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Note 16 - Share Repurchase Programs - Schedule of Share Repurchase Programs (Details) - $ / shares
 3 Months Ended 6 Months Ended 9 Months Ended 36 Months Ended
Sep. 30, 2022
Jun. 30, 2022
 [2]
Mar. 31, 2022
 [3]
Sep. 30, 2021
 [1]
Jun. 30, 2021
 [2]
Mar. 31, 2021
 [3]
Sep. 30, 2022
Sep. 30, 2022
Sep. 30, 2021
Mar. 31, 2022
Treasury Stock, Number of Shares Purchased (in shares) 9,490,339 [1] 3,100,683 11,014,201 8,604,239 12,204,409 6,691,421 12,600,000 23,605,223 27,500,069 83,300,000
Treasury Stock, Average Price per Share (in dollars per share) [4] $ 221.52 [1] $ 232.87 $ 249.95 $ 210.31 $ 222.46 $ 209.50   $ 236.28 $ 215.51  
Remaining number of shares that may be repurchased under current authority (in shares) 87,408,978           87,408,978 87,408,978    
[1] Includes an incremental 1,983,859 shares received upon final settlement in 2021 under accelerated share repurchase programs.
[2] Includes an incremental 1,847,185 shares received upon final settlement in 2022 and 7,209,156 shares repurchased in 2021 under accelerated share repurchase programs.
[3] Includes 7,012,232 shares repurchased in 2022 under accelerated share repurchase programs.
[4] In the period of the final settlement, the average price paid under the accelerated share repurchase programs is calculated based on the total program value less the value assigned to the initial delivery of shares. The average price of the completed 2022 and 2021 accelerated share repurchase programs was $248.32 and $217.56, respectively.