Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Current Assets
Cash and cash equivalents	$ 409	$ 341
Receivables (net of allowance for doubtful accounts)	1,309	1,085
Receivables of VIEs (net of allowance for doubtful accounts)	3,106	2,437
Inventory	3,584	3,111
Current assets held for sale	262	232
Regulatory assets (includes amounts related to VIEs)	3,485	2,150
Other (including amounts related to VIEs)	1,067	584
Total current assets	13,222	9,940
Property, Plant and Equipment
Cost	163,839	154,496
Accumulated depreciation and amortization	(52,100)	(49,104)
Facilities to be retired, net	9	144
Net property, plant and equipment	111,748	105,536
Other Noncurrent Assets
Goodwill	19,303	19,303
Regulatory assets (includes amounts related to VIEs)	14,645	12,487
Nuclear decommissioning trust funds	8,637	10,401
Operating lease right-of-use assets, net	1,042	1,136
Investments in equity method unconsolidated affiliates	455	457
Noncurrent assets held for sale	5,634	6,695
Other (including amounts related to VIEs)	3,400	3,632
Total other noncurrent assets	53,116	54,111
Total Assets	178,086	169,587
Current Liabilities
Accounts payable	4,754	3,531
Notes payable and commercial paper	3,952	3,304
Taxes accrued	722	731
Interest accrued	626	530
Current maturities of long-term debt (includes amounts related to VIEs)	4,154	3,387
Asset retirement obligations	773	647
Regulatory liabilities	1,466	1,211
Liabilities associated with assets held for sale	259	167
Other	2,167	2,423
Total current liabilities	18,873	15,931
Long-Term Debt (includes amounts related to VIEs)	67,061	60,448
Other Noncurrent Liabilities
Deferred income taxes	9,964	9,379
Asset retirement obligations	11,955	11,953
Regulatory liabilities	13,582	16,152
Operating lease liabilities	876	940
Accrued pension and other post-retirement benefit costs	832	855
Investment tax credits	849	833
Noncurrent liabilities associated with assets held for sale	739	612
Other (includes amounts related to VIEs)	1,502	1,348
Total other noncurrent liabilities	40,299	42,072
Commitments and Contingencies
Equity
Common stock	1	1
Additional paid-in capital	44,862	44,371
Retained earnings	2,637	3,265
Accumulated other comprehensive (loss) income	(140)	(303)
Total Parent stockholders' equity	49,322	49,296
Noncontrolling interests	2,531	1,840
Total equity	51,853	51,136
Total Liabilities and Equity	$ 178,086	$ 169,587
Common stock, shares authorized (in shares)	2,000,000,000	2,000,000,000
VIEs
Current Assets
Regulatory assets (includes amounts related to VIEs)	$ 106	$ 105
Other (including amounts related to VIEs)	116	41
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	1,715	1,824
Other (including amounts related to VIEs)	52	30
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	350	76
Long-Term Debt (includes amounts related to VIEs)	3,108	3,379
Series A Preferred Stock
Equity
Preferred stock	973	973
Series B Preferred Stock
Equity
Preferred stock	989	989
Duke Energy Carolinas
Current Assets
Cash and cash equivalents	44	7
Receivables (net of allowance for doubtful accounts)	338	300
Receivables of VIEs (net of allowance for doubtful accounts)	928	844
Receivables from affiliated companies	390	190
Inventory	1,164	1,026
Regulatory assets (includes amounts related to VIEs)	1,095	544
Other (including amounts related to VIEs)	216	95
Total current assets	4,175	3,006
Property, Plant and Equipment
Cost	54,650	51,874
Accumulated depreciation and amortization	(18,669)	(17,854)
Facilities to be retired, net	0	102
Net property, plant and equipment	35,981	34,122
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	4,293	2,935
Nuclear decommissioning trust funds	4,783	5,759
Operating lease right-of-use assets, net	78	92
Other (including amounts related to VIEs)	1,036	1,248
Total other noncurrent assets	10,190	10,034
Total Assets	50,346	47,162
Current Liabilities
Accounts payable	1,472	988
Accounts payable to affiliated companies	209	266
Notes payable to affiliated companies	1,233	226
Taxes accrued	228	274
Interest accrued	120	125
Current maturities of long-term debt (includes amounts related to VIEs)	1,018	362
Asset retirement obligations	261	249
Regulatory liabilities	530	487
Other	580	546
Total current liabilities	5,651	3,523
Long-Term Debt (includes amounts related to VIEs)	12,948	12,595
Long-Term Debt Payable to Affiliated Companies	300	318
Other Noncurrent Liabilities
Deferred income taxes	4,153	3,634
