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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Allowance for doubtful accounts - receivables | $ 102 | $ 55
Inventory | 4,281 | 4,292
Regulatory assets | 3,082 | 3,648
Current Assets: Other | 359 | 431
Regulatory assets | 13,636 | 13,618
Accounts payable | 3,364 | 4,228
Current maturities of long-term debt | 2,274 | 2,800
Long-Term Debt | 74,979 | 72,452
Other | $ 1,352 | $ 1,393
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) | 772,000,000 | 771,000,000
Preferred stock, Series A |  |
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
Preferred stock, Series B |  |
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
Variable Interest Entity |  |
Allowance for doubtful accounts - receivables of VIEs | $ 102 | $ 150
Inventory | 470 | 462
Regulatory assets | 110 | 110
Current Assets: Other | 44 | 90
Regulatory assets | 1,616 | 1,642
Accounts payable | 188 | 188
Current maturities of long-term debt | 929 | 428
Long-Term Debt | 2,134 | 3,000
Other | $ 42 | $ 35

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