Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Allowance for doubtful accounts - receivables	$ 55	$ 40
Inventory (includes $462 at 2023 related to VIEs)	4,292	3,584
Regulatory assets	3,648	3,485
Current Assets: Other	431	973
Other Noncurrent Assets: Regulatory assets	13,618	14,645
Other (including amounts related to VIEs)	3,964	3,400
Accounts payable	4,228	4,754
Current maturities of long-term debt	2,800	3,878
Long-Term Debt (includes amounts related to VIEs)	$ 72,452	$ 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)	$ 1,393	$ 1,502
Consolidated VIEs
Allowance for doubtful accounts - receivables of VIEs	150	176
Inventory (includes $462 at 2023 related to VIEs)	462
Regulatory assets	110	106
Current Assets: Other	90	116
Other Noncurrent Assets: Regulatory assets	1,642	1,715
Other (including amounts related to VIEs)	49	52
Accounts payable	188
Current maturities of long-term debt	428	350
Long-Term Debt (includes amounts related to VIEs)	3,000	$ 3,108
Other (includes $54 at 2023 related to VIEs)	$ 35
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