Asset retirement obligations	5,121	5,052
Regulatory liabilities	5,783	7,198
Operating lease liabilities	83	78
Accrued pension and other post-retirement benefit costs	38	50
Investment tax credits	300	287
Other (includes amounts related to VIEs)	527	536
Total other noncurrent liabilities	16,005	16,835
Commitments and Contingencies
Equity
Member's equity	15,448	13,897
Accumulated other comprehensive (loss) income	(6)	(6)
Total member's equity	15,442	13,891
Total Liabilities and Equity	50,346	47,162
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
Regulatory assets (includes amounts related to VIEs)	208	220
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	10	5
Long-Term Debt (includes amounts related to VIEs)	689	703
Progress Energy
Current Assets
Cash and cash equivalents	108	70
Receivables (net of allowance for doubtful accounts)	318	247
Receivables of VIEs (net of allowance for doubtful accounts)	1,289	1,006
Receivables from affiliated companies	22	121
Inventory	1,579	1,398
Regulatory assets (includes amounts related to VIEs)	1,833	1,030
Other (including amounts related to VIEs)	342	125
Total current assets	5,491	3,997
Property, Plant and Equipment
Cost	64,822	60,894
Accumulated depreciation and amortization	(20,584)	(19,214)
Facilities to be retired, net		26
Net property, plant and equipment	44,238	41,706
Other Noncurrent Assets
Goodwill	3,655	3,655
Regulatory assets (includes amounts related to VIEs)	7,146	5,909
Nuclear decommissioning trust funds	3,855	4,642
Operating lease right-of-use assets, net	628	691
Other (including amounts related to VIEs)	1,066	1,242
Total other noncurrent assets	16,350	16,139
Total Assets	66,079	61,842
Current Liabilities
Accounts payable	1,481	1,099
Accounts payable to affiliated companies	712	506
Notes payable to affiliated companies	843	2,809
Taxes accrued	135	128
Interest accrued	206	192
Current maturities of long-term debt (includes amounts related to VIEs)	697	1,082
Asset retirement obligations	289	275
Regulatory liabilities	576	478
Other	782	868
Total current liabilities	5,721	7,437
Long-Term Debt (includes amounts related to VIEs)	21,592	19,591
Long-Term Debt Payable to Affiliated Companies	150	150
Other Noncurrent Liabilities
Deferred income taxes	5,147	4,564
Asset retirement obligations	5,892	5,837
Regulatory liabilities	4,753	5,566
Operating lease liabilities	546	606
Accrued pension and other post-retirement benefit costs	292	417
Investment tax credits	358	364
Other (includes amounts related to VIEs)	222	162
Total other noncurrent liabilities	17,210	17,516
Commitments and Contingencies
Equity
Additional paid-in capital	11,832	9,149
Retained earnings	9,585	8,007
Accumulated other comprehensive (loss) income	(11)	(11)
Total Parent stockholders' equity	21,406	17,145
Noncontrolling interests		3
Total equity	21,406	17,148
Total Liabilities and Equity	$ 66,079	$ 61,842
Common stock, shares authorized (in shares)	100	100
Progress Energy | VIEs
Current Assets
Regulatory assets (includes amounts related to VIEs)	$ 94	$ 93
Other (including amounts related to VIEs)	88	39
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	1,507	1,603
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	340	71
Long-Term Debt (includes amounts related to VIEs)	2,003	2,293
Duke Energy Progress
Current Assets
Cash and cash equivalents	49	35
Receivables (net of allowance for doubtful accounts)	167	127
Receivables of VIEs (net of allowance for doubtful accounts)	793	574
Receivables from affiliated companies	25	65
Inventory	1,006	921
Regulatory assets (includes amounts related to VIEs)	690	533
Other (including amounts related to VIEs)	174	83
Total current assets	2,904	2,338
Property, Plant and Equipment
Cost	38,875	37,018
Accumulated depreciation and amortization	(14,201)	(13,387)
Facilities to be retired, net		26
Net property, plant and equipment	24,674	23,657
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	4,724	4,118
Nuclear decommissioning trust funds	3,430	4,089
Operating lease right-of-use assets, net	370	389
Other (including amounts related to VIEs)	650	792
Total other noncurrent assets	9,174	9,388
Total Assets	36,752	35,383
Current Liabilities
Accounts payable	601	476
Accounts payable to affiliated companies	508	310
Notes payable to affiliated companies	238	172
Taxes accrued	77	163
Interest accrued	101	96
Current maturities of long-term debt (includes amounts related to VIEs)	369	556
