Condensed Consolidated Balance Sheets - Piedmont - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Current Assets
Receivables of VIEs (net of allowance for doubtful accounts)	$ 1,112	$ 1,309
Inventory (includes $462 at 2023 related to VIEs)	4,292	3,584
Regulatory assets	3,648	3,485
Other (includes amounts related to VIEs)	431	973
Total current assets	12,769	13,222
Property, Plant and Equipment
Cost	171,351	163,839
Accumulated depreciation and amortization	(56,038)	(52,100)
Facilities to be retired, net	2	9
Net property, plant and equipment	115,315	111,748
Other Noncurrent Assets
Goodwill	19,303	19,303
Other Noncurrent Assets: Regulatory assets	13,618	14,645
Operating lease right-of-use assets, net	1,092	1,042
Investments in equity method unconsolidated affiliates	492	455
Other (including amounts related to VIEs)	3,964	3,400
Total other noncurrent assets	48,809	53,116
Total Assets	176,893	178,086
Current Liabilities
Accounts payable (includes $188 at 2023 related to VIEs)	4,228	4,754
Taxes accrued	816	722
Interest accrued	745	626
Current maturities of long-term debt	2,800	3,878
Regulatory liabilities	1,369	1,466
Other	2,319	2,167
Total current liabilities	17,283	18,873
Long-Term Debt (includes amounts related to VIEs)	72,452	65,873
Other Noncurrent Liabilities
Deferred income taxes	10,556	9,964
Total noncurrent asset retirement obligation	8,560	11,955
Total noncurrent regulatory liabilities	14,039	13,582
Operating lease liabilities	917	876
Accrued pension and other post-retirement benefit costs	485	832
Other noncurrent liabilities	1,393	1,502
Total other noncurrent liabilities	36,971	41,487
Commitments and Contingencies
Equity
Common stock	1	1
Retained earnings	2,235	2,637
Total Duke Energy Corporation stockholders' equity	49,112	49,322
Noncontrolling interests	1,075	2,531
Total equity	50,187	51,853
Total Liabilities and Equity	176,893	178,086
Piedmont
Current Assets
Receivables of VIEs (net of allowance for doubtful accounts)	311	436
Inventory (includes $462 at 2023 related to VIEs)	112	172
Regulatory assets	161	119
Other (includes amounts related to VIEs)	7	4
Total current assets	601	742
Property, Plant and Equipment
Cost	11,906	10,869
Accumulated depreciation and amortization	(2,259)	(2,081)
Facilities to be retired, net	2	9
Net property, plant and equipment	9,649	8,797
Other Noncurrent Assets
Goodwill	49	49
Other Noncurrent Assets: Regulatory assets	410	392
Operating lease right-of-use assets, net	4	4
Investments in equity method unconsolidated affiliates	78	79
Other (including amounts related to VIEs)	276	272
Total other noncurrent assets	817	796
Total Assets	11,067	10,335
Current Liabilities
Accounts payable (includes $188 at 2023 related to VIEs)	315	345
Taxes accrued	89	74
Interest accrued	39	40
Current maturities of long-term debt	40	45
Regulatory liabilities	98	74
Other	77	81
Total current liabilities	1,250	1,224
Long-Term Debt (includes amounts related to VIEs)	3,628	3,318
Other Noncurrent Liabilities
Deferred income taxes	933	870
Total noncurrent asset retirement obligation	26	26
Total noncurrent regulatory liabilities	988	1,024
Operating lease liabilities	10	13
Accrued pension and other post-retirement benefit costs	8	7
Other noncurrent liabilities	172	180
Total other noncurrent liabilities	2,137	2,120
Commitments and Contingencies
Equity
Common stock	1,635	1,635
Retained earnings	2,416	2,037
Total Duke Energy Corporation stockholders' equity	4,051	3,672
Noncontrolling interests	1	1
Total equity	4,052	3,673
Total Liabilities and Equity	11,067	10,335
Piedmont | Affiliated entity
Current Assets
Receivables of VIEs (net of allowance for doubtful accounts)	10	11
Current Liabilities
Accounts payable (includes $188 at 2023 related to VIEs)	54	51
Notes payable to affiliated companies	$ 538	$ 514