Summary of Capped Call (Equity Options) Issued (Detail) (USD $)	1 Months Ended	3 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	Mar. 29, 2014	Mar. 30, 2013	Dec. 28, 2013	Dec. 28, 2013 Call Option [Member]	Mar. 29, 2014 Call Option [Member]	Dec. 29, 2012 Call Option [Member]	Dec. 28, 2013 Minimum	Dec. 28, 2013 Maximum	Nov. 30, 2010 Capped call (equity options)	Dec. 28, 2013 Capped call (equity options)	Mar. 29, 2014 Capped call (equity options)	Mar. 29, 2014 Notes 2 Point 25 Percent due 2018 [Member]	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]	Mar. 29, 2014 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	Dec. 28, 2013 Common Stock [Member] Maximum	Nov. 30, 2010 Convertible Preferred Stock [Member]	Dec. 28, 2013 Convertible Preferred Stock [Member]	Mar. 29, 2014 Convertible Preferred Stock [Member]	Dec. 28, 2013 Convertible Preferred Stock [Member] Maximum
Option Indexed to Issuer's Equity [Line Items]
Long-term Debt		$ 3,839,600,000		$ 3,809,300,000									$ 345,000,000	$ 345,000,000	$ 632,500,000	$ 632,500,000	$ 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										$ 100.00
Equity Units Conversion Rate Number Of Common Stock Shares																		1.0122
Convertible Notes Conversion Rate Number Of Common Stock Shares																				1.3333		1.3606	1.2399
Payments for Repurchase of Common Stock		19,400,000	21,100,000															98.80	80.65
Common Stock, Shares, Issued		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						9,300,000	64,400,000
Open Option Contracts Written, at Fair Value												$ 80,500,000