Long-Term Debt and Financing Arrangements - Additional Information (Detail) (USD $) Share data in Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Debt Instrument [Line Items]
Unamortized gain on terminated swap	$ 24,100,000		$ 24,100,000
Short-term Debt, Terms			P1Y
Long-term debt fair value adjustment	15,900,000		15,900,000
Commercial paper borrowings outstanding	1,300,000,000		1,300,000,000
Commercial paper borrowings capacity	2,000,000,000		2,000,000,000
Notes payable due 2016 | Fixed-to-Floating Interest Rate Swaps Terminated
Debt Instrument [Line Items]
Debt instrument, face amount	300,000,000		300,000,000
Unamortized gain on terminated swap	9,400,000		9,400,000
Long-term debt fair value adjustment	14,000,000		14,000,000
Notes payable due 2021 | Fixed-to-Floating Interest Rate Swaps Terminated
Debt Instrument [Line Items]
Unamortized gain on terminated swap	15,400,000		15,400,000
Notes payable due 2021 | Fixed to Floating Interest Rate Swap
Debt Instrument [Line Items]
Debt instrument, face amount	400,000,000		400,000,000
Unamortized gain on terminated swap	300,000		300,000
Notes payable due 2028 | Fixed to Floating Interest Rate Swap
Debt Instrument [Line Items]
Debt instrument, face amount	150,000,000		150,000,000
Unamortized gain on terminated swap	11,900,000		11,900,000
Notes payable due 2040
Debt Instrument [Line Items]
Unamortized gain on terminated swap	300,000		300,000
Notes payable due 2040 | Fixed to Floating Interest Rate Swap
Debt Instrument [Line Items]
Debt instrument, face amount	400,000,000		400,000,000
Unamortized gain on terminated swap	46,700,000		46,700,000
Committed Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	1,200,000,000		1,200,000,000
Line of Credit Facility Committed Borrowing Capacity	500,000,000		500,000,000
Line of Credit Facility Foreign Currency Sublimit	250,000,000		250,000,000
Amount of Credit Facility Foreign Currency Sublimit	400,000,000		400,000,000
New Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	1,500,000,000		1,500,000,000
Old Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,000,000,000		$ 1,000,000,000
Number of stock warrants
Debt Instrument [Line Items]
Antidilutive securities excluded from the computation of EPS	0	4,939	0	4,939