Summary of Capped Call (Equity Options) Issued (Detail) (USD $)	1 Months Ended	3 Months Ended		6 Months Ended			12 Months Ended				1 Months Ended	12 Months Ended			12 Months Ended		12 Months Ended		1 Months Ended	12 Months Ended
	Dec. 31, 2013	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013	Dec. 28, 2013	Dec. 28, 2013 Call Option [Member]	Jun. 28, 2014 Call Option [Member]	Dec. 28, 2013 Minimum [Member]	Dec. 28, 2013 Maximum [Member]	Nov. 30, 2010 Capped call (equity options)	Dec. 28, 2013 Capped call (equity options)	Jun. 28, 2014 Capped call (equity options)	Dec. 28, 2013 Notes 2 Point 25 Percent due 2018 [Member]	Dec. 28, 2013 Convertible Notes Payable Four Point Two Five Percent Due Twenty Eighteen [Member]	Nov. 30, 2010 Convertible Notes Payable Four Point Two Five Percent Due Twenty Eighteen [Member]	Dec. 28, 2013 Common Stock [Member] Minimum [Member]	Dec. 28, 2013 Common Stock [Member] Maximum [Member]	Nov. 30, 2010 Convertible Preferred Stock [Member]	Dec. 28, 2013 Convertible Preferred Stock [Member]	Jun. 28, 2014 Convertible Preferred Stock [Member]	Dec. 28, 2013 Convertible Preferred Stock [Member] Maximum [Member]
Option Indexed to Issuer's Equity [Line Items]
Long-term Debt		$ 4,261,200,000		$ 4,261,200,000		$ 3,889,400,000								$ 345,000,000		$ 632,500,000
Convertible Preferred Stock Shares Issuable Upon Conversion															6,100,000.0
Original Number of Options							12,200,000.0				8,433,123
Net Premium Paid	9,700,000										50,300,000
Common Stock, Par or Stated Value Per Share		$ 2.50		$ 2.50		$ 2.50								$ 100.00
Equity Units Conversion Rate Number Of Common Stock Shares																	1.0122
Convertible Notes Conversion Rate Number Of Common Stock Shares																			1.3333		1.3631	1.2399
Payments for Repurchase of Common Stock		0	3,700,000	19,400,000	24,800,000												98.80	80.65
Common Stock, Shares, Issued		176,906,265		176,906,265		176,906,265			3.5	4,300,000
Common Stock Price Per Share											$ 5.97	$ 2.77
Conversion of Stock, Shares Issued																			8,433,123	3,500,000.0
Stock Exercise Price Per Share									$ 98.80	$ 112.91
Stock Exercise Price Per Share Percentage Greater Than Closing Price						40.00%
Option Indexed to Issuer's Equity, Aggregate Fair Value		12,500,000		12,500,000				86,100,000
Open Option Contracts Written, at Fair Value													$ 102,800,000