Derivative Instruments And Hedging Activities - Summary of Notional Amounts of Outstanding Foreign Exchange Forwards (Detail) - Not Designated as Accounting Hedges € in Millions, ₨ in Millions, ¥ in Millions, £ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions	Sep. 30, 2023 USD ($)	Sep. 30, 2023 EUR (€)	Sep. 30, 2023 GBP (£)	Sep. 30, 2023 JPY (¥)	Sep. 30, 2023 CAD ($)	Sep. 30, 2023 SGD ($)	Sep. 30, 2023 INR (₨)	Sep. 30, 2023 AUD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 EUR (€)	Dec. 31, 2022 GBP (£)	Dec. 31, 2022 JPY (¥)	Dec. 31, 2022 CAD ($)	Dec. 31, 2022 SGD ($)	Dec. 31, 2022 INR (₨)	Dec. 31, 2022 AUD ($)
Contracts to sell USD for GBP
Derivative [Line Items]
Notional Amount	$ 486		£ 378						$ 170		£ 146
Contracts to sell USD for Japanese yen
Derivative [Line Items]
Notional Amount	15			¥ 2,000					24			¥ 3,500
Contracts to sell USD for Canadian dollars
Derivative [Line Items]
Notional Amount	146				$ 195				87				$ 120
Contracts to sell USD for Singapore dollars
Derivative [Line Items]
Notional Amount	61					$ 82			50					$ 70
Contracts to sell USD for euros
Derivative [Line Items]
Notional Amount	98	€ 90							116	€ 115
Contracts to sell USD for Indian rupee
Derivative [Line Items]
Notional Amount	23						₨ 1,900		19						₨ 1,600
Contracts to sell euros for USD
Derivative [Line Items]
Notional Amount	0	€ 0							89	€ 85
Contracts to sell AUD for USD
Derivative [Line Items]
Notional Amount	$ 8							$ 5	$ 0							$ 0