Annual report pursuant to Section 13 and 15(d)

Employee Equity Incentive Plans (Detail)

v3.19.3.a.u2
Employee Equity Incentive Plans (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
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 Payment Arrangement, Noncash Expense $ 1,705 $ 1,546 $ 1,358
Tax Benefit from Compensation Expense $ 359 399 520
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 $ 1,900 2,000 1,600
RSUs Aggregate Intrinsic Value, Vested 1,300 $ 1,200 $ 1,100
Compensation Cost Not yet Recognized $ 2,100    
Compensation Cost Not yet Recognized, Period for Recognition 1 year 3 months 18 days    
Estimated Values And Weighted Average Assumptions [Abstract]      
Estimated values (in dollars per share) $ 48.06 $ 48.95 $ 35.30
Risk-free interest rate 2.30% 2.40% 1.40%
Dividend yield 2.50% 2.40% 2.90%
Restricted Stock Units Activity [Roll Forward]      
Number of RSUs outstanding, beginning balance 89.9    
Number of RSUs granted 37.6    
Number of RSUs vested (35.2)    
Number of RSUs forfeited (8.2)    
Number of RSUs outstanding, ending balance 84.1 89.9  
Number of RSUs expected to vest 79.8    
Weighted average grant date fair value, RSUs outstanding $ 43.86 $ 39.07  
Weighted average grant date fair value, RSUs granted   48.06  
Weighted average grant date fair value, RSUs vested   36.51  
Weighted average grant date fair value, RSUs forfeited   42.20  
Weighted average grant date fair value, RSUs expected to vest   $ 43.72  
Share-based Payment Arrangement, Option [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]      
Expiration Period 10 years    
Market-Based Restricted Stock Units (OSUs) [Member]      
Estimated Values And Weighted Average Assumptions [Abstract]      
Volatility (percent) 25.00% 22.00% 23.00%
Restricted Stock Units Activity [Roll Forward]      
Number of RSUs outstanding, ending balance 13.0    
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 $ 42    
Compensation Cost Not yet Recognized, Period for Recognition 2 months    
Stock Purchase Plan Shares Issued in Period 17.1 13.7 14.5
Employee Purchases, Amount $ 688 $ 468 $ 432
2006 Equity Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]      
Number of Shares Authorized 866.0    
Number of Shares Available for Grant 228.0    
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 119.0    
Stock Purchase Plan, Purchase Price of Common Stock, Percent 85.00%