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Derivative Instruments And Hedging Activities - Summary of Notional Amounts of Outstanding Cross Currency Swap (Detail) - Cross-currency swap - Net Investment Hedging
€ in Millions, $ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2021
USD ($)
Dec. 31, 2020
USD ($)
Sep. 30, 2021
EUR (€)
Dec. 31, 2020
EUR (€)
3.96%        
Derivative [Line Items]        
Nature of Swap Pay Fixed/Receive Fixed Pay Fixed/Receive Fixed    
3-month U.S. LIBOR        
Derivative [Line Items]        
Nature of Swap Pay Floating/Receive Floating Pay Floating/Receive Floating    
Currency Paid        
Derivative [Line Items]        
Notional Amount | €     € 2,526 € 2,038
Currency Paid | 1.43%        
Derivative [Line Items]        
Notional Amount | €     € 1,060 € 1,079
Weighted Average Fixed Interest Rate 2.15% 1.43% 2.15% 1.43%
Currency Paid | 3-month EURIBOR        
Derivative [Line Items]        
Notional Amount | €     € 1,466 € 959
Weighted Average Floating Interest Rate Based on 3-month EURIBOR Based on 3-month EURIBOR    
Currency Received        
Derivative [Line Items]        
Notional Amount | $ $ 2,900 $ 2,300    
Currency Received | 3.96%        
Derivative [Line Items]        
Notional Amount | $ $ 1,220 $ 1,220    
Weighted Average Fixed Interest Rate 4.45% 3.96% 4.45% 3.96%
Currency Received | 3-month U.S. LIBOR        
Derivative [Line Items]        
Notional Amount | $ $ 1,680 $ 1,080    
Weighted Average Floating Interest Rate Based on 3-month USD LIBOR Based on 3-month USD LIBOR