XML 59 R67.htm IDEA: XBRL DOCUMENT v3.20.1
Short-term Borrowings and Long-term Debt (Narrative) (Details) - USD ($)
$ in Millions
9 Months Ended
May 01, 2020
Apr. 26, 2020
Apr. 28, 2019
Jul. 28, 2019
Debt Instrument [Line Items]        
Extinguishment of Debt, Amount   $ 1,200    
Payment for Debt Extinguishment, Net   1,765    
Debt Instrument, Repurchased Face Amount   1,691    
Loss on extinguishment of debt   (75) $ 0  
Long-term borrowings   1,000 $ 0  
Interest Expense [Member]        
Debt Instrument [Line Items]        
Loss on extinguishment of debt   (75)    
Gain (Loss) on Extinguishment of Debt, before Write off of Debt Issuance Cost   (65)    
4.250% notes, due 2021        
Debt Instrument [Line Items]        
Repayments of Debt   $ 500    
Debt Instrument, Interest Rate, Stated Percentage   4.25%    
Long-term Debt, Gross   $ 0   $ 500
Debt Instrument, Maturity Date   Apr. 15, 2021    
3.650% notes, due 2023        
Debt Instrument [Line Items]        
Repayments of Debt   $ 634    
Debt Instrument, Interest Rate, Stated Percentage   3.65%    
Long-term Debt, Gross   $ 566   1,200
Debt Instrument, Maturity Date   Mar. 15, 2023    
3.800% notes, due 2042        
Debt Instrument [Line Items]        
Repayments of Debt   $ 237    
Debt Instrument, Interest Rate, Stated Percentage   3.80%    
Long-term Debt, Gross   $ 163   400
Debt Instrument, Maturity Date   Aug. 02, 2042    
3.300% notes, due 2021        
Debt Instrument [Line Items]        
Repayments of Debt   $ 329    
Debt Instrument, Interest Rate, Stated Percentage   3.30%    
Long-term Debt, Gross   $ 321   650
Debt Instrument, Maturity Date   Mar. 15, 2021    
Line of Credit, Current | Subsequent Event [Member]        
Debt Instrument [Line Items]        
Repayments of Debt $ 300      
2.375% notes due 2030        
Debt Instrument [Line Items]        
Debt Instrument, Interest Rate, Stated Percentage   2.375%    
Long-term Debt, Gross   $ 500   0
Debt Instrument, Redemption Price, Percentage   101.00%    
Debt Instrument, Maturity Date   Apr. 24, 2030    
3.125% notes, due 2050        
Debt Instrument [Line Items]        
Debt Instrument, Interest Rate, Stated Percentage   3.125%    
Long-term Debt, Gross   $ 500   $ 0
Debt Instrument, Redemption Price, Percentage   101.00%    
Debt Instrument, Maturity Date   Apr. 24, 2050