Long-Term Debt and Financing Arrangements (Detail) (USD $) Share data in Thousands, unless otherwise specified																									3 Months Ended		6 Months Ended
	Jun. 29, 2013	Dec. 29, 2012	Jun. 29, 2013 Notes payable due 2016	Dec. 29, 2012 Notes payable due 2016	Jun. 29, 2013 Convertible notes payable due in 2018 (junior subordinated)	Dec. 29, 2012 Convertible notes payable due in 2018 (junior subordinated)	Nov. 30, 2010 Convertible notes payable due in 2018 (junior subordinated)	Jun. 29, 2013 Notes payable due 2021	Dec. 29, 2012 Notes payable due 2021	Jun. 29, 2013 Notes Payable due 2022 [Member]	Jun. 29, 2013 Notes Payable Maturities 2022 [Member]	Dec. 29, 2012 Notes Payable Maturities 2022 [Member]	Jun. 29, 2013 Notes payable due 2028	Dec. 29, 2012 Notes payable due 2028	Jun. 29, 2013 Notes payable due 2040	Dec. 29, 2012 Notes payable due 2040	Jun. 29, 2013 Notes 5 Point 75 Percent Due 2052 [Member]	Dec. 29, 2012 Notes 5 Point 75 Percent Due 2052 [Member]	Jun. 29, 2013 Other, payable in varying amounts through 2021	Dec. 29, 2012 Other, payable in varying amounts through 2021	Jun. 29, 2013 Other, payable in varying amounts through 2021 Minimum	Dec. 29, 2012 Other, payable in varying amounts through 2021 Minimum	Jun. 29, 2013 Other, payable in varying amounts through 2021 Maximum	Dec. 29, 2012 Other, payable in varying amounts through 2021 Maximum	Jun. 29, 2013 Number of stock warrants	Jun. 30, 2012 Number of stock warrants	Jun. 29, 2013 Number of stock warrants	Jun. 30, 2012 Number of stock warrants	Jun. 29, 2013 Fixed-to-Floating Interest Rate Swaps Terminated Notes payable due 2016	Jun. 29, 2013 Fixed to Floating Interest Rate Swap Notes payable due 2021	Jun. 29, 2013 Fixed to Floating Interest Rate Swap Notes payable due 2028	Jun. 29, 2013 Fixed to Floating Interest Rate Swap Notes payable due 2040
Debt Instrument [Line Items]
Long-term debt fair value adjustment	$ 15,900,000																												$ 14,000,000
Commercial paper borrowings outstanding	1,300,000,000
Commercial paper borrowings capacity	2,000,000,000
Antidilutive securities excluded from the computation of EPS																									0	4,939	0	4,939
Debt instrument, face amount																													300,000,000	400,000,000	150,000,000	400,000,000
Long-term debt, interest rate			5.75%	5.75%	4.25%	4.25%		3.40%	3.40%		2.90%	2.90%	7.05%	7.05%	5.20%	5.20%	5.75%	5.75%			0.00%	0.00%	6.62%	6.62%
Long-term debt, including current maturities	3,440,800,000	3,536,900,000	323,400,000	326,800,000	632,500,000	632,500,000	632,500,000	391,000,000	417,100,000	799,300,000		799,300,000	154,000,000	169,600,000	353,000,000	404,400,000	750,000,000	750,000,000	37,600,000	37,200,000
Less: Current maturities of long-term debt	(11,900,000)	(10,400,000)
Long-term debt	$ 3,428,900,000	$ 3,526,500,000