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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 | Sep. 30, 2025 USD ($) | Sep. 30, 2025 EUR (€) | Sep. 30, 2025 SGD ($) | Sep. 30, 2025 GBP (£) | Sep. 30, 2025 JPY (¥) | Sep. 30, 2025 CAD ($) | Sep. 30, 2025 INR (₨) | Dec. 31, 2024 USD ($) | Dec. 31, 2024 EUR (€) | Dec. 31, 2024 SGD ($) | Dec. 31, 2024 GBP (£) | Dec. 31, 2024 JPY (¥) | Dec. 31, 2024 CAD ($) | Dec. 31, 2024 INR (₨)
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Contracts to sell USD for GBP |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | $ 597 |  |  | £ 442 |  |  |  | $ 604 |  |  | £ 470 |  |  |
Contracts to sell USD for JPY |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | 24 |  |  |  | ¥ 3,500 |  |  | 29 |  |  |  | ¥ 4,000 |  |
Contracts to sell USD for CAD |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | 38 |  |  |  |  | $ 53 |  | 35 |  |  |  |  | $ 50 |
Contracts to sell USD for SGD |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | 74 |  | $ 95 |  |  |  |  | 45 |  | $ 59 |  |  |  |
Contracts to sell USD for EUR |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | 105 | € 89 |  |  |  |  |  | 0 | € 0 |  |  |  |  |
Contracts to sell USD for INR |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | 20 |  |  |  |  |  | ₨ 1,729 | 23 |  |  |  |  |  | ₨ 1,900
Contracts to sell EUR for USD |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | $ 0 | € 0 |  |  |  |  |  | $ 12 | € 12 |  |  |  |  |

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