Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Activities - Additional Information (Details)

v3.3.1.900
Derivative Instruments and Hedging Activities - Additional Information (Details) - USD ($)
 3 Months Ended 6 Months Ended
Dec. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Jun. 30, 2015
Nov. 30, 2014
Oct. 31, 2014
Derivative            
Unrealized gains recognized within accumulated other comprehensive income, gross unamortized $ 3,662,000 $ 3,662,000   $ 4,553,000    
Senior notes            
Derivative            
Debt instrument, face amount         $ 2,500,000,000  
Fixed-rate 4.650% Senior notes due on November 1, 2024 | Senior notes            
Derivative            
Debt instrument, face amount           $ 1,250,000,000
Stated interest rate 4.65% [1] 4.65% [1]   4.65% [1]   4.65%
Not designated as hedging instrument | Senior notes | Treasury lock | Forward contracts | 2018 Senior Notes            
Derivative            
Notional amount of derivative         $ 750,000,000  
Gain (loss) on contract termination     $ 1,200,000      
Cash flow hedging | Derivatives designated as hedging instruments            
Derivative            
Derivative maximum maturity, cash flow hedges (in months)   18 months        
Cash flow hedging | Derivatives designated as hedging instruments | Senior notes | Treasury lock | Forward contracts | Portion of senior notes            
Derivative            
Notional amount of derivative           $ 1,000,000,000.00
Unrealized gains recognized within accumulated other comprehensive income, gross unamortized     7,500,000      
Gain (loss) on contract termination     $ 7,500,000      
Cash flow hedging | Derivatives designated as hedging instruments | Senior notes | Treasury lock | Forward contracts | Portion of senior notes | Interest expense            
Derivative            
Unrealized gains recognized within accumulated other comprehensive income, gross unamortized $ 6,700,000 $ 6,700,000        
Recognition of gain amortized in accumulated other comprehensive income (loss) $ 200,000 $ 400,000        
[1] The effective interest rate disclosed above for this series of Senior Notes excludes the impact of the treasury rate lock hedge discussed below. The effective interest rate including the impact of the treasury rate lock hedge was 4.626%.