Annual report pursuant to Section 13 and 15(d)

Debt - Senior Notes (Details)

v3.2.0.727
Debt - Senior Notes (Details) - USD ($)
 3 Months Ended 12 Months Ended
Nov. 19, 2014
Dec. 31, 2014
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Nov. 30, 2014
Oct. 31, 2014
Debt Instrument [Line Items]              
Cash dividends declared per share (including Special Cash dividend of 16.50) (in dollars per share)     $ 18.5 $ 1.8 $ 1.6    
Cash dividends declared     $ 3,083,059,000 $ 298,871,000 $ 265,893,000    
Long-term debt, gross     3,211,250,000 750,000,000      
Unamortized discount     $ 3,723,000 2,081,000      
Senior Notes              
Debt Instrument [Line Items]              
Face amount           $ 2,500,000,000.00  
Unamortized discount           $ 4,000,000  
Frequency of periodic payment     semi-annually        
Redemption price, percentage     101.00%        
Debt instrument, fair value disclosure     $ 2,520,000,000 893,700,000      
Senior Notes | Senior Notes Due May 1, 2018              
Debt Instrument [Line Items]              
Long-term debt, gross     $ 0 $ 750,000,000      
Special Cash Dividend              
Debt Instrument [Line Items]              
Cash dividends declared per share (including Special Cash dividend of 16.50) (in dollars per share) $ 16.50 $ 16.50          
Cash dividends declared   $ 2,760,000,000          
Moody's, Ba1 Rating | Senior Notes              
Debt Instrument [Line Items]              
Decrease in credit rating, interest rate adjustment     0.25%        
Moody's, Ba2 Rating | Senior Notes              
Debt Instrument [Line Items]              
Decrease in credit rating, interest rate adjustment     0.50%        
Moody's, Ba3 Rating | Senior Notes              
Debt Instrument [Line Items]              
Decrease in credit rating, interest rate adjustment     0.75%        
Moody's, B1 Rating | Senior Notes              
Debt Instrument [Line Items]              
Decrease in credit rating, interest rate adjustment     1.00%        
Standard & Poor's, BBplus Rating | Senior Notes              
Debt Instrument [Line Items]              
Decrease in credit rating, interest rate adjustment     0.25%        
Standard & Poor's, BB Rating | Senior Notes              
Debt Instrument [Line Items]              
Decrease in credit rating, interest rate adjustment     0.50%        
Standard & Poor's, BB- Rating | Senior Notes              
Debt Instrument [Line Items]              
Decrease in credit rating, interest rate adjustment     0.75%        
Standard & Poor's, Bplus Rating | Senior Notes              
Debt Instrument [Line Items]              
Decrease in credit rating, interest rate adjustment     1.00%        
Treasury Lock | Cash Flow Hedging | Forward Contracts | Designated as Hedging Instrument | Senior Notes | Portion of Senior Notes              
Debt Instrument [Line Items]              
10-year treasury rate derivative, notional amount             $ 1,000,000,000.00