Asset retirement obligations	288	274
Regulatory liabilities	332	381
Other	384	448
Total current liabilities	2,898	2,876
Long-Term Debt (includes amounts related to VIEs)	10,568	9,543
Long-Term Debt Payable to Affiliated Companies	150	150
Other Noncurrent Liabilities
Deferred income taxes	2,477	2,208
Asset retirement obligations	5,535	5,401
Regulatory liabilities	4,120	4,868
Operating lease liabilities	335	350
Accrued pension and other post-retirement benefit costs	160	221
Investment tax credits	124	128
Other (includes amounts related to VIEs)	76	87
Total other noncurrent liabilities	12,827	13,263
Commitments and Contingencies
Equity
Total member's equity	10,309	9,551
Total Liabilities and Equity	36,752	35,383
Duke Energy Progress | VIEs
Current Assets
Regulatory assets (includes amounts related to VIEs)	39	39
Other (including amounts related to VIEs)	42
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	681	720
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	34	15
Long-Term Debt (includes amounts related to VIEs)	1,114	1,097
Duke Energy Florida
Current Assets
Cash and cash equivalents	45	23
Receivables (net of allowance for doubtful accounts)	148	117
Receivables of VIEs (net of allowance for doubtful accounts)	496	432
Receivables from affiliated companies	2	16
Inventory	573	477
Regulatory assets (includes amounts related to VIEs)	1,143	497
Other (including amounts related to VIEs)	108	80
Total current assets	2,515	1,642
Property, Plant and Equipment
Cost	25,940	23,865
Accumulated depreciation and amortization	(6,377)	(5,819)
Net property, plant and equipment	19,563	18,046
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	2,422	1,791
Nuclear decommissioning trust funds	424	553
Operating lease right-of-use assets, net	258	302
Other (including amounts related to VIEs)	372	399
Total other noncurrent assets	3,476	3,045
Total Assets	25,554	22,733
Current Liabilities
Accounts payable	880	623
Accounts payable to affiliated companies	177	209
Notes payable to affiliated companies	605	199
Taxes accrued	53	51
Interest accrued	80	68
Current maturities of long-term debt (includes amounts related to VIEs)	328	76
Asset retirement obligations	1	1
Regulatory liabilities	244	98
Other	363	408
Total current liabilities	2,731	1,733
Long-Term Debt (includes amounts related to VIEs)	9,381	8,406
Other Noncurrent Liabilities
Deferred income taxes	2,789	2,434
Asset retirement obligations	357	436
Regulatory liabilities	633	698
Operating lease liabilities	211	256
Accrued pension and other post-retirement benefit costs	111	166
Investment tax credits	234	236
Other (includes amounts related to VIEs)	84	73
Total other noncurrent liabilities	4,419	4,299
Commitments and Contingencies
Equity
Member's equity	9,031	8,298
Accumulated other comprehensive (loss) income	(8)	(3)
Total member's equity	9,023	8,295
Total Liabilities and Equity	25,554	22,733
Duke Energy Florida | VIEs
Current Assets
Regulatory assets (includes amounts related to VIEs)	55	54
Other (including amounts related to VIEs)	46	39
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	826	883
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	306	56
Long-Term Debt (includes amounts related to VIEs)	890	1,196
Duke Energy Ohio
Current Assets
Cash and cash equivalents	16	13
Receivables (net of allowance for doubtful accounts)	73	96
Receivables from affiliated companies	247	122
Notes receivable from affiliated companies		15
Inventory	144	116
Regulatory assets (includes amounts related to VIEs)	103	72
Other (including amounts related to VIEs)	86	57
Total current assets	669	491
Property, Plant and Equipment
Cost	12,497	11,725
Accumulated depreciation and amortization	(3,250)	(3,106)
Facilities to be retired, net		6
Net property, plant and equipment	9,247	8,625
Other Noncurrent Assets
Goodwill	920	920
Regulatory assets (includes amounts related to VIEs)	581	635
Operating lease right-of-use assets, net	18	19
Other (including amounts related to VIEs)	71	84
Total other noncurrent assets	1,590	1,658
Total Assets	11,506	10,774
Current Liabilities
Accounts payable	380	348
Accounts payable to affiliated companies	72	64
Notes payable to affiliated companies	497	103
Taxes accrued	317	275
Interest accrued	29	30
Current maturities of long-term debt (includes amounts related to VIEs)	475
Asset retirement obligations	17	13
Regulatory liabilities	99	62
