Earnings Per Share - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2013	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015	Jan. 02, 2016	Dec. 28, 2013
Stockholders Equity Note [Line Items]
Mandatory Convertible Equity Units	$ 345.0			$ 345.0
Document Period End Date				Jul. 02, 2016
Long-term Debt				$ 345.0
Common Stock, Par or Stated Value Per Share		$ 2.50		$ 2.50		$ 2.50
Common Stock, Shares, Issued		0		0		176,902,738
Minimum [Member]
Stockholders Equity Note [Line Items]
Common Stock, Shares, Issued						3,500,000.0
Maximum [Member]
Stockholders Equity Note [Line Items]
Common Stock, Shares, Issued						4,300,000
Stock Options [Member]
Stockholders Equity Note [Line Items]
Antidilutive securities excluded from the computation of EPS		972,000	642,000	1,281,000	808,000
Notes 2 Point 25 Percent due 2018 [Member]
Stockholders Equity Note [Line Items]
Common Stock, Par or Stated Value Per Share						$ 100.00
Common Stock [Member]
Stockholders Equity Note [Line Items]
Equity Units Conversion Rate Number Of Common Stock Shares				1.0150
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