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Equity Plans - Share Based Awards (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Sep. 03, 2020
Aug. 29, 2019
Aug. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares available for future awards (in shares) 90    
Restricted stock awards      
Restricted Stock Awards activity      
Number of Shares - Outstanding (in shares) 16    
Number of Shares - Granted (in shares) 8 9 4
Number of Shares - Restrictions lapsed (in shares) (6)    
Number of Shares - Canceled (in shares) (1)    
Number of Shares - Outstanding (in shares) 17 16  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Weighted Average Grant Date Fair Value Per Share - Outstanding (in dollars per share) $ 34.72    
Weighted Average Grant Date Fair Value Per Share - Granted (in dollars per share) 46.44 $ 41.11 $ 42.48
Weighted Average Grant Date Fair Value Per Share - Restrictions lapsed (in dollars per share) 29.34    
Weighted Average Grant Date Fair Value Per Share - Canceled (in dollars per share) 40.59    
Weighted Average Grant Date Fair Value Per Share - Outstanding (in dollars per share) $ 42.13 $ 34.72  
Restricted stock awards granted (in shares) 8 9 4
Weighted-average grant-date fair values per share (in dollars per share) $ 46.44 $ 41.11 $ 42.48
Aggregate vesting-date fair value of shares vested $ 294 $ 248 $ 259
Performance and Market-based Restricted Stock Awards      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Restricted award vesting period 3 years    
Performance and Market-based Restricted Stock Awards | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Restricted award achievement potential, percentage 0.00%    
Performance and Market-based Restricted Stock Awards | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Restricted award achievement potential, percentage 200.00%    
Service-based Restricted Stock Awards      
Restricted Stock Awards activity      
Number of Shares - Outstanding (in shares) 15    
Service-based Restricted Stock Awards | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Annual vesting rights, percentage 25.00%    
Service-based Restricted Stock Awards | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Annual vesting rights, percentage 33.00%    
Employee Stock Purchase Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares available for future awards (in shares) 26    
Period from grant date until stock options expire or ESPP program period (in years or months) 6 months    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Weighted Average Grant Date Fair Value Per Share - Granted (in dollars per share) $ 14.24 $ 11.60 $ 14.55
Weighted-average grant-date fair values per share (in dollars per share) $ 14.24 $ 11.60 $ 14.55
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]      
ESPP maximum payroll deduction percentage (in hundredths) 10.00%    
ESPP percentage purchase price of common stock (in hundredths) 85.00%    
ESPP shares purchased (in shares) 3 3  
ESPP value of shares purchased $ 118 $ 95  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Fair Value Assumptions, Method Used Black-Scholes    
Average expected life (in years) 6 months 6 months 6 months
Weighted-average expected volatility (in hundredths) 45.00% 45.00% 43.00%
Weighted-average risk-free interest rate (in thousandths) 0.80% 2.20% 2.20%
Expected dividend yield 0.00% 0.00% 0.00%
Employee Stock Option      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Period from grant date until stock options expire or ESPP program period (in years or months) 8 years    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Number of options outstanding (in shares) 7    
Number of shares exercised (in shares) 5    
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]      
Total intrinsic value for option exercised $ 130 $ 108 $ 446
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Fair Value Assumptions, Method Used Black-Scholes    
Stock options granted (in shares)   0 2
Weighted-average grant-date fair values per share (in dollars per share)   $ 19.50 $ 18.65
Average expected life (in years)   5 years 4 months 24 days 5 years 6 months
Weighted-average expected volatility (in hundredths)   44.00% 44.00%
Weighted-average risk-free interest rate (in thousandths)   2.90% 2.20%
Expected dividend yield   0.00% 0.00%
Employee Stock Option | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Annual vesting rights, percentage 25.00%    
Employee Stock Option | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Annual vesting rights, percentage 33.00%