Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Current Assets
Cash and cash equivalents	$ 853	$ 343
Receivables (net of allowance for doubtful accounts)	1,148	1,173
Receivables of VIEs (net of allowance for doubtful accounts)	2,590	2,437
Inventory	3,171	3,199
Regulatory assets (includes amounts related to VIEs)	2,334	2,150
Other (includes amounts related to VIEs)	946	638
Total current assets	11,042	9,940
Property, Plant and Equipment
Cost	163,700	161,819
Accumulated depreciation and amortization	(51,517)	(50,555)
Facilities to be retired, net	133	144
Net property, plant and equipment	112,316	111,408
Other Noncurrent Assets
Goodwill	19,303	19,303
Regulatory assets (includes amounts related to VIEs)	12,506	12,487
Nuclear decommissioning trust funds	9,827	10,401
Operating lease right-of-use assets, net	1,255	1,266
Investments in equity method unconsolidated affiliates	976	970
Other (includes amounts related to VIEs)	3,995	3,812
Total other noncurrent assets	47,862	48,239
Total Assets	171,220	169,587
Current Liabilities
Accounts payable	3,175	3,629
Notes payable and commercial paper	3,262	3,304
Taxes accrued	642	749
Interest accrued	575	533
Current maturities of long-term debt (includes amounts related to VIEs)	3,884	3,387
Asset retirement obligations	648	647
Regulatory liabilities	1,238	1,211
Other	2,001	2,471
Total current liabilities	15,425	15,931
Long-Term Debt (includes amounts related to VIEs)	62,196	60,448
Other Noncurrent Liabilities
Deferred income taxes	9,673	9,379
Asset retirement obligations	12,112	12,129
Regulatory liabilities	16,037	16,152
Operating lease liabilities	1,068	1,074
Accrued pension and other post-retirement benefit costs	832	855
Investment tax credits	831	833
Other (includes amounts related to VIEs)	1,794	1,650
Total other noncurrent liabilities	42,347	42,072
Commitments and Contingencies
Equity
Common stock	1	1
Additional paid-in capital	44,364	44,371
Retained earnings	3,323	3,265
Accumulated other comprehensive loss	(204)	(303)
Total Duke Energy Corporation stockholders' equity	49,446	49,296
Noncontrolling interests	1,806	1,840
Total equity	51,252	51,136
Total Liabilities and Equity	171,220	169,587
Variable Interest Entity
Current Assets
Regulatory assets (includes amounts related to VIEs)	105	105
Other (includes amounts related to VIEs)	249	256
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	1,800	1,823
Other (includes amounts related to VIEs)	111	92
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	395	243
Long-Term Debt (includes amounts related to VIEs)	4,687	4,854
Other Noncurrent Liabilities
Other (includes amounts related to VIEs)	360	319
Duke Energy Carolinas
Current Assets
Cash and cash equivalents	4	7
Receivables (net of allowance for doubtful accounts)	858	844
Receivables of VIEs (net of allowance for doubtful accounts)	234	300
Receivables from affiliated companies	134	190
Notes receivable from affiliated companies	492
Inventory	1,040	1,026
Regulatory assets (includes amounts related to VIEs)	652	544
Other (includes amounts related to VIEs)	246	95
Total current assets	3,660	3,006
Property, Plant and Equipment
Cost	52,423	51,874
Accumulated depreciation and amortization	(18,058)	(17,854)
Facilities to be retired, net	98	102
Net property, plant and equipment	34,463	34,122
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	3,085	2,935
Nuclear decommissioning trust funds	5,441	5,759
Operating lease right-of-use assets, net	87	92
Other (includes amounts related to VIEs)	1,297	1,248
Total other noncurrent assets	9,910	10,034
Total Assets	48,033	47,162
Current Liabilities
Accounts payable	752	988
Accounts payable to affiliated companies	267	266
Notes payable to affiliated companies		226
Taxes accrued	124	274
Interest accrued	140	125
Current maturities of long-term debt (includes amounts related to VIEs)	1,367	362
Asset retirement obligations	251	249
Regulatory liabilities	465	487
Other	442	546
Total current liabilities	3,808	3,523
Long-Term Debt (includes amounts related to VIEs)	12,803	12,595
Long-Term Debt Payable to Affiliated Companies	300	318
Other Noncurrent Liabilities
Deferred income taxes	3,769	3,634
Asset retirement obligations	5,067	5,052
Regulatory liabilities	7,151	7,198
Operating lease liabilities	74	78
Accrued pension and other post-retirement benefit costs	48	50
