Condensed Consolidated Balance Sheets - Duke Energy Indiana - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current Assets
Cash and cash equivalents	$ 459	$ 253
Receivables of VIEs (net of allowance for doubtful accounts)	2,253	3,019
Inventory	4,281	4,292
Regulatory assets	3,082	3,648
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
Regulatory assets	13,636	13,618
Operating lease right-of-use assets, net	1,092	1,092
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
Asset retirement obligations	603	596
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
Investment tax credits	862	864
Other	1,352	1,393
Total other noncurrent liabilities	37,507	36,971
Commitments and Contingencies
Equity
Accumulated other comprehensive income (loss)	109	(6)
Total Liabilities and Equity	178,670	176,893
Duke Energy Indiana
Current Assets
Cash and cash equivalents	5	8
Receivables of VIEs (net of allowance for doubtful accounts)	429	156
Inventory	534	582
Regulatory assets	101	102
Other	59	98
Total current assets	1,140	1,143
Property, Plant and Equipment
Cost	19,097	18,900
Accumulated depreciation and amortization	(6,598)	(6,501)
Net property, plant and equipment	12,499	12,399
Other Noncurrent Assets
Regulatory assets	900	894
Operating lease right-of-use assets, net	48	50
Other	353	325
Total other noncurrent assets	1,301	1,269
Total Assets	14,940	14,811
Current Liabilities
Accounts payable	234	300
Taxes accrued	75	66
Interest accrued	73	54
Current maturities of long-term debt	4	4
Asset retirement obligations	131	120
Regulatory liabilities	213	209
Other	179	184
Total current liabilities	1,123	1,369
Long-Term Debt (includes amounts related to VIEs)	4,646	4,348
Other Noncurrent Liabilities
Deferred income taxes	1,476	1,436
Asset retirement obligations	672	689
Regulatory liabilities	1,450	1,459
Operating lease liabilities	45	46
Accrued pension and other post-retirement benefit costs	101	115
Investment tax credits	186	186
Other	13	0
Total other noncurrent liabilities	3,943	3,931
Commitments and Contingencies
Equity
Member's equity	5,078	5,012
Accumulated other comprehensive income (loss)	0	1
Total equity	5,078	5,013
Total Liabilities and Equity	14,940	14,811
Duke Energy Indiana | Affiliated Entity
Current Assets
Receivables of VIEs (net of allowance for doubtful accounts)	12	197
Current Liabilities
Accounts payable	78	176
Notes payable to affiliated companies	136	256
Long-Term Debt (includes amounts related to VIEs)	$ 150	$ 150