Quarterly report pursuant to Section 13 or 15(d)

Other Comprehensive Income (Loss), Accumulated Other Comprehensive Income (Loss) (Detail)

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Other Comprehensive Income (Loss), Accumulated Other Comprehensive Income (Loss) (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 29, 2014
Mar. 30, 2013
Dec. 28, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated Other Comprehensive Income (Loss), Net of Tax $ 1,156   $ 1,243
Other comprehensive income before reclassifications (57)    
Amounts reclassified out of accumulated other comprehensive ncome (64)    
Tax effects 34    
Other comprehensive income (loss) (87) (11)  
Unrealized holding gains (losses) on available-for-sale investments [Member]
     
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment Including Other Than Temporary Impairments, Net of Tax 1,805   1,882
Other comprehensive income before reclassifications (55)    
Amounts reclassified out of accumulated other comprehensive ncome (63)    
Tax effects 41    
Other comprehensive income (loss) (77)    
Deferred Tax Asset Valuation Allowance [Member]
     
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income before reclassifications 0    
Amounts reclassified out of accumulated other comprehensive ncome 0    
Tax effects (2)    
Other comprehensive income (loss) (2)    
Accumulated Other Comprehensive Income (Loss), Net Change In Deferred Tax Asset Valuation Allowance 65   67
Unrealized holding gains (losses) on derivatives [Member]
     
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income before reclassifications 33    
Amounts reclassified out of accumulated other comprehensive ncome (12)    
Tax effects (7)    
Other comprehensive income (loss) 14    
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax 18   4
Prior service credits (costs) [Member]
     
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income before reclassifications (49)    
Amounts reclassified out of accumulated other comprehensive ncome 1    
Tax effects 6    
Other comprehensive income (loss) (42)    
Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost, Net Of Tax (56)   (14)
Actuarial gains (losses) [Member]
     
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income before reclassifications (11)    
Amounts reclassified out of accumulated other comprehensive ncome 10    
Tax effects (1)    
Other comprehensive income (loss) (2)    
Accumulated Other Comprehensive Income (Loss), Net Actuarial Gains Loss, Net Of Tax (604)   (602)
Foreign currency translation adjustment [Member]
     
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income before reclassifications 25    
Amounts reclassified out of accumulated other comprehensive ncome 0    
Tax effects (3)    
Other comprehensive income (loss) 22    
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax $ (72)   $ (94)