73	116
Other Noncurrent Assets
Other Noncurrent Assets: Regulatory assets	1,667	1,715
Other	45	52
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	426	350
Long-Term Debt (includes amounts related to VIEs)	3,051	3,108
Preferred stock, Series A
Equity
Preferred stock	973	973
Preferred stock, Series B
Equity
Preferred stock	989	989
Duke Energy Carolinas
Current Assets
Cash and cash equivalents	20	44
Receivables (net of allowance for doubtful accounts)	324	338
Receivables of VIEs (net of allowance for doubtful accounts)	855	928
Inventory	1,403	1,164
Regulatory assets (includes amounts related to VIEs)	1,483	1,095
Other (including amounts related to VIEs)	61	216
Total current assets	4,302	4,175
Property, Plant and Equipment
Cost	56,116	54,650
Accumulated depreciation and amortization	(19,328)	(18,669)
Net property, plant and equipment	36,788	35,981
Other Noncurrent Assets
Other Noncurrent Assets: Regulatory assets	4,056	4,293
Nuclear decommissioning trust funds	5,332	4,783
Operating lease right-of-use assets, net	71	78
Other	1,005	1,036
Total other noncurrent assets	10,464	10,190
Total Assets	51,554	50,346
Current Liabilities
Accounts payable	821	1,472
Taxes accrued	276	228
Interest accrued	169	120
Current maturities of long-term debt (includes amounts related to VIEs)	18	1,018
Asset retirement obligations	237	261
Regulatory liabilities	464	530
Other	598	580
Total current liabilities	3,300	5,651
Long-Term Debt (includes amounts related to VIEs)	15,648	12,948
Other Noncurrent Liabilities
Deferred income taxes	4,302	4,153
Total noncurrent ARO	5,166	5,121
Regulatory liabilities	5,887	5,783
Operating lease liabilities	72	83
Accrued pension and other post-retirement benefit costs	36	38
Investment tax credits	298	300
Other	561	527
Total other noncurrent liabilities	16,322	16,005
Commitments and Contingencies
Equity
Member's equity	15,990	15,448
Accumulated other comprehensive (loss) income	(6)	(6)
Total member's equity	15,984	15,442
Total Liabilities and Equity	51,554	50,346
Duke Energy Carolinas | Affiliated Entity
Current Assets
Receivables (net of allowance for doubtful accounts)	156	390
Current Liabilities
Accounts payable	139	209
Notes payable to affiliated companies	578	1,233
Long-Term Debt (includes amounts related to VIEs)	300	300
Duke Energy Carolinas | VIEs
Current Assets
Regulatory assets (includes amounts related to VIEs)	12	12
Other (including amounts related to VIEs)	8
Other Noncurrent Assets
Other Noncurrent Assets: Regulatory assets	202	208
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	10	10
Long-Term Debt (includes amounts related to VIEs)	701	689
Progress Energy
Current Assets
Cash and cash equivalents	77	108
Receivables (net of allowance for doubtful accounts)	289	318
Receivables of VIEs (net of allowance for doubtful accounts)	1,312	1,289
Inventory	1,817	1,579
Regulatory assets (includes amounts related to VIEs)	1,927	1,833
Other (including amounts related to VIEs)	146	342
Total current assets	5,616	5,491
Property, Plant and Equipment
Cost	66,881	64,822
Accumulated depreciation and amortization	(21,399)	(20,584)
Net property, plant and equipment	45,482	44,238
Other Noncurrent Assets
Goodwill	3,655	3,655
Other Noncurrent Assets: Regulatory assets	6,819	7,146
Nuclear decommissioning trust funds	4,233	3,855
Operating lease right-of-use assets, net	581	628
Other	1,105	1,066
Total other noncurrent assets	16,393	16,350
Total Assets	67,491	66,079
Current Liabilities
Accounts payable	1,078	1,481
Taxes accrued	288	135
Interest accrued	235	206
Current maturities of long-term debt (includes amounts related to VIEs)	1,571	697
Asset retirement obligations	256	289
Regulatory liabilities	455	576
Other	813	782
Total current liabilities	5,950	5,721
Long-Term Debt (includes amounts related to VIEs)	21,718	21,592
