Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share, Basic and Diluted [Abstract]

Basic and Diluted Earnings (Loss) Per Share

Basic and diluted earnings per share were calculated as follows:

	Years ended December 31
In millions, except per share data	2021		2020		2019
Net income	$	553.0	$	358.6	$	355.7
Net income from continuing operations	$	556.0	$	357.1	$	361.7
Weighted average ordinary shares outstanding
Basic	165.8		166.5		169.4
Dilutive impact of stock options and restricted stock awards	1.7		0.9		1.0
Diluted	167.5		167.4		170.4
Earnings (loss) per ordinary share
Basic
Continuing operations	$	3.36	$	2.14	$	2.14
Discontinued operations	(0.02)		0.01		(0.04)
Basic earnings per ordinary share	$	3.34	$	2.15	$	2.10
Diluted
Continuing operations	$	3.32	$	2.13	$	2.12
Discontinued operations	(0.02)		0.01		(0.03)
Diluted earnings per ordinary share	$	3.30	$	2.14	$	2.09
Anti-dilutive stock options excluded from the calculation of diluted earnings per share	0.1		1.7		2.1