Earnings Per Share and Shareholders' Equity (Tables)

9 Months Ended

Sep. 28, 2019

Earnings Per Share [Abstract]

Schedule of earnings per share, basic and diluted

A reconciliation of the numerators and denominators used in the basic and diluted earnings per share ("EPS") calculation is as follows (in millions):

	Three Months Ended					Nine Months Ended
	September 28, 2019		September 29, 2018			September 28, 2019		September 29, 2018
Numerator:
Net income (loss)	$	92.2	$	(67.5	)	$	165.1	$	49.6
Denominator:
Weighted average shares outstanding for basic EPS	136.0		137.4			136.0		138.5
Dilutive effect of share-based awards*	0.8		—			0.4		0.5
Weighted average shares outstanding for diluted EPS	136.8		137.4			136.4		139.0
Anti-dilutive share-based awards excluded from computation of diluted EPS*	1.5		—			1.8		1.2

* In the period of a net loss, diluted shares equal basic shares.