Other Noncurrent Liabilities
Deferred income taxes	5,250	5,147
Total noncurrent ARO	5,890	5,892
Regulatory liabilities	5,023	4,753
Operating lease liabilities	503	546
Accrued pension and other post-retirement benefit costs	281	292
Investment tax credits	361	358
Other	215	222
Total other noncurrent liabilities	17,523	17,210
Commitments and Contingencies
Equity
Additional paid-in capital	11,830	11,832
Retained earnings	10,329	9,585
Accumulated other comprehensive (loss) income	(9)	(11)
Total equity	22,150	21,406
Total Liabilities and Equity	$ 67,491	$ 66,079
Common stock, shares authorized (in shares)	100	100
Common stock, shares outstanding (in shares)	100	100
Progress Energy | Affiliated Entity
Current Assets
Receivables (net of allowance for doubtful accounts)	$ 23	$ 22
Notes receivable from affiliated companies	25
Current Liabilities
Accounts payable	438	712
Notes payable to affiliated companies	816	843
Long-Term Debt (includes amounts related to VIEs)	150	150
Progress Energy | VIEs
Current Assets
Regulatory assets (includes amounts related to VIEs)	95	95
Other (including amounts related to VIEs)	61	88
Other Noncurrent Assets
Other Noncurrent Assets: Regulatory assets	1,465	1,507
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	416	340
Long-Term Debt (includes amounts related to VIEs)	1,956	2,003
Duke Energy Progress
Current Assets
Cash and cash equivalents	21	49
Receivables (net of allowance for doubtful accounts)	158	167
Receivables of VIEs (net of allowance for doubtful accounts)	694	793
Inventory	1,164	1,006
Regulatory assets (includes amounts related to VIEs)	888	690
Other (including amounts related to VIEs)	61	174
Total current assets	3,053	2,904
Property, Plant and Equipment
Cost	39,779	38,875
Accumulated depreciation and amortization	(14,598)	(14,201)
Net property, plant and equipment	25,181	24,674
Other Noncurrent Assets
Other Noncurrent Assets: Regulatory assets	4,658	4,724
Nuclear decommissioning trust funds	3,828	3,430
Operating lease right-of-use assets, net	343	370
Other	651	650
Total other noncurrent assets	9,480	9,174
Total Assets	37,714	36,752
Current Liabilities
Accounts payable	506	601
Taxes accrued	121	77
Interest accrued	120	101
Current maturities of long-term debt (includes amounts related to VIEs)	370	369
Asset retirement obligations	256	288
Regulatory liabilities	267	332
Other	440	384
Total current liabilities	2,330	2,898
Long-Term Debt (includes amounts related to VIEs)	11,521	10,568
Other Noncurrent Liabilities
Deferred income taxes	2,571	2,477
Total noncurrent ARO	5,555	5,535
Regulatory liabilities	4,284	4,120
Operating lease liabilities	313	335
Accrued pension and other post-retirement benefit costs	155	160
Investment tax credits	128	124
Other	89	76
Total other noncurrent liabilities	13,095	12,827
Commitments and Contingencies
Equity
Total member's equity	10,618	10,309
Total Liabilities and Equity	37,714	36,752
Duke Energy Progress | Affiliated Entity
Current Assets
Receivables (net of allowance for doubtful accounts)	30	25
Notes receivable from affiliated companies	37
Current Liabilities
Accounts payable	250	508
Notes payable to affiliated companies		238
Long-Term Debt (includes amounts related to VIEs)	150	150
Duke Energy Progress | VIEs
Current Assets
Regulatory assets (includes amounts related to VIEs)	39	39
Other (including amounts related to VIEs)	25	42
Other Noncurrent Assets
Other Noncurrent Assets: Regulatory assets	662	681
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	34	34
Long-Term Debt (includes amounts related to VIEs)	1,096	1,114
Duke Energy Florida
Current Assets
Cash and cash equivalents	37	45
Receivables (net of allowance for doubtful accounts)	129	148
Receivables of VIEs (net of allowance for doubtful accounts)	618	496
