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Condensed Consolidated Balance Sheets - Piedmont (Parenthetical) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Allowance for doubtful accounts - receivables | $ 49 | $ 40
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
Piedmont |  |
Allowance for doubtful accounts - receivables | $ 10 | $ 14
Common stock, shares authorized (in shares) | 100 | 100
Common stock, shares outstanding (in shares) | 100 | 100

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