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Common Stock Issued and Outstanding (Tables) | 12 Months Ended
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Dec. 31, 2022
Equity [Abstract] |
Activity in Number of Shares of Common Stock Issued and Outstanding | Activity in the number of shares of Common Stock issued and outstanding for the three years ended December 31, 2022 is shown below.
(Number of shares outstanding) | 2022 |  | 2021 |  | 2020
Beginning of year | 154,463,050 |  |  | 153,598,625 |  |  | 152,935,361 |
Stock options exercised 1 | 181,655 |  |  | 32,554 |  |  | 11,359 |
Restricted stock awards 1 | 822,614 |  |  | 831,871 |  |  | 651,905 |
End of year | 155,467,319 |  |  | 154,463,050 |  |  | 153,598,625 |
1 Shares issued upon exercise of stock options and award of restricted stock are less than the amount reflected in Note J due to withholdings for statutory income taxes owed upon issuance of shares.

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- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
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