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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
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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.

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- Definition The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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