Financial Instruments and Fair Value Measurements - Foreign Currency Contracts Activity (Detail) - Forwards [Member] - Net Investment Hedges [Member] - Designated As Hedging Instrument [Member]	6 Months Ended
	Jun. 30, 2025 USD ($) Derivative	Jun. 30, 2024 USD ($) Derivative
Derivative [Line Items]
Notional amounts at January 1	$ 595,000,000	$ 948,000,000
New contracts	490,000,000	444,000,000
Matured, expired or settled contracts	(343,000,000)	(798,000,000)
Notional amounts at June 30	742,000,000	594,000,000
CAD
Derivative [Line Items]
Notional amounts at January 1	163,000,000	516,000,000
New contracts	200,000,000	47,000,000
Matured, expired or settled contracts	(163,000,000)	(399,000,000)
Notional amounts at June 30	$ 200,000,000	$ 164,000,000
Weighted average forward rate at June 30	1.36	1.36
Active contracts at June 30 | Derivative	2	2
GBP
Derivative [Line Items]
Notional amounts at January 1	$ 432,000,000	$ 432,000,000
New contracts	290,000,000	397,000,000
Matured, expired or settled contracts	(180,000,000)	(399,000,000)
Notional amounts at June 30	$ 542,000,000	$ 430,000,000
Weighted average forward rate at June 30	1.3	1.25
Active contracts at June 30 | Derivative	5	4