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Equity - Capped Calls (Details) - USD ($)
$ / shares in Units, shares in Millions
12 Months Ended
Sep. 03, 2015
Aug. 28, 2014
Aug. 29, 2013
Aug. 30, 2012
Sep. 01, 2011
May. 29, 2014
Option Indexed to Issuer's Equity [Line Items]            
Option indexed to issuer's equity settlement proceeds $ 0          
Call Option [Member] | Convertible Debt [Member] | 2031A and 2031B convertible senior notes [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Treasury Stock, Number of Shares Held 3          
Treasury Stock, Shares, Retired   3        
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option indexed to issuer's equity, shares (in shares) 172          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | Minimum [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option indexed to issuer's equity settlement proceeds [1] $ 0          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | Maximum [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option indexed to issuer's equity settlement proceeds [1] $ 814,000,000          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2031A and 2031B convertible senior notes [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Cash paid for capped call transactions         $ 57,000,000  
Option indexed to issuer's equity, strike price (in dollars per share) $ 9.50          
Option indexed to issuer's equity, shares (in shares) 18          
Option indexed to issuer's equity settlement shares received 3         3
Capped call fair value settlement, dollar value of shares received $ 50,000,000         $ 86,000,000
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2031A and 2031B convertible senior notes [Member] | Minimum [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option Indexed to Issuer's Equity, capped ceiling $ 13.17          
Option indexed to issuer's equity settlement proceeds [1] $ 0          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2031A and 2031B convertible senior notes [Member] | Maximum [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option Indexed to Issuer's Equity, capped ceiling $ 13.17          
Option indexed to issuer's equity settlement proceeds [1] $ 67,000,000          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2032C and 2032D convertible senior notes [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Cash paid for capped call transactions       $ 103,000,000    
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2033E and 2033F convertible senior notes [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Cash paid for capped call transactions     $ 48,000,000      
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2032C convertible senior notes [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option indexed to issuer's equity, strike price (in dollars per share) $ 9.80          
Option indexed to issuer's equity, shares (in shares) 56          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2032C convertible senior notes [Member] | Minimum [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option Indexed to Issuer's Equity, capped ceiling $ 14.26          
Option indexed to issuer's equity settlement proceeds [1] $ 0          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2032C convertible senior notes [Member] | Maximum [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option Indexed to Issuer's Equity, capped ceiling $ 15.69          
Option indexed to issuer's equity settlement proceeds [1] $ 307,000,000          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2032D convertible senior notes [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option indexed to issuer's equity, strike price (in dollars per share) $ 10.16          
Option indexed to issuer's equity, shares (in shares) 44          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2032D convertible senior notes [Member] | Minimum [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option Indexed to Issuer's Equity, capped ceiling $ 14.62          
Option indexed to issuer's equity settlement proceeds [1] $ 0          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2032D convertible senior notes [Member] | Maximum [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option Indexed to Issuer's Equity, capped ceiling $ 16.04          
Option indexed to issuer's equity settlement proceeds [1] $ 244,000,000          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2033E convertible senior notes [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option indexed to issuer's equity, strike price (in dollars per share) $ 10.93          
Option indexed to issuer's equity, shares (in shares) 27          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2033E convertible senior notes [Member] | Minimum [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option Indexed to Issuer's Equity, capped ceiling $ 14.51          
Option indexed to issuer's equity settlement proceeds [1] $ 0          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2033E convertible senior notes [Member] | Maximum [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option Indexed to Issuer's Equity, capped ceiling $ 14.51          
Option indexed to issuer's equity settlement proceeds [1] $ 98,000,000          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2033F convertible senior note [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option indexed to issuer's equity, strike price (in dollars per share) $ 10.93          
Option indexed to issuer's equity, shares (in shares) 27          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2033F convertible senior note [Member] | Minimum [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option Indexed to Issuer's Equity, capped ceiling $ 14.51          
Option indexed to issuer's equity settlement proceeds [1] $ 0          
Call Option [Member] | Purchased options [Member] | Convertible Debt [Member] | 2033F convertible senior note [Member] | Maximum [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Option Indexed to Issuer's Equity, capped ceiling $ 14.51          
Option indexed to issuer's equity settlement proceeds [1] $ 98,000,000          
[1] Settlement in cash on the respective expiration dates would result in us receiving an amount ranging from zero, if the market price per share of our common stock is at or below the low strike price, to the maximum amount if the market price per share of our common stock is at or above the high cap price. If share settlement were elected, the number of shares received would be determined by the value of the capped calls at the time of settlement divided by the share price on the settlement date. Settlement of the capped calls prior to the expiration dates may be for an amount less than the maximum value at expiration.