v2.4.0.8
Debt - Additional Information (Detail) (USD $)
 12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2012
Debt Instrument [Line Items]      
Debt amount $ 22,600,000,000    
Short-term debt 2,000,000,000 0  
Long-term debt 20,600,000,000 15,600,000,000  
Credit facility 5,000,000,000    
Credit facility, expiration date Nov. 14, 2018    
Credit facility, financial covenant As of June 30, 2014, we were in compliance with the only financial covenant in the credit agreement, which requires us to maintain a coverage ratio of at least three times earnings before interest, taxes, depreciation, and amortization to interest expense, as defined in the credit agreement.    
Credit facility, drawn 0 0  
Long-term debt fair value 21,500,000,000 15,800,000,000  
Cash paid for interest 509,000,000 371,000,000 344,000,000
Unamortized discount 100,000,000 65,000,000  
Commercial paper
      
Debt Instrument [Line Items]      
Commercial paper $ 2,000,000,000    
Commercial paper, weighted average interest rate 0.12%    
Commercial paper | Lower Limit
      
Debt Instrument [Line Items]      
Commercial paper, maturity term 86 days    
Commercial paper | Upper Limit
      
Debt Instrument [Line Items]      
Commercial paper, maturity term 91 days