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Earnings Per Share (EPS) (Tables)
 9 Months Ended
Sep. 30, 2023
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share Basic and Diluted Shares
The following table summarizes the weighted-average number of ordinary shares outstanding for basic and diluted EPS calculations for the three and nine months ended September 30:
Three months endedNine months ended
In millions2023202220232022
Weighted-average number of basic shares87.9 87.9 87.9 88.0 
Shares issuable under share-based compensation plans0.3 0.3 0.4 0.4 
Weighted-average number of diluted shares88.2 88.2 88.3 88.4