Condensed Consolidated Balance Sheets - Duke Energy Ohio - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Current Assets
Cash and cash equivalents	$ 253	$ 409
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
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
Asset retirement obligations	596	773
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
Additional paid-in capital	44,920	44,862
Retained earnings	2,235	2,637
Total equity	50,187	51,853
Total Liabilities and Equity	176,893	178,086
Duke Energy Ohio
Current Assets
Cash and cash equivalents	24	16
Receivables of VIEs (net of allowance for doubtful accounts)	112	73
Inventory (includes $462 at 2023 related to VIEs)	179	144
Regulatory assets	73	103
Other (includes amounts related to VIEs)	134	86
Total current assets	761	669
Property, Plant and Equipment
Cost	13,210	12,497
Accumulated depreciation and amortization	(3,451)	(3,250)
Net property, plant and equipment	9,759	9,247
Other Noncurrent Assets
Goodwill	920	920
Other Noncurrent Assets: Regulatory assets	676	581
Operating lease right-of-use assets, net	16	18
Other (including amounts related to VIEs)	84	71
Total other noncurrent assets	1,696	1,590
Total Assets	12,216	11,506
Current Liabilities
Accounts payable (includes $188 at 2023 related to VIEs)	338	380
Taxes accrued	316	317
Interest accrued	35	29
Current maturities of long-term debt		475
Asset retirement obligations	6	17
Regulatory liabilities	56	99
Other	65	74
Total current liabilities	1,500	1,960
Long-Term Debt (includes amounts related to VIEs)	3,493	2,745
Other Noncurrent Liabilities
Deferred income taxes	1,272	1,136
Total noncurrent asset retirement obligation	130	137
Total noncurrent regulatory liabilities	497	534
Operating lease liabilities	16	17
Accrued pension and other post-retirement benefit costs	97	90
Other noncurrent liabilities	86	96
Total other noncurrent liabilities	2,098	2,010
Commitments and Contingencies
Equity
Common stock	762	762
Additional paid-in capital	3,100	3,100
Retained earnings	1,238	904
Total equity	5,100	4,766
Total Liabilities and Equity	12,216	11,506
Duke Energy Ohio | Affiliated entity
Current Assets
Receivables of VIEs (net of allowance for doubtful accounts)	239	247
Current Liabilities
Accounts payable (includes $188 at 2023 related to VIEs)	71	72
Notes payable to affiliated companies	613	497
Long-Term Debt (includes amounts related to VIEs)	$ 25	$ 25