Earnings Per Share (Details) - shares shares in Millions	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Earnings Per Share [Abstract]
Shares excluded from the calculation of the effect of dilutive securities (in shares)	0.3	1.2
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Denominator for Basic Earnings Per Share (in shares)	44.8	44.7
Effect of Dilutive Securities (in shares)	0.3	0.3
Denominator for Diluted Earnings Per Share (in shares)	45.1	45.0