Investment tax credits	286	287
Other (includes amounts related to VIEs)	545	536
Total other noncurrent liabilities	16,940	16,835
Commitments and Contingencies
Equity
Member's equity	14,188	13,897
Accumulated other comprehensive loss	(6)	(6)
Member's Equity	14,182	13,891
Total Liabilities and Equity	48,033	47,162
Duke Energy Carolinas \| Variable Interest Entity
Current Assets
Regulatory assets (includes amounts related to VIEs)	12	12
Other (includes amounts related to VIEs)	5	0
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	217	220
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	10	5
Long-Term Debt (includes amounts related to VIEs)	722	703
Progress Energy
Current Assets
Cash and cash equivalents	63	70
Receivables (net of allowance for doubtful accounts)	1,166	1,006
Receivables of VIEs (net of allowance for doubtful accounts)	286	247
Receivables from affiliated companies	37	121
Notes receivable from affiliated companies	237
Inventory	1,403	1,398
Regulatory assets (includes amounts related to VIEs)	1,101	1,030
Other (includes amounts related to VIEs)	319	125
Total current assets	4,612	3,997
Property, Plant and Equipment
Cost	61,629	60,894
Accumulated depreciation and amortization	(19,702)	(19,214)
Facilities to be retired, net	24	26
Net property, plant and equipment	41,951	41,706
Other Noncurrent Assets
Goodwill	3,655	3,655
Regulatory assets (includes amounts related to VIEs)	6,024	5,909
Nuclear decommissioning trust funds	4,385	4,642
Operating lease right-of-use assets, net	701	691
Other (includes amounts related to VIEs)	1,336	1,242
Total other noncurrent assets	16,101	16,139
Total Assets	62,664	61,842
Current Liabilities
Accounts payable	982	1,099
Accounts payable to affiliated companies	364	506
Notes payable to affiliated companies	377	2,809
Taxes accrued	157	128
Interest accrued	195	192
Current maturities of long-term debt (includes amounts related to VIEs)	1,095	1,082
Asset retirement obligations	268	275
Regulatory liabilities	469	478
Other	760	868
Total current liabilities	4,667	7,437
Long-Term Debt (includes amounts related to VIEs)	20,412	19,591
Long-Term Debt Payable to Affiliated Companies	150	150
Other Noncurrent Liabilities
Deferred income taxes	4,702	4,564
Asset retirement obligations	5,821	5,837
Regulatory liabilities	5,671	5,566
Operating lease liabilities	619	606
Accrued pension and other post-retirement benefit costs	409	417
Other (includes amounts related to VIEs)	531	526
Total other noncurrent liabilities	17,753	17,516
Commitments and Contingencies
Equity
Additional paid-in capital	9,149	9,149
Retained earnings	10,543	8,007
Accumulated other comprehensive loss	(12)	(11)
Total Duke Energy Corporation stockholders' equity	19,680	17,145
Noncontrolling interests	2	3
Total equity	19,682	17,148
Total Liabilities and Equity	62,664	61,842
Progress Energy \| Variable Interest Entity
Current Assets
Regulatory assets (includes amounts related to VIEs)	93
Other (includes amounts related to VIEs)	27	39
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	1,583	1,603
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	88	71
Long-Term Debt (includes amounts related to VIEs)	2,246	2,293
Duke Energy Progress
Current Assets
Cash and cash equivalents	42	35
Receivables (net of allowance for doubtful accounts)	658	574
Receivables of VIEs (net of allowance for doubtful accounts)	188	127
Receivables from affiliated companies	20	65
Notes receivable from affiliated companies	328
Inventory	940	921
Regulatory assets (includes amounts related to VIEs)	595	533
Other (includes amounts related to VIEs)	200	83
Total current assets	2,971	2,338
Property, Plant and Equipment
Cost	37,361	37,018
Accumulated depreciation and amortization	(13,691)	(13,387)
Facilities to be retired, net	24	26
Net property, plant and equipment	23,694	23,657
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	4,124	4,118
Nuclear decommissioning trust funds	3,872	4,089
Operating lease right-of-use assets, net	410	389
Other (includes amounts related to VIEs)	867	792
Total other noncurrent assets	9,273	9,388
Total Assets	35,938	35,383
Current Liabilities
Accounts payable	450	476
Accounts payable to affiliated companies	260	310
Notes payable to affiliated companies		172
Taxes accrued	77	163
Interest accrued	76	96
