Condensed Consolidated Balance Sheets - Progress Energy (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Allowance for doubtful accounts - receivables	$ 49	$ 40
Regulatory assets	3,489	3,485
Current Assets: Other	602	973
Regulatory assets	13,745	14,645
Current maturities of long-term debt	4,034	3,878
Long-Term Debt	$ 71,353	$ 65,873
Common stock, par value (in 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)	771,000,000	770,000,000
Other (includes $54 at 2023 related to VIEs)	$ 1,325	$ 1,502
Variable Interest Entity
Allowance for doubtful accounts - receivables of VIEs	154	176
Regulatory assets	109	106
Current Assets: Other	56	116
Regulatory assets	1,668	1,715
Current maturities of long-term debt	428	350
Long-Term Debt	3,025	3,108
Other (includes $54 at 2023 related to VIEs)	54
Progress Energy
Allowance for doubtful accounts - receivables	16	13
Regulatory assets	1,696	1,833
Current Assets: Other	164	342
Regulatory assets	6,448	7,146
Current maturities of long-term debt	1,265	697
Long-Term Debt	$ 21,866	$ 21,592
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100	100
Common stock, shares outstanding (in shares)	100	100
Other (includes $54 at 2023 related to VIEs)	$ 198	$ 222
Progress Energy | Variable Interest Entity
Allowance for doubtful accounts - receivables of VIEs	61	68
Regulatory assets	97	94
Current Assets: Other	42	88
Regulatory assets	1,469	1,507
Current maturities of long-term debt	417	340
Long-Term Debt	1,911	$ 2,003
Other (includes $54 at 2023 related to VIEs)	$ 30