Earnings Per Share Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | ||||
---|---|---|---|---|---|
Dec. 31, 2016 |
Jan. 02, 2016 |
Jan. 03, 2015 |
Aug. 08, 2016 |
Feb. 11, 2014 |
|
Earnings Per Share [Line Items] | |||||
Anti-dilutive stock options | 3,100,328 | 2,264,711 | 1,116,576 | ||
Common stock, shares authorized | 320,000,000 | 320,000,000 | |||
Preferred stock, shares authorized | 2,000,000 | ||||
Preferred stock, par or stated value Per Share | $ 1 | ||||
Purchases of shares under employee stock plans | $ (4.9) | $ (7.7) | $ (10.5) | ||
Common stock repurchase program, authorized amount | $ 300.0 | $ 200.0 | |||
Purchase of common stock for treasury | $ (61.9) | (92.6) | |||
Series A junior participating preferred stock [Member] | |||||
Earnings Per Share [Line Items] | |||||
Preferred stock, shares authorized | 150,000 | ||||
Series B junior participating preferred stock [Member] | |||||
Earnings Per Share [Line Items] | |||||
Preferred stock, shares authorized | 500,000 | ||||
Treasury Stock [Member] | |||||
Earnings Per Share [Line Items] | |||||
Purchase of common stock for treasury | $ (61.9) | $ (92.6) | $ 0.0 |