Quarterly report pursuant to Section 13 or 15(d)

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

v3.2.0.727
Other Comprehensive Income (Loss), Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 27, 2015
Jun. 28, 2014
Jun. 27, 2015
Jun. 28, 2014
Dec. 27, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Accumulated Other Comprehensive Income (Loss), Total $ 645   $ 645   $ 666
Other comprehensive income (loss) before reclassifications     (179)    
Amounts reclassified out of accumulated other comprehensive income (loss)     211    
Tax effects     (53)    
Other comprehensive income (loss) 577 $ (36) (21) $ (123)  
Unrealized holding gains (losses) on available-for-sale investments [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Accumulated Other Comprehensive Income (Loss), Unrealized Holding Gains (Losses) On Available-for-Sale Investments 2,545   2,545   2,459
Other comprehensive income (loss) before reclassifications     207    
Amounts reclassified out of accumulated other comprehensive income (loss)     (74)    
Tax effects     (47)    
Other comprehensive income (loss)     86    
Deferred tax asset valuation allowance [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Accumulated Other Comprehensive Income (Loss), Deferred Tax Asset Valuation Allowance 18   18   26
Other comprehensive income (loss) before reclassifications     0    
Amounts reclassified out of accumulated other comprehensive income (loss)     0    
Tax effects     (8)    
Other comprehensive income (loss)     (8)    
Unrealized holding gains (losses) on derivatives [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Accumulated Other Comprehensive Income (Loss), Unrealized Holding Gains (Losses) On Derivatives (376)   (376)   (423)
Other comprehensive income (loss) before reclassifications     (200)    
Amounts reclassified out of accumulated other comprehensive income (loss)     253    
Tax effects     (6)    
Other comprehensive income (loss)     47    
Prior service credits (costs) [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Accumulated Other Comprehensive Income (Loss), Prior Service Credits (Costs) (43)   (43)   (47)
Other comprehensive income (loss) before reclassifications     0    
Amounts reclassified out of accumulated other comprehensive income (loss)     4    
Tax effects     0    
Other comprehensive income (loss)     4    
Actuarial gains (losses) [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Accumulated Other Comprehensive Income (Loss), Actuarial Gains (Losses) (985)   (985)   (1,004)
Other comprehensive income (loss) before reclassifications     0    
Amounts reclassified out of accumulated other comprehensive income (loss)     28    
Tax effects     (9)    
Other comprehensive income (loss)     19    
Foreign currency translation adjustment [Member]          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment $ (514)   (514)   $ (345)
Other comprehensive income (loss) before reclassifications     (186)    
Amounts reclassified out of accumulated other comprehensive income (loss)     0    
Tax effects     17    
Other comprehensive income (loss)     $ (169)