Quarterly report pursuant to Section 13 or 15(d)

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

v3.5.0.2
Other Comprehensive Income (Loss), Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Oct. 01, 2016
Sep. 26, 2015
Oct. 01, 2016
Sep. 26, 2015
Dec. 26, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Other comprehensive income (loss) before reclassifications     $ 939    
Amounts reclassified out of accumulated other comprehensive income (loss) $ (27) $ 152 (450) $ 363  
Tax effects     (149)    
Other comprehensive income (loss) 480 (980) 340 (1,001)  
Unrealized holding gains (losses) on available-for-sale investments [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest 2,106   2,106   $ 1,749
Other comprehensive income (loss) before reclassifications     1,078    
Amounts reclassified out of accumulated other comprehensive income (loss)     (530)    
Tax effects     (191)    
Other comprehensive income (loss)     357    
Deferred tax asset valuation allowance [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest 3   3   8
Other comprehensive income (loss) before reclassifications     0    
Amounts reclassified out of accumulated other comprehensive income (loss)     0    
Tax effects     (5)    
Other comprehensive income (loss)     (5)    
Unrealized holding gains (losses) on derivatives [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest 8   8   (266)
Other comprehensive income (loss) before reclassifications     374    
Amounts reclassified out of accumulated other comprehensive income (loss)     28    
Tax effects     (128)    
Other comprehensive income (loss)     274    
Prior service credits (costs) [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest (36)   (36)   (40)
Other comprehensive income (loss) before reclassifications     0    
Amounts reclassified out of accumulated other comprehensive income (loss) 2 2 6 6  
Tax effects     (2)    
Other comprehensive income (loss)     4    
Actuarial gains (losses) [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest (1,165)   (1,165)   (876)
Other comprehensive income (loss) before reclassifications     (512)    
Amounts reclassified out of accumulated other comprehensive income (loss) 20 $ 15 46 $ 43  
Tax effects     177    
Other comprehensive income (loss)     (289)    
Foreign currency translation adjustment [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest (516)   (516)   (515)
Other comprehensive income (loss) before reclassifications     (1)    
Amounts reclassified out of accumulated other comprehensive income (loss)     0    
Tax effects     0    
Other comprehensive income (loss)     (1)    
AOCI Including Portion Attributable to Noncontrolling Interest [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 400   $ 400   $ 60