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Derivative Instruments and Hedging Activities - Summary of Notional Amounts for Hedged Items, Designated as Hedge Accounting (Detail) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Liabilities Derivatives - Interest Rate and Cross Currency Swaps [Member] | Designated as Hedging Instrument [Member] | Net Investment Hedge [Member]    
Derivative [Line Items]    
Notional amounts of hedge $ 0 $ 1,000