Other	74	82
Total current liabilities	1,960	977
Long-Term Debt (includes amounts related to VIEs)	2,745	3,168
Long-Term Debt Payable to Affiliated Companies	25	25
Other Noncurrent Liabilities
Deferred income taxes	1,136	1,050
Asset retirement obligations	137	123
Regulatory liabilities	534	739
Operating lease liabilities	17	18
Accrued pension and other post-retirement benefit costs	90	109
Other (includes amounts related to VIEs)	96	101
Total other noncurrent liabilities	2,010	2,140
Commitments and Contingencies
Equity
Common stock	762	762
Additional paid-in capital	3,100	3,100
Retained earnings	904	602
Total Parent stockholders' equity	4,766	4,464
Total Liabilities and Equity	$ 11,506	$ 10,774
Common stock, shares authorized (in shares)	120,000,000	120,000,000
Duke Energy Indiana
Current Assets
Cash and cash equivalents	$ 31	$ 6
Receivables (net of allowance for doubtful accounts)	112	100
Receivables from affiliated companies	298	98
Notes receivable from affiliated companies		134
Inventory	489	418
Regulatory assets (includes amounts related to VIEs)	249	277
Other (including amounts related to VIEs)	197	68
Total current assets	1,376	1,101
Property, Plant and Equipment
Cost	18,121	17,343
Accumulated depreciation and amortization	(6,021)	(5,583)
Net property, plant and equipment	12,100	11,760
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	875	1,278
Operating lease right-of-use assets, net	49	53
Other (including amounts related to VIEs)	254	296
Total other noncurrent assets	1,178	1,627
Total Assets	14,654	14,488
Current Liabilities
Accounts payable	391	282
Accounts payable to affiliated companies	206	221
Notes payable to affiliated companies	435
Taxes accrued	92	73
Interest accrued	48	49
Current maturities of long-term debt (includes amounts related to VIEs)	303	84
Asset retirement obligations	207	110
Regulatory liabilities	187	127
Other	161	105
Total current liabilities	2,030	1,051
Long-Term Debt (includes amounts related to VIEs)	3,854	4,089
Long-Term Debt Payable to Affiliated Companies	150	150
Other Noncurrent Liabilities
Deferred income taxes	1,299	1,303
Asset retirement obligations	744	877
Regulatory liabilities	1,454	1,565
Operating lease liabilities	47	50
Accrued pension and other post-retirement benefit costs	122	167
Investment tax credits	186	177
Other (includes amounts related to VIEs)	65	44
Total other noncurrent liabilities	3,917	4,183
Commitments and Contingencies
Equity
Member's equity	4,702	5,015
Accumulated other comprehensive (loss) income	1
Total member's equity	4,703	5,015
Total Liabilities and Equity	14,654	14,488
Piedmont
Current Assets
Receivables (net of allowance for doubtful accounts)	436	318
Receivables from affiliated companies	11	11
Inventory	172	109
Regulatory assets (includes amounts related to VIEs)	119	141
Other (including amounts related to VIEs)	4	9
Total current assets	742	588
Property, Plant and Equipment
Cost	10,869	9,918
Accumulated depreciation and amortization	(2,081)	(1,899)
Facilities to be retired, net	9	11
Net property, plant and equipment	8,797	8,030
Other Noncurrent Assets
Goodwill	49	49
Regulatory assets (includes amounts related to VIEs)	392	316
Operating lease right-of-use assets, net	4	16
Investments in equity method unconsolidated affiliates	79	95
Other (including amounts related to VIEs)	272	288
Total other noncurrent assets	796	764
Total Assets	10,335	9,382
Current Liabilities
Accounts payable	345	196
Accounts payable to affiliated companies	51	40
Notes payable to affiliated companies	514	518
Taxes accrued	74	63
Interest accrued	40	37
Current maturities of long-term debt (includes amounts related to VIEs)	45	0
Regulatory liabilities	74	56
Other	81	81
Total current liabilities	1,224	991
Long-Term Debt (includes amounts related to VIEs)	3,318	2,968
Other Noncurrent Liabilities
Deferred income taxes	870	815
Asset retirement obligations	26	22
Regulatory liabilities	1,024	1,058
Operating lease liabilities	13	14
Accrued pension and other post-retirement benefit costs	7	7
Other (includes amounts related to VIEs)	180	158
Total other noncurrent liabilities	2,120	2,074
Commitments and Contingencies
Equity
Common stock	1,635	1,635
Retained earnings	2,037	1,714
Total Parent stockholders' equity	3,672	3,349
Noncontrolling interests	1
Total equity	3,673	3,349
Total Liabilities and Equity	$ 10,335	$ 9,382
Common stock, shares authorized (in shares)	100	100