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Debt (Additional Information) (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 03, 2017
May 18, 2017
Aug. 28, 2016
Feb. 17, 2015
Dec. 07, 2012
Feb. 20, 2007
Debt Instrument [Line Items]            
Long-term Debt $ 6,659   $ 5,161      
May 2017 Senior Notes [Member]            
Debt Instrument [Line Items]            
Debt Instrument, Face Amount   $ 3,800        
February 2015 Senior Notes [Member]            
Debt Instrument [Line Items]            
Debt Instrument, Face Amount       $ 1,000    
December 2012 Senior Notes [Member]            
Debt Instrument [Line Items]            
Debt Instrument, Face Amount         $ 3,500  
5.5% Senior Notes due March 2017            
Debt Instrument [Line Items]            
Debt Instrument, Face Amount           $ 1,100
Debt instrument, interest rate, stated percentage 5.50%          
Debt instrument, maturity date Mar. 15, 2017          
Senior Notes One Point One Two Five Percent Due December Fifteen Twenty Seventeen [Member]            
Debt Instrument [Line Items]            
Debt Instrument, Face Amount         $ 1,100  
Debt instrument, interest rate, stated percentage 1.125%          
Debt instrument, maturity date Dec. 15, 2017          
1.7% Senior Notes due December 2019            
Debt Instrument [Line Items]            
Debt instrument, interest rate, stated percentage 1.70%          
Debt instrument, maturity date Dec. 15, 2019          
Debt instrument, frequency of periodic payment Interest is payable semi-annually          
Debt Instrument, Redemption Price, Percentage 100.00%          
Redemption Price Certain Events         101.00%  
1.75% Senior Notes due February 2020            
Debt Instrument [Line Items]            
Debt instrument, interest rate, stated percentage 1.75%          
Debt instrument, maturity date Feb. 15, 2020          
Debt instrument, frequency of periodic payment Interest is payable semi-annually          
Debt Instrument, Redemption Price, Percentage 100.00%          
Redemption Price Certain Events       101.00%    
2.15% Senior Notes due May 2021            
Debt Instrument [Line Items]            
Debt instrument, interest rate, stated percentage 2.15%          
Debt instrument, maturity date May 18, 2021          
Debt instrument, frequency of periodic payment Interest is payable semi-annually          
Debt Instrument, Redemption Price, Percentage 100.00%          
Redemption Price Certain Events   101.00%        
2.25% Senior Notes due February 2022            
Debt Instrument [Line Items]            
Debt instrument, interest rate, stated percentage 2.25%          
Debt instrument, maturity date Feb. 15, 2022          
Debt instrument, frequency of periodic payment Interest is payable semi-annually          
Debt Instrument, Redemption Price, Percentage 100.00%          
Redemption Price Certain Events       101.00%    
2.30% Senior Notes due May 2022            
Debt Instrument [Line Items]            
Debt instrument, interest rate, stated percentage 2.30%          
Debt instrument, maturity date May 18, 2022          
Debt instrument, frequency of periodic payment Interest is payable semi-annually          
Debt Instrument, Redemption Price, Percentage 100.00%          
Redemption Price Certain Events   101.00%        
2.75% Senior Notes due May 2024            
Debt Instrument [Line Items]            
Debt instrument, interest rate, stated percentage 2.75%          
Debt instrument, maturity date May 18, 2024          
Debt instrument, frequency of periodic payment Interest is payable semi-annually          
Debt Instrument, Redemption Price, Percentage 100.00%          
Redemption Price Certain Events   101.00%        
3.00% Senior Notes due May 2027            
Debt Instrument [Line Items]            
Debt instrument, interest rate, stated percentage 3.00%          
Debt instrument, maturity date May 18, 2027          
Debt instrument, frequency of periodic payment Interest is payable semi-annually          
Debt Instrument, Redemption Price, Percentage 100.00%          
Redemption Price Certain Events   101.00%