Current maturities of long-term debt (includes amounts related to VIEs)	568	556
Asset retirement obligations	268	274
Regulatory liabilities	378	381
Other	400	448
Total current liabilities	2,477	2,876
Long-Term Debt (includes amounts related to VIEs)	10,396	9,543
Long-Term Debt Payable to Affiliated Companies	150	150
Other Noncurrent Liabilities
Deferred income taxes	2,275	2,208
Asset retirement obligations	5,411	5,401
Regulatory liabilities	4,898	4,868
Operating lease liabilities	372	350
Accrued pension and other post-retirement benefit costs	218	221
Investment tax credits	128	128
Other (includes amounts related to VIEs)	96	87
Total other noncurrent liabilities	13,398	13,263
Commitments and Contingencies
Equity
Member's Equity	9,517	9,551
Total Liabilities and Equity	35,938	35,383
Duke Energy Progress \| Variable Interest Entity
Current Assets
Regulatory assets (includes amounts related to VIEs)	39	39
Other (includes amounts related to VIEs)	14
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	711	720
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	32	15
Long-Term Debt (includes amounts related to VIEs)	1,080	1,097
Duke Energy Florida
Current Assets
Cash and cash equivalents	13	23
Receivables (net of allowance for doubtful accounts)	508	432
Receivables of VIEs (net of allowance for doubtful accounts)	97	117
Receivables from affiliated companies	16	16
Inventory	463	477
Regulatory assets (includes amounts related to VIEs)	505	497
Other (includes amounts related to VIEs)	79	80
Total current assets	1,681	1,642
Property, Plant and Equipment
Cost	24,257	23,865
Accumulated depreciation and amortization	(6,003)	(5,819)
Net property, plant and equipment	18,254	18,046
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	1,899	1,791
Nuclear decommissioning trust funds	514	553
Operating lease right-of-use assets, net	291	302
Other (includes amounts related to VIEs)	418	399
Total other noncurrent assets	3,122	3,045
Total Assets	23,057	22,733
Current Liabilities
Accounts payable	532	623
Accounts payable to affiliated companies	120	209
Notes payable to affiliated companies	468	199
Taxes accrued	96	51
Interest accrued	84	68
Current maturities of long-term debt (includes amounts related to VIEs)	77	76
Asset retirement obligations	1	1
Regulatory liabilities	91	98
Other	349	408
Total current liabilities	1,818	1,733
Long-Term Debt (includes amounts related to VIEs)	8,374	8,406
Other Noncurrent Liabilities
Deferred income taxes	2,503	2,434
Asset retirement obligations	411	436
Regulatory liabilities	772	698
Operating lease liabilities	247	256
Accrued pension and other post-retirement benefit costs	161	166
Other (includes amounts related to VIEs)	306	309
Total other noncurrent liabilities	4,400	4,299
Commitments and Contingencies
Equity
Member's equity	8,469	8,298
Accumulated other comprehensive loss	(4)	(3)
Member's Equity	8,465	8,295
Total Liabilities and Equity	23,057	22,733
Duke Energy Florida \| Variable Interest Entity
Current Assets
Regulatory assets (includes amounts related to VIEs)	54	54
Other (includes amounts related to VIEs)	13	39
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	872	883
Current Liabilities
Current maturities of long-term debt (includes amounts related to VIEs)	56	56
Long-Term Debt (includes amounts related to VIEs)	1,166	1,196
Duke Energy Ohio
Current Assets
Cash and cash equivalents	15	13
Receivables of VIEs (net of allowance for doubtful accounts)	101	96
Receivables from affiliated companies	93	122
Notes receivable from affiliated companies		15
Inventory	114	116
Regulatory assets (includes amounts related to VIEs)	60	72
Other (includes amounts related to VIEs)	23	57
Total current assets	406	491
Property, Plant and Equipment
Cost	11,818	11,725
Accumulated depreciation and amortization	(3,102)	(3,106)
Facilities to be retired, net		6
Net property, plant and equipment	8,716	8,625
Other Noncurrent Assets
Goodwill	920	920
Regulatory assets (includes amounts related to VIEs)	584	635
Operating lease right-of-use assets, net	18	19
Other (includes amounts related to VIEs)	87	84
Total other noncurrent assets	1,609	1,658
Total Assets	10,731	10,774
Current Liabilities
Accounts payable	379	348
Accounts payable to affiliated companies	68	64
Notes payable to affiliated companies	123	103
Taxes accrued	219	275
Interest accrued	32	30
