Earnings per share (Tables)

9 Months Ended

Sep. 26, 2020

Earnings Per Share [Abstract]

Schedule of computation of net income per share

The computation of earnings per share is presented below:

	Three months ended				Nine months ended
(dollars in millions, except share numbers and per share amounts)	September 26, 2020		September 28, 2019		September 26, 2020		September 28, 2019
Net income attributable to shareholders	$	41.9	$	35.5	$	55.1	$	670.7
Weighted average number of shares outstanding	290,769,392		290,109,231		290,634,292		290,032,416
Dilutive effect of share-based awards	1,672,207		1,003,871		1,249,143		1,634,515
Diluted weighted average number of shares outstanding	292,441,599		291,113,102		291,883,435		291,666,931
Number of anti-dilutive shares excluded from the diluted (loss) earnings per share calculation	3,896,143		3,623,701		5,811,571		3,686,986
Basic earnings per share	$	0.14	$	0.12	$	0.19	$	2.31
Diluted earnings per share	$	0.14	$	0.12	$	0.19	$	2.30