Capital Stock (Tables)	12 Months Ended
Dec. 31, 2021
Capital Stock [Abstract]
Schedule of Common Stock Shares Purchased and Retired	Shares of Common Stock Purchased Retired 2021 794,227 798,166 2020 824,685 830,338 2019 962,023 957,495

Tabular disclosure of treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock.

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