Long-Term Debt and Financing Arrangements (Detail) (USD $) Share data in Thousands, unless otherwise specified																									3 Months Ended
	Mar. 30, 2013	Dec. 29, 2012	Mar. 30, 2013 Notes payable due 2016	Dec. 29, 2012 Notes payable due 2016	Mar. 30, 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)	Mar. 30, 2013 Notes payable due 2021	Dec. 29, 2012 Notes payable due 2021	Mar. 30, 2013 Notes Payable due 2022 [Member]	Mar. 30, 2013 Notes Payable Maturities 2022 [Member]	Dec. 29, 2012 Notes Payable Maturities 2022 [Member]	Mar. 30, 2013 Notes payable due 2028	Dec. 29, 2012 Notes payable due 2028	Mar. 30, 2013 Notes payable due 2040	Dec. 29, 2012 Notes payable due 2040	Mar. 30, 2013 Notes 5 Point 75 Percent Due 2052 [Member]	Dec. 29, 2012 Notes 5 Point 75 Percent Due 2052 [Member]	Mar. 30, 2013 Other, payable in varying amounts through 2021	Dec. 29, 2012 Other, payable in varying amounts through 2021	Mar. 30, 2013 Other, payable in varying amounts through 2021 Minimum	Dec. 29, 2012 Other, payable in varying amounts through 2021 Minimum	Mar. 30, 2013 Other, payable in varying amounts through 2021 Maximum	Dec. 29, 2012 Other, payable in varying amounts through 2021 Maximum	Mar. 30, 2013 Number of stock warrants	Mar. 31, 2012 Number of stock warrants	Mar. 30, 2013 Fixed-to-Floating Interest Rate Swaps Terminated Notes payable due 2016	Mar. 30, 2013 Fixed to Floating Interest Rate Swap Notes payable due 2021	Mar. 30, 2013 Fixed to Floating Interest Rate Swap Notes payable due 2028	Mar. 30, 2013 Fixed to Floating Interest Rate Swap Notes payable due 2040
Debt Instrument [Line Items]
Long-term debt fair value adjustment	$ 16,200,000																										$ 15,000,000
Commercial paper borrowings outstanding	1,331,100,000
Commercial paper borrowings capacity	2,000,000,000
Antidilutive securities excluded from the computation of EPS																									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%	7.14%	7.14%
Long-term debt, including current maturities	3,504,700,000	3,536,900,000	325,100,000	326,800,000	632,500,000	632,500,000	632,500,000	410,700,000	417,100,000	799,300,000		799,300,000	164,700,000	169,600,000	384,700,000	404,400,000	750,000,000	750,000,000	37,700,000	37,200,000
Less: Current maturities of long-term debt	(10,600,000)	(10,400,000)
Long-term debt	$ 3,494,100,000	$ 3,526,500,000