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Earnings Per Share (EPS)
 12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Earnings Per Share (EPS) EARNINGS PER SHARE (EPS)
Basic EPS is calculated by dividing Net earnings attributable to Ingersoll-Rand plc by the weighted-average number of ordinary shares outstanding for the applicable period. Diluted EPS is calculated after adjusting the denominator of the basic EPS calculation for the effect of all potentially dilutive ordinary shares, which in the Company’s case, includes shares issuable under share-based compensation plans. The following table summarizes the weighted-average number of ordinary shares outstanding for basic and diluted earnings per share calculations:
In millions
 
2019
 
2018
 
2017
Weighted-average number of basic shares outstanding
 
241.6

 
247.2

 
254.9

Shares issuable under incentive stock plans
 
2.8

 
2.9

 
3.2

Weighted-average number of diluted shares outstanding
 
244.4

 
250.1

 
258.1

Anti-dilutive shares
 
—

 
1.5

 
1.6

 
 
 
 
 
 
 
Dividends declared per ordinary share
 
2.12

 
1.96

 
1.70