Inventory	653	573
Regulatory assets (includes amounts related to VIEs)	1,039	1,143
Other (including amounts related to VIEs)	100	108
Total current assets	2,581	2,515
Property, Plant and Equipment
Cost	27,094	25,940
Accumulated depreciation and amortization	(6,794)	(6,377)
Net property, plant and equipment	20,300	19,563
Other Noncurrent Assets
Other Noncurrent Assets: Regulatory assets	2,161	2,422
Nuclear decommissioning trust funds	405	424
Operating lease right-of-use assets, net	238	258
Other	409	372
Total other noncurrent assets	3,213	3,476
Total Assets	26,094	25,554
Current Liabilities
Accounts payable	572	880
Taxes accrued	261	53
Interest accrued	89	80
Current maturities of long-term debt (includes amounts related to VIEs)	1,201	328
Asset retirement obligations	1	1
Regulatory liabilities	188	244
Other	335	363
Total current liabilities	3,588	2,731
Long-Term Debt (includes amounts related to VIEs)	8,554	9,381
Other Noncurrent Liabilities
Deferred income taxes	2,785	2,789
Total noncurrent ARO	335	357
Regulatory liabilities	739	633
Operating lease liabilities	190	211
Accrued pension and other post-retirement benefit costs	105	111
Investment tax credits	233	234
Other	77	84
Total other noncurrent liabilities	4,464	4,419
Commitments and Contingencies
Equity
Member's equity	9,494	9,031
Accumulated other comprehensive (loss) income	(6)	(8)
Total member's equity	9,488	9,023
Total Liabilities and Equity	26,094	25,554
Duke Energy Florida | Affiliated Entity
Current Assets
Receivables (net of allowance for doubtful accounts)	5	2
Current Liabilities
Accounts payable	112	177
Notes payable to affiliated companies	829	605
Duke Energy Florida | VIEs
Current Assets
Regulatory assets (includes amounts related to VIEs)	56	55
Other (including amounts related to VIEs)	36	46
Other Noncurrent Assets
Other Noncurrent Assets: Regulatory assets	803	826
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	382	306
Long-Term Debt (includes amounts related to VIEs)	859	890
Duke Energy Ohio
Current Assets
Cash and cash equivalents	8	16
Receivables (net of allowance for doubtful accounts)	89	73
Inventory	178	144
Regulatory assets (includes amounts related to VIEs)	47	103
Other (including amounts related to VIEs)	44	86
Total current assets	706	669
Property, Plant and Equipment
Cost	12,762	12,497
Accumulated depreciation and amortization	(3,339)	(3,250)
Net property, plant and equipment	9,423	9,247
Other Noncurrent Assets
Goodwill	920	920
Other Noncurrent Assets: Regulatory assets	651	581
Operating lease right-of-use assets, net	17	18
Other	74	71
Total other noncurrent assets	1,662	1,590
Total Assets	11,791	11,506
Current Liabilities
Accounts payable	347	380
Taxes accrued	181	317
Interest accrued	40	29
Current maturities of long-term debt (includes amounts related to VIEs)	475	475
Asset retirement obligations	12	17
Regulatory liabilities	51	99
Other	66	74
Total current liabilities	1,341	1,960
Long-Term Debt (includes amounts related to VIEs)	3,491	2,745
Other Noncurrent Liabilities
Deferred income taxes	1,165	1,136
Total noncurrent ARO	140	137
Regulatory liabilities	487	534
Operating lease liabilities	17	17
Accrued pension and other post-retirement benefit costs	93	90
Other	95	96
Total other noncurrent liabilities	1,997	2,010
Commitments and Contingencies
Equity
Common stock	762	762
Additional paid-in capital	3,100	3,100
Retained earnings	1,075	904
Total Parent stockholders' equity	4,937	4,766
Total equity	4,937	4,766
Total Liabilities and Equity	$ 11,791	$ 11,506
Common stock, shares authorized (in shares)	120,000,000	120,000,000
Common stock, shares outstanding (in shares)	90,000,000	90,000,000
Duke Energy Ohio | Affiliated Entity
Current Assets
Receivables (net of allowance for doubtful accounts)	$ 180	$ 247
