Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Allowance for doubtful accounts - receivables	$ 40	$ 45
Regulatory Assets: Current	3,485	2,150
Current Assets: Other	1,067	584
Other Noncurrent Assets: Regulatory assets	14,645	12,487
Other (including amounts related to VIEs)	3,400	3,632
Current maturities of long-term debt	4,154	3,387
Long-term debt	67,061	60,448
Other (includes amounts related to VIEs)	$ 1,502	$ 1,348
Common stock, par value (usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	2,000,000,000	2,000,000,000
Common stock, shares outstanding (in shares)	770,000,000	769,000,000
Membership interests	$ 2,531	$ 1,840
Total pretax impact to Retained Earnings	51,853	51,136
Stockholders' Equity Attributable to Parent	49,322	49,296
VIEs
Allowance for doubtful accounts - receivables of VIEs	176	76
Regulatory Assets: Current	106	105
Current Assets: Other	116	41
Other Noncurrent Assets: Regulatory assets	1,715	1,824
Other (including amounts related to VIEs)	52	30
Current maturities of long-term debt	350	76
Long-term debt	$ 3,108	$ 3,379
Series A Preferred Stock
Preferred stock, par value (in usd per share)	$ 0.001	$ 0.001
Preferred stock, depositary shares authorized (in shares)	40,000,000	40,000,000
Preferred stock, depositary shares outstanding (in shares)	40,000,000	40,000,000
Series B Preferred Stock
Preferred stock, par value (in usd per share)	$ 0.001	$ 0.001
Preferred stock, depositary shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, depositary shares outstanding (in shares)	1,000,000	1,000,000
Duke Energy Carolinas
Allowance for doubtful accounts - receivables	$ 3	$ 1
Regulatory Assets: Current	1,095	544
Current Assets: Other	216	95
Other Noncurrent Assets: Regulatory assets	4,293	2,935
Other (including amounts related to VIEs)	1,036	1,248
Current maturities of long-term debt	1,018	362
Long-term debt	12,948	12,595
Other (includes amounts related to VIEs)	527	536
Duke Energy Carolinas | VIEs
Allowance for doubtful accounts - receivables of VIEs	65	41
Regulatory Assets: Current	12	12
Current Assets: Other	8
Other Noncurrent Assets: Regulatory assets	208	220
Current maturities of long-term debt	10	5
Long-term debt	689	703
Progress Energy
Allowance for doubtful accounts - receivables	13	11
Regulatory Assets: Current	1,833	1,030
Current Assets: Other	342	125
Other Noncurrent Assets: Regulatory assets	7,146	5,909
Other (including amounts related to VIEs)	1,066	1,242
Current maturities of long-term debt	697	1,082
Long-term debt	21,592	19,591
Other (includes amounts related to VIEs)	$ 222	$ 162
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100	100
Common stock, shares outstanding (in shares)	100	100
Membership interests		$ 3
Total pretax impact to Retained Earnings	$ 21,406	17,148
Stockholders' Equity Attributable to Parent	21,406	17,145
Progress Energy | VIEs
Allowance for doubtful accounts - receivables of VIEs	68	25
Regulatory Assets: Current	94	93
Current Assets: Other	88	39
Other Noncurrent Assets: Regulatory assets	1,507	1,603
Current maturities of long-term debt	340	71
Long-term debt	2,003	2,293
Duke Energy Progress
Allowance for doubtful accounts - receivables	4	4
Regulatory Assets: Current	690	533
Current Assets: Other	174	83
Other Noncurrent Assets: Regulatory assets	4,724	4,118
Other (including amounts related to VIEs)	650	792
Current maturities of long-term debt	369	556
Long-term debt	10,568	9,543
Other (includes amounts related to VIEs)	76	87
Duke Energy Progress | VIEs
Allowance for doubtful accounts - receivables of VIEs	40	17
Regulatory Assets: Current	39	39
Current Assets: Other	42
Other Noncurrent Assets: Regulatory assets	681	720
Current maturities of long-term debt	34	15
Long-term debt	1,114	1,097
Duke Energy Florida
Allowance for doubtful accounts - receivables	8	8
Regulatory Assets: Current	1,143	497
Current Assets: Other	108	80
Other Noncurrent Assets: Regulatory assets	2,422	1,791
Other (including amounts related to VIEs)	372	399
Current maturities of long-term debt	328	76
Long-term debt	9,381	8,406
Other (includes amounts related to VIEs)	84	73
Duke Energy Florida | VIEs
Allowance for doubtful accounts - receivables of VIEs	28	8
Regulatory Assets: Current	55	54
Current Assets: Other	46	39
Other Noncurrent Assets: Regulatory assets	826	883
Current maturities of long-term debt	306	56
Long-term debt	890	1,196
Duke Energy Ohio
Allowance for doubtful accounts - receivables	6	4
Regulatory Assets: Current	103	72
Current Assets: Other	86	57
Other Noncurrent Assets: Regulatory assets	581	635
Other (including amounts related to VIEs)	71	84
Current maturities of long-term debt	475
Long-term debt	2,745	3,168
Other (includes amounts related to VIEs)	$ 96	$ 101
Common stock, par value (usd per share)	$ 8.50	$ 8.50
Common stock, shares authorized (in shares)	120,000,000	120,000,000
Common stock, shares outstanding (in shares)	90,000,000	90,000,000
Stockholders' Equity Attributable to Parent	$ 4,766	$ 4,464
Duke Energy Indiana
Allowance for doubtful accounts - receivables	4	3
Regulatory Assets: Current	249	277
Current Assets: Other	197	68
Other Noncurrent Assets: Regulatory assets	875	1,278
Other (including amounts related to VIEs)	254	296
Current maturities of long-term debt	303	84
Long-term debt	3,854	4,089
Other (includes amounts related to VIEs)	65	44
Piedmont
Allowance for doubtful accounts - receivables	14	15
Regulatory Assets: Current	119	141
Current Assets: Other	4	9
Other Noncurrent Assets: Regulatory assets	392	316
Other (including amounts related to VIEs)	272	288
Current maturities of long-term debt	45	0
Long-term debt	3,318	2,968
Other (includes amounts related to VIEs)	$ 180	$ 158
Preferred stock, par value (in usd per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	100	100
Common stock, shares outstanding (in shares)	100	100
Membership interests	$ 1
Total pretax impact to Retained Earnings	3,673	$ 3,349
Stockholders' Equity Attributable to Parent	$ 3,672	$ 3,349