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Note 18 - Share Repurchase Programs (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Share Repurchase Program [Table Text Block]

		Number of Shares Purchased								Average Price Paid [a]
		*2021*				2020				*2021*				2020
First quarter [b]			6,691,421				14,305,793			$	209.50			$	178.66
Second quarter [c]			12,204,409				-				222.46				-
Third quarter [d]			8,604,239				4,045,575				210.31				98.87
Fourth quarter			5,837,551				3,780,743				233.71				198.07
Total			33,337,620				22,132,111			$	218.69			$	167.39
Remaining number of shares that may be repurchased under current authority															77,685,350