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Capital Stock Repurchase Plan Transactions (Tables)	9 Months Ended
	Sep. 30, 2021
Capital Stock Repurchase Plan Transactions [Abstract]
Schedule Of Repurchased Capital Stock	Three months ended September 30, Nine months ended September 30, 2021 2020 2021 2020 Total cost of repurchased shares (in thousands) $ 163,731 $ 24,975 $ 330,380 $ 147,123Shares repurchased 350,000 50,000  700,000 325,000Weighted average price per share $ 467.80 $ 499.48 $ 471.97 $ 452.69

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- Definition

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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