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Derivative Instruments and Hedging Activities (Detail) - USD ($)
$ in Millions
1 Months Ended
Jun. 30, 2018
Mar. 31, 2020
Dec. 31, 2019
Interest Rate Swap      
Derivative      
Derivative, term of contract (in years) 5 years    
Derivative, contract notional amount $ 500 $ 475 $ 482
Foreign Exchange Contract      
Derivative      
Derivative, contract notional amount   199 150
Net contract notional amount of foreign exchange forward contracts   $ 58 $ 41