Earnings Per Share - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended		3 Months Ended		12 Months Ended
	Nov. 17, 2016	Nov. 30, 2016	Dec. 31, 2013	Apr. 01, 2017	Apr. 02, 2016	Dec. 31, 2016	Dec. 28, 2013
Stockholders Equity Note [Line Items]
Mandatory Convertible Equity Units			$ 345.0
Document Period End Date				Apr. 01, 2017
Long-term Debt				$ 345.0
Common Stock, Par or Stated Value Per Share				$ 2.50		$ 2.50
Equity Units Conversion Rate Number Of Common Stock Shares		3,504,165				418,234
Common Stock, Shares, Issued	3,504,165			176,902,738		176,902,738
Stock Options [Member]
Stockholders Equity Note [Line Items]
Antidilutive securities excluded from the computation of EPS				1,163,000	1,590,000
Notes 2 Point 25 Percent due 2018 [Member]
Stockholders Equity Note [Line Items]
Common Stock, Par or Stated Value Per Share						$ 100.00
Convertible Notes Payable Four Point Two Five Percent Due Twenty Eighteen [Member]
Stockholders Equity Note [Line Items]
Convertible Preferred Stock Shares Issuable Upon Conversion	3,504,165
Common Stock [Member]
Stockholders Equity Note [Line Items]
Equity Units Conversion Rate Number Of Common Stock Shares	1.0157
Common Stock [Member] | Minimum [Member]
Stockholders Equity Note [Line Items]
Equity Units Conversion Rate Number Of Common Stock Shares						1.0122	1.0122
Common Stock [Member] | Maximum [Member]
Stockholders Equity Note [Line Items]
Equity Units Conversion Rate Number Of Common Stock Shares						1.2399	1.2399