Financial Instruments and Fair Value Measurements - Foreign Currency Contracts Activity (Detail) - Forwards [Member] - Net Investment Hedges [Member] - Designated As Hedging Instrument [Member]	3 Months Ended
	Mar. 31, 2025 USD ($) Derivative	Mar. 31, 2024 USD ($) Derivative
Derivative [Line Items]
Notional amounts at January 1	$ 595,000,000	$ 948,000,000
New contracts	0	139,000,000
Matured, expired or settled contracts	(163,000,000)	(493,000,000)
Notional amounts at March 31	432,000,000	594,000,000
CAD
Derivative [Line Items]
Notional amounts at January 1	163,000,000	516,000,000
New contracts	0	47,000,000
Matured, expired or settled contracts	(163,000,000)	(400,000,000)
Notional amounts at March 31	$ 0	$ 163,000,000
Weighted average forward rate at March 31	0	1.36
Active contracts at March 31 | Derivative	0	2
GBP
Derivative [Line Items]
Notional amounts at January 1	$ 432,000,000	$ 432,000,000
New contracts	0	92,000,000
Matured, expired or settled contracts	0	(93,000,000)
Notional amounts at March 31	$ 432,000,000	$ 431,000,000
Weighted average forward rate at March 31	1.26	1.25
Active contracts at March 31 | Derivative	4	4