Earnings Per Share and Shareholders Equity (Tables)

9 Months Ended

Sep. 30, 2017

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 30, 2017		October 1, 2016			September 30, 2017		October 1, 2016
Numerator:
Net income (loss)	$	44.5	$	(1,590.2	)	$	46.4	$	(2,653.7	)
Denominator:
Weighted average shares outstanding for basic EPS	141.3		143.3			142.5		143.2
Dilutive effect of share-based awards*	0.4		—			0.3		—
Weighted average shares outstanding for diluted EPS	141.7		143.3			142.8		143.2
Anti-dilutive share-based awards excluded from      computation of diluted EPS*	1.0		—			0.8		—

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

Schedule of share-based compensation, stock options, activity

We issued shares related to the exercise and vesting of share-based compensation as follows:

Three Months Ended		Nine Months Ended
September 30, 2017	October 1, 2016	September 30, 2017	October 1, 2016
99,800	185,000	146,100	283,000