Notes receivable from affiliated companies	160
Current Liabilities
Accounts payable	60	72
Notes payable to affiliated companies	109	497
Long-Term Debt (includes amounts related to VIEs)	25	25
Duke Energy Indiana
Current Assets
Cash and cash equivalents	11	31
Receivables (net of allowance for doubtful accounts)	178	112
Inventory	593	489
Regulatory assets (includes amounts related to VIEs)	97	249
Other (including amounts related to VIEs)	90	197
Total current assets	1,133	1,376
Property, Plant and Equipment
Cost	18,514	18,121
Accumulated depreciation and amortization	(6,253)	(6,021)
Net property, plant and equipment	12,261	12,100
Other Noncurrent Assets
Other Noncurrent Assets: Regulatory assets	896	875
Operating lease right-of-use assets, net	47	49
Other	278	254
Total other noncurrent assets	1,221	1,178
Total Assets	14,615	14,654
Current Liabilities
Accounts payable	291	391
Taxes accrued	80	92
Interest accrued	56	48
Current maturities of long-term debt (includes amounts related to VIEs)	3	303
Asset retirement obligations	187	207
Regulatory liabilities	222	187
Other	179	161
Total current liabilities	1,324	2,030
Long-Term Debt (includes amounts related to VIEs)	4,350	3,854
Other Noncurrent Liabilities
Deferred income taxes	1,323	1,299
Total noncurrent ARO	737	744
Regulatory liabilities	1,523	1,454
Operating lease liabilities	45	47
Accrued pension and other post-retirement benefit costs	124	122
Investment tax credits	186	186
Other	26	65
Total other noncurrent liabilities	3,964	3,917
Commitments and Contingencies
Equity
Member's equity	4,826	4,702
Accumulated other comprehensive (loss) income	1	1
Total member's equity	4,827	4,703
Total Liabilities and Equity	14,615	14,654
Duke Energy Indiana | Affiliated Entity
Current Assets
Receivables (net of allowance for doubtful accounts)	164	298
Current Liabilities
Accounts payable	97	206
Notes payable to affiliated companies	209	435
Long-Term Debt (includes amounts related to VIEs)	150	150
Piedmont
Current Assets
Receivables (net of allowance for doubtful accounts)	117	436
Inventory	73	172
Regulatory assets (includes amounts related to VIEs)	121	119
Other (including amounts related to VIEs)	57	4
Total current assets	381	742
Property, Plant and Equipment
Cost	11,343	10,869
Accumulated depreciation and amortization	(2,189)	(2,081)
Facilities to be retired, net	4	9
Net property, plant and equipment	9,158	8,797
Other Noncurrent Assets
Goodwill	49	49
Other Noncurrent Assets: Regulatory assets	401	392
Operating lease right-of-use assets, net	3	4
Investments in equity method unconsolidated affiliates	78	79
Other	280	272
Total other noncurrent assets	811	796
Total Assets	10,350	10,335
Current Liabilities
Accounts payable	180	345
Taxes accrued	30	74
Interest accrued	41	40
Current maturities of long-term debt (includes amounts related to VIEs)	45	45
Regulatory liabilities	111	74
Other	66	81
Total current liabilities	621	1,224
Long-Term Debt (includes amounts related to VIEs)	3,667	3,318
Other Noncurrent Liabilities
Deferred income taxes	924	870
Total noncurrent ARO	27	26
Regulatory liabilities	1,006	1,024
Operating lease liabilities	11	13
Accrued pension and other post-retirement benefit costs	6	7
Other	180	180
Total other noncurrent liabilities	2,154	2,120
Commitments and Contingencies
Equity
Common stock	1,635	1,635
Retained earnings	2,272	2,037
Total Parent stockholders' equity	3,907	3,672
Noncontrolling interests	1	1
Total equity	3,908	3,673
Total Liabilities and Equity	$ 10,350	$ 10,335
Common stock, shares authorized (in shares)	100	100
Common stock, shares outstanding (in shares)	100	100
Piedmont | Affiliated Entity
Current Assets
Receivables (net of allowance for doubtful accounts)	$ 13	$ 11
Current Liabilities
Accounts payable	44	51
Notes payable to affiliated companies	$ 104	$ 514