Derivative Instruments And Hedging Activities - Summary of Notional Amounts of Outstanding Cross Currency Swap (Detail) € in Millions, ₨ in Millions, ¥ in Millions, £ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)	Mar. 31, 2026 EUR (€)	Mar. 31, 2026 HKD ($)	Mar. 31, 2026 SGD ($)	Mar. 31, 2026 GBP (£)	Mar. 31, 2026 JPY (¥)	Mar. 31, 2026 CAD ($)	Mar. 31, 2026 INR (₨)	Mar. 31, 2026 AUD ($)	Dec. 31, 2025 EUR (€)	Dec. 31, 2025 HKD ($)	Dec. 31, 2025 SGD ($)	Dec. 31, 2025 GBP (£)	Dec. 31, 2025 JPY (¥)	Dec. 31, 2025 CAD ($)	Dec. 31, 2025 INR (₨)	Dec. 31, 2025 AUD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 EUR (€)
Contracts to sell USD for GBP | Not Designated as Accounting Hedges
Derivative [Line Items]
Notional Amount	$ 1,205	$ 693				£ 898								£ 522
Contracts to sell USD for JPY | Not Designated as Accounting Hedges
Derivative [Line Items]
Notional Amount	18	17					¥ 2,900								¥ 2,700
Contracts to sell USD for CAD | Not Designated as Accounting Hedges
Derivative [Line Items]
Notional Amount	60	39						$ 81								$ 53
Contracts to sell USD for SGD | Not Designated as Accounting Hedges
Derivative [Line Items]
Notional Amount	96	39			$ 122								$ 50
Contracts to sell USD for EUR | Not Designated as Accounting Hedges
Derivative [Line Items]
Notional Amount	376	107	€ 324								€ 91
Contracts to sell USD for INR | Not Designated as Accounting Hedges
Derivative [Line Items]
Notional Amount	26	26							₨ 2,481								₨ 2,400
Contracts to sell EUR for USD | Not Designated as Accounting Hedges
Derivative [Line Items]
Notional Amount	154	25	133								€ 21
Contracts to sell USD for AUD | Not Designated as Accounting Hedges
Derivative [Line Items]
Notional Amount	$ 3	$ 0								$ 4								$ 0
Currency Paid | Cross currency swaps | Net Investment Hedging | Fixed Pay Weighted Average Interest Rate
Derivative [Line Items]
Notional Amount | €			€ 2,197																	€ 1,997
Weighted Average Interest Rate	2.63%		2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%									2.48%	2.48%
Currency Paid | Cross currency swaps | Net Investment Hedging | Based on ESTR
Derivative [Line Items]
Notional Amount | €			€ 1,688																	€ 1,688
Floating Interest Rate	Based on ESTR	Based on ESTR
Currency Paid | Currency Swap Two | Net Investment Hedging | Fixed Pay Weighted Average Interest Rate
Derivative [Line Items]
Notional Amount				$ 3,907								$ 3,907
Currency Paid | Currency Swap Three | Net Investment Hedging | Fixed Pay Weighted Average Interest Rate
Derivative [Line Items]
Notional Amount					$ 389								$ 389
Currency Received | Cross currency swaps | Net Investment Hedging | Fixed Received Weighted Average Interest Rate
Derivative [Line Items]
Notional Amount	$ 2,353																		$ 2,114
Weighted Average Interest Rate	4.11%		4.11%	4.11%	4.11%	4.11%	4.11%	4.11%	4.11%	4.11%									3.98%	3.98%
Currency Received | Cross currency swaps | Net Investment Hedging | Based on SOFR
Derivative [Line Items]
Notional Amount	$ 1,750																		$ 1,750
Floating Interest Rate	Based on SOFR	Based on SOFR
Currency Received | Currency Swap Two | Net Investment Hedging | Fixed Received Weighted Average Interest Rate
Derivative [Line Items]
Notional Amount	$ 500	$ 500
Weighted Average Interest Rate	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%	0.64%
Currency Received | Currency Swap Three | Net Investment Hedging | Fixed Received Weighted Average Interest Rate
Derivative [Line Items]
Notional Amount				$ 2,350								$ 2,350
Weighted Average Interest Rate	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%	0.62%