Asset retirement obligations	13	13
Regulatory liabilities	67	62
Other	73	82
Total current liabilities	974	977
Long-Term Debt (includes amounts related to VIEs)	3,168	3,168
Long-Term Debt Payable to Affiliated Companies	25	25
Other Noncurrent Liabilities
Deferred income taxes	1,078	1,050
Asset retirement obligations	124	123
Regulatory liabilities	593	739
Operating lease liabilities	18	18
Accrued pension and other post-retirement benefit costs	109	109
Other (includes amounts related to VIEs)	100	101
Total other noncurrent liabilities	2,022	2,140
Commitments and Contingencies
Equity
Common stock	762	762
Additional paid-in capital	3,100	3,100
Retained earnings	680	602
Total Duke Energy Corporation stockholders' equity	4,542	4,464
Total Liabilities and Equity	10,731	10,774
Duke Energy Indiana
Current Assets
Cash and cash equivalents	19	6
Receivables of VIEs (net of allowance for doubtful accounts)	83	100
Receivables from affiliated companies	69	98
Notes receivable from affiliated companies	20	134
Inventory	430	418
Regulatory assets (includes amounts related to VIEs)	301	277
Other (includes amounts related to VIEs)	72	68
Total current assets	994	1,101
Property, Plant and Equipment
Cost	17,494	17,343
Accumulated depreciation and amortization	(5,693)	(5,583)
Net property, plant and equipment	11,801	11,760
Other Noncurrent Assets
Regulatory assets (includes amounts related to VIEs)	1,077	1,278
Operating lease right-of-use assets, net	52	53
Other (includes amounts related to VIEs)	295	296
Total other noncurrent assets	1,424	1,627
Total Assets	14,219	14,488
Current Liabilities
Accounts payable	268	282
Accounts payable to affiliated companies	187	221
Taxes accrued	131	73
Interest accrued	56	49
Current maturities of long-term debt (includes amounts related to VIEs)	31	84
Asset retirement obligations	115	110
Regulatory liabilities	140	127
Other	108	105
Total current liabilities	1,036	1,051
Long-Term Debt (includes amounts related to VIEs)	4,089	4,089
Long-Term Debt Payable to Affiliated Companies	150	150
Other Noncurrent Liabilities
Deferred income taxes	1,234	1,303
Asset retirement obligations	861	877
Regulatory liabilities	1,557	1,565
Operating lease liabilities	49	50
Accrued pension and other post-retirement benefit costs	168	167
Investment tax credits	177	177
Other (includes amounts related to VIEs)	74	44
Total other noncurrent liabilities	4,120	4,183
Commitments and Contingencies
Equity
Member's Equity	4,824	5,015
Total Liabilities and Equity	14,219	14,488
Piedmont
Current Assets
Receivables of VIEs (net of allowance for doubtful accounts)	303	318
Receivables from affiliated companies	13	11
Inventory	51	109
Regulatory assets (includes amounts related to VIEs)	133	141
Other (includes amounts related to VIEs)	16	9
Total current assets	516	588
Property, Plant and Equipment
Cost	10,110	9,918
Accumulated depreciation and amortization	(1,952)	(1,899)
Facilities to be retired, net	10	11
Net property, plant and equipment	8,168	8,030
Other Noncurrent Assets
Goodwill	49	49
Regulatory assets (includes amounts related to VIEs)	349	316
Operating lease right-of-use assets, net	15	16
Investments in equity method unconsolidated affiliates	97	95
Other (includes amounts related to VIEs)	307	288
Total other noncurrent assets	817	764
Total Assets	9,501	9,382
Current Liabilities
Accounts payable	170	196
Accounts payable to affiliated companies	52	40
Notes payable to affiliated companies	360	518
Taxes accrued	79	63
Interest accrued	35	37
Regulatory liabilities	98	56
Other	73	81
Total current liabilities	867	991
Long-Term Debt (includes amounts related to VIEs)	2,969	2,968
Other Noncurrent Liabilities
Deferred income taxes	831	815
Asset retirement obligations	22	22
Regulatory liabilities	1,041	1,058
Operating lease liabilities	13	14
Accrued pension and other post-retirement benefit costs	7	7
Other (includes amounts related to VIEs)	188	158
Total other noncurrent liabilities	2,102	2,074
Commitments and Contingencies
Equity
Common stock	1,635	1,635
Retained earnings	1,928	1,714
Total Duke Energy Corporation stockholders' equity	3,563	3,349
Total Liabilities and Equity	9,501	9,382
Preferred stock, Series A
Equity
Preferred stock	973	973
Preferred stock, Series B
Equity
Preferred stock	$ 989	$ 989

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