Weighted-Average Stock Options and Warrants Outstanding Not included in Computation of Diluted Shares Outstanding (Detail) - USD ($)		3 Months Ended			9 Months Ended		12 Months Ended
	Nov. 17, 2016	Sep. 30, 2017	Jul. 01, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016	Dec. 31, 2016	Dec. 28, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Long-term Debt		$ 3,826,700,000			$ 3,826,700,000		$ 3,823,100,000
Preferred Stock Par Value Per Share		$ 2.50			$ 2.50		$ 2.50
Debt instrument, face amount		$ 3,856,900,000			$ 3,856,900,000
Payments for Repurchase of Common Stock		$ 600,000		$ 600,000	$ 16,200,000	$ 362,700,000	$ 374,100,000
Common Stock, Shares, Issued	3,504,165	176,902,738			176,902,738		176,902,738
Equity Units Conversion Rate Number Of Common Stock Shares		0.7244	0.7241
Notes 2 Point 25 Percent due 2018 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Long-term Debt		$ 343,900,000			$ 343,900,000		$ 343,100,000
Preferred Stock Par Value Per Share							$ 100
Debt instrument, face amount		$ 345,000,000			$ 345,000,000
Common Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Equity Units Conversion Rate Number Of Common Stock Shares	1.0157
Common Stock [Member] | Minimum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Payments for Repurchase of Common Stock								$ 98.80
Equity Units Conversion Rate Number Of Common Stock Shares							1.0122	1.0122
Common Stock [Member] | Maximum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Payments for Repurchase of Common Stock								$ 80.65
Equity Units Conversion Rate Number Of Common Stock Shares							1.2399	1.2399