Annual report pursuant to Section 13 and 15(d)

Employee Equity Incentive Plans (Detail)

v3.8.0.1
Employee Equity Incentive Plans (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Dec. 26, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]      
Market-Based Restricted Stock Units Performance Period (In Years) 3 years    
Share-based Compensation $ 1,358 $ 1,444 $ 1,305
Tax Benefit from Compensation Expense $ 520 616 533
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]      
Award Requisite Service Period 4 years    
RSUs Vested in Period, Total Fair Value $ 1,600 1,600 1,500
RSUs Aggregate Intrinsic Value, Vested 1,100 $ 1,300 $ 1,100
Compensation Cost Not yet Recognized $ 2,000    
Compensation Cost Not yet Recognized, Period for Recognition 1 year 3 months    
Estimated Values And Weighted Average Assumptions [Abstract]      
Estimated values (in dollars per share) $ 35.30 $ 29.76 $ 31.63
Risk-free interest rate 1.40% 0.90% 0.60%
Dividend yield 2.90% 3.30% 2.90%
Restricted Stock Units Activity [Roll Forward]      
Number of RSUs outstanding, beginning balance 106.8    
Number of RSUs granted 45.2    
Number of RSUs assumed In acquisition 1.1    
Number of RSUs vested (40.5)    
Number of RSUs forfeited (12.2)    
Number of RSUs outstanding, ending balance 100.4 106.8  
Number of RSUs expected to vest 96.5    
Weighted average grant date fair value, RSUs outstanding $ 32.36 $ 28.99  
Weighted average grant date fair value, RSUs granted 35.30    
Weighted average grant date fair value, RSUs assumed in acquisition 34.90    
Weighted average grant date fair value, RSUs vested 27.52    
Weighted average grant date fair value, RSUs forfeited 30.08    
Weighted average grant date fair value, RSUs expected to vest $ 32.36    
Employee Stock Option [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]      
Expiration Period 7 years    
Market-Based Restricted Stock Units (OSUs) [Member]      
Estimated Values And Weighted Average Assumptions [Abstract]      
Volatility (percent) 23.00% 23.00% 27.00%
Restricted Stock Units Activity [Roll Forward]      
Number of RSUs outstanding, ending balance 9.2    
Market-Based Restricted Stock Units (OSUs) [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]      
Vesting range (percent) 0.00%    
Market-Based Restricted Stock Units (OSUs) [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]      
Vesting range (percent) 200.00%    
Stock Purchase Plan RIghts [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]      
Compensation Cost Not yet Recognized $ 13    
Compensation Cost Not yet Recognized, Period for Recognition 2 months    
Stock Purchase Plan Shares Issued in Period 14.5 16.5 15.8
Employee Purchases, Amount $ 432 $ 415 $ 421
Estimated Values And Weighted Average Assumptions [Abstract]      
Estimated values (in dollars per share) $ 7.20 $ 6.70 $ 6.56
Risk-free interest rate 1.00% 0.50% 0.10%
Dividend yield 2.90% 3.20% 3.10%
Volatility (percent) 19.00% 22.00% 25.00%
Expected life (in years) 6 months 6 months 6 months
2006 Equity Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized 33.0    
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]      
Number of Shares Authorized 786.0    
Number of Shares Available for Grant 215.0    
2006 Stock Purchase Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]      
Number of Shares Authorized 373.0    
Number of Shares Available for Grant 150.0    
Stock Purchase Plan, Purchase Price of Common Stock, Percent 85.00%    
Inventories [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount $ 49 $ 44 $ 49