Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Activities - Additional Information (Details)

v3.4.0.3
Derivative Instruments and Hedging Activities - Additional Information (Details) - USD ($)
 3 Months Ended 9 Months Ended
Mar. 31, 2016
Dec. 31, 2014
Mar. 31, 2016
Mar. 31, 2015
Jun. 30, 2015
Nov. 30, 2014
Oct. 31, 2014
Derivative              
Unrealized gains recognized within accumulated other comprehensive income, gross unamortized $ 2,579,000   $ 2,579,000   $ 4,553,000    
Senior notes              
Derivative              
Debt instrument, face amount           $ 2,500,000,000.0  
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 (as a percent) 4.65% [1]   4.65% [1]   4.65% [1]   4.65%
Not designated as hedging instrument | Senior notes | Treasury lock | 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 | 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          
Cash flow hedging | Derivatives designated as hedging instruments | Senior notes | Treasury lock | Portion of senior notes | Interest expense              
Derivative              
Unrealized gains recognized within accumulated other comprehensive income, gross unamortized $ 6,500,000   $ 6,500,000        
Recognition of gain amortized in accumulated other comprehensive income (loss) $ 200,000   $ 600,000        
Cash flow hedging | Derivatives designated as hedging instruments | Senior notes | Forward contracts | Portion of senior notes              
Derivative              
Gain (loss) on contract termination       $ 7,500,000      
[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%.