Condensed Consolidated Balance Sheets - Piedmont - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current Assets
Receivables of VIEs (net of allowance for doubtful accounts)	$ 2,253	$ 3,019
Inventory	4,281	4,292
Regulatory assets	3,082	3,648
Other (includes amounts related to VIEs)	359	431
Total current assets	12,091	12,769
Property, Plant and Equipment
Cost	173,926	171,353
Accumulated depreciation and amortization	(57,035)	(56,038)
Net property, plant and equipment	116,891	115,315
Other Noncurrent Assets
Goodwill	19,303	19,303
Regulatory assets	13,636	13,618
Operating lease right-of-use assets, net	1,092	1,092
Investments in equity method unconsolidated affiliates	502	492
Other	4,072	3,964
Total other noncurrent assets	49,688	48,809
Total Assets	178,670	176,893
Current Liabilities
Accounts payable	3,364	4,228
Taxes accrued	708	816
Interest accrued	798	745
Current maturities of long-term debt	2,274	2,800
Regulatory liabilities	1,309	1,369
Other	2,084	2,319
Total current liabilities	15,546	17,283
Long-Term Debt (includes amounts related to VIEs)	74,979	72,452
Other Noncurrent Liabilities
Deferred income taxes	10,721	10,556
Asset retirement obligations	8,487	8,560
Regulatory liabilities	14,571	14,039
Operating lease liabilities	915	917
Accrued pension and other post-retirement benefit costs	473	485
Other	1,352	1,393
Total other noncurrent liabilities	37,507	36,971
Commitments and Contingencies
Equity
Common stock	1	1
Retained earnings	2,542	2,235
Total Duke Energy Corporation stockholders' equity	49,551	49,112
Noncontrolling interests	1,087	1,075
Total equity	50,638	50,187
Total Liabilities and Equity	178,670	176,893
Piedmont
Current Assets
Receivables of VIEs (net of allowance for doubtful accounts)	297	311
Inventory	65	112
Regulatory assets	131	161
Other (includes amounts related to VIEs)	9	7
Total current assets	514	601
Property, Plant and Equipment
Cost	12,157	11,908
Accumulated depreciation and amortization	(2,296)	(2,259)
Net property, plant and equipment	9,861	9,649
Other Noncurrent Assets
Goodwill	49	49
Regulatory assets	403	410
Operating lease right-of-use assets, net	5	4
Investments in equity method unconsolidated affiliates	78	78
Other	282	276
Total other noncurrent assets	817	817
Total Assets	11,192	11,067
Current Liabilities
Accounts payable	246	315
Taxes accrued	101	89
Interest accrued	48	39
Current maturities of long-term debt	40	40
Regulatory liabilities	88	98
Other	64	77
Total current liabilities	1,151	1,250
Long-Term Debt (includes amounts related to VIEs)	3,629	3,628
Other Noncurrent Liabilities
Deferred income taxes	930	933
Asset retirement obligations	26	26
Regulatory liabilities	973	988
Operating lease liabilities	10	10
Accrued pension and other post-retirement benefit costs	7	8
Other	168	172
Total other noncurrent liabilities	2,114	2,137
Commitments and Contingencies
Equity
Common stock	1,635	1,635
Retained earnings	2,662	2,416
Total Duke Energy Corporation stockholders' equity	4,297	4,051
Noncontrolling interests	1	1
Total equity	4,298	4,052
Total Liabilities and Equity	11,192	11,067
Piedmont | Affiliated Entity
Current Assets
Receivables of VIEs (net of allowance for doubtful accounts)	12	10
Current Liabilities
Accounts payable	56	54
Notes payable to affiliated companies	$ 508	$ 538