Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Activities - Additional Information (Details)

v3.19.3
Derivative Instruments and Hedging Activities - Additional Information (Details) - USD ($)
3 Months Ended
Sep. 30, 2019
Mar. 31, 2019
Sep. 30, 2018
Jun. 30, 2018
Dec. 31, 2014
Nov. 30, 2014
Oct. 31, 2014
Derivative              
Reclassification adjustments for net gains or (losses) included in net income $ (1,527,000)            
Reclassification adjustments for net gains or losses included in net income     $ 200,000        
Unamortized portion of the fair value of derivative contracts 3,800,000            
Change in net unrealized gains or losses $ (742,000)            
Senior notes              
Derivative              
Face amount   $ 1,200,000,000       $ 2,500,000,000  
Senior notes due November 1, 2024 | Senior notes              
Derivative              
Face amount             $ 1,250,000,000
Stated interest rate 4.65%           4.65%
Treasury lock | Interest expense              
Derivative              
Reclassification adjustments for net gains or (losses) included in net income $ 200,000            
2018 Rate Lock Agreements              
Derivative              
Reclassification adjustments for net gains or (losses) included in net income (300,000)            
Unamortized portion of the fair value of derivative contracts $ 13,000,000.0            
Senior notes | 2018 Rate Lock Agreements              
Derivative              
Change in net unrealized gains or losses   $ (13,600,000)          
Derivatives designated as hedging instruments | Senior notes | Cash flow hedge contracts - foreign currency | Treasury lock | Portion of senior notes              
Derivative              
Derivative, notional amount             $ 1,000,000,000.00
Unrealized gains (losses) on cash flow hedges         $ 7,500,000    
Derivatives designated as hedging instruments | Senior notes | Cash flow hedge contracts - foreign currency | Treasury lock | 2018 Rate lock agreements              
Derivative              
Derivative, notional amount       $ 500,000,000.0