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Long-Term Debt (Detail) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2013
Dec. 28, 2012
Debt Instrument [Line Items]    
$1,750 Credit Facility $ 0 $ 15
Other 182 186
Long-term debt 3,255 2,935
Less current portion (49) (407)
Long-term debt, noncurrent 3,206 2,528
Series G, Senior Notes 5.810% Due November 10, 2015
   
Debt Instrument [Line Items]    
Senior Notes 310 [1] 309 [1]
Debt instrument, stated interest rate 5.81%  
Senior Notes, face amount 316  
Senior Notes, effective interest rate 6.58%  
Series H, Senior Notes 6.200% Due June 15, 2016
   
Debt Instrument [Line Items]    
Senior Notes 289 [1] 289 [1]
Debt instrument, stated interest rate 6.20%  
Senior Notes, face amount 289  
Senior Notes, effective interest rate 6.35%  
Series I, Senior Notes 6.375% Due June 15, 2017
   
Debt Instrument [Line Items]    
Senior Notes 292 [1] 292 [1]
Debt instrument, stated interest rate 6.375%  
Senior Notes, face amount 293  
Senior Notes, effective interest rate 6.51%  
Series J, Matured February 15, 2013
   
Debt Instrument [Line Items]    
Senior Notes 0 400 [1]
Series K, Senior Notes 3.000% Due March 1, 2019
   
Debt Instrument [Line Items]    
Senior Notes 595 [1] 594 [1]
Debt instrument, stated interest rate 3.00%  
Senior Notes, face amount 600  
Senior Notes, effective interest rate 4.17%  
Series L, Senior Notes 3.250% Due September 15, 2022
   
Debt Instrument [Line Items]    
Senior Notes 349 [1] 349 [1]
Debt instrument, stated interest rate 3.25%  
Senior Notes, face amount 350  
Senior Notes, effective interest rate 3.32%  
Commercial Paper
   
Debt Instrument [Line Items]    
Commercial paper, average interest rate of 0.3781% at March 31, 2013 $ 1,238 $ 501
Long-term debt, average interest rate 0.3781%  
[1] Face amount and effective interest rate are as of March 31, 2013.