Annual report pursuant to Section 13 and 15(d)

Equity and Long-Term Incentive Compensation Plans - Dividends (Details)

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Equity and Long-Term Incentive Compensation Plans - Dividends (Details) - USD ($)
 3 Months Ended 12 Months Ended
Aug. 06, 2015
Jul. 14, 2015
May. 07, 2015
Nov. 19, 2014
Dec. 31, 2014
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Dividends Payable [Line Items]                
Cash dividends declared per share (including Special Cash dividend of 16.50) (in dollars per share)           $ 18.5 $ 1.8 $ 1.6
Payments of dividends           $ 3,041,055,000 $ 298,871,000 $ 265,893,000
Dividends Payable           42,002,000 0 0
Cash dividends declared           3,083,059,000 298,871,000 265,893,000
Retained earnings (accumulated deficit)           (12,362,000) 2,479,113,000  
Retained Earnings                
Dividends Payable [Line Items]                
Cash dividends declared           2,275,668,000 298,871,000 $ 265,893,000
Regular Cash Dividend                
Dividends Payable [Line Items]                
Cash dividends declared per share (including Special Cash dividend of 16.50) (in dollars per share)     $ 0.50          
Regular Cash Dividend | Subsequent Event                
Dividends Payable [Line Items]                
Cash dividends declared per share (including Special Cash dividend of 16.50) (in dollars per share) $ 0.52 $ 0.52            
Regular Cash Dividend | Additional Paid-in Capital                
Dividends Payable [Line Items]                
Payments of dividends           324,800,000    
Regular Cash Dividend | Retained Earnings                
Dividends Payable [Line Items]                
Payments of dividends             298,871,000  
Special Cash Dividend                
Dividends Payable [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      
Retained earnings (accumulated deficit)       $ 0        
Special Cash Dividend | Additional Paid-in Capital                
Dividends Payable [Line Items]                
Cash dividends declared       646,500,000        
Special Cash Dividend | Retained Earnings                
Dividends Payable [Line Items]                
Cash dividends declared       $ 2,100,000,000        
Restricted Stock Unit, Performance-Based And Service Based                
Dividends Payable [Line Items]                
Dividends Payable           42,002,000    
Restricted Stock Unit, Performance-Based And Service Based | Regular Cash Dividend                
Dividends Payable [Line Items]                
Dividends Payable           900,000 $ 0  
Restricted Stock Units (RSUs) | Special Cash Dividend                
Dividends Payable [Line Items]                
Dividends Payable           $ 41,100,000