Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
Other Comprehensive Income (Loss), Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Dec. 30, 2017
Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated Other Comprehensive Income (Loss), Net of Tax $ (1,089)   $ (1,089)   $ 862  
Other comprehensive income (loss) before reclassifications     (156)      
Amounts reclassified out of accumulated other comprehensive income (40) $ (255) (49) $ (495)    
Tax effects     44      
Other comprehensive income (loss) (406) 311 (161) 1,068    
Unrealized holding gains (losses) on available-for-sale investments [Member]            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive income (loss) 0   0   1,745 $ 0
Other comprehensive income (loss) before reclassifications     0      
Amounts reclassified out of accumulated other comprehensive income     0      
Tax effects     0      
Other comprehensive income (loss)     0      
Unrealized holding gains (losses) on derivatives [Member]            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive income (loss) (44)   (44)   106 130
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification         24  
Other comprehensive income (loss) before reclassifications     (134)      
Amounts reclassified out of accumulated other comprehensive income     (87)      
Tax effects     47      
Other comprehensive income (loss)     (174)      
Actuarial gains (losses) [Member]            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive income (loss) (1,002)   (1,002)   (963) (1,028)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification         (65)  
Other comprehensive income (loss) before reclassifications     4      
Amounts reclassified out of accumulated other comprehensive income (13) $ 4 32 $ 28    
Tax effects     (10)      
Other comprehensive income (loss)     26      
Foreign currency translation adjustment [Member]            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive income (loss) (43)   (43)   (26) (30)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification         (4)  
Other comprehensive income (loss) before reclassifications     (26)      
Amounts reclassified out of accumulated other comprehensive income     6      
Tax effects     7      
Other comprehensive income (loss)     (13)      
Accumulated other comprehensive income (loss) [Member]            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive income (loss) $ (1,089)   $ (1,089)   862 $ (928)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification         (1,790)  
Accounting Standards Update 2016-01 [Member]            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated Other Comprehensive Income (Loss), Net of Tax         $ (1,745)