Financial Instruments and Fair Value Measurements - Summary of Activity in Interest Rate Contracts (Detail) - Interest Rate Contracts [Member] - Cash Flow Hedges [Member] - Designated As Hedging Instrument [Member] - USD ($)	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Derivative [Line Items]
Notional amounts at January 1	$ 280,000,000	$ 1,250,000,000
New contracts	464,000,000	0
Matured, expired or settled contracts	(319,000,000)	(721,000,000)
Notional amounts at March 31	425,000,000	529,000,000
EUR
Derivative [Line Items]
Notional amounts at January 1		700,000,000
New contracts		0
Matured, expired or settled contracts		(171,000,000)
Notional amounts at March 31		529,000,000
USD
Derivative [Line Items]
Notional amounts at January 1	280,000,000	550,000,000
New contracts	325,000,000	0
Matured, expired or settled contracts	(180,000,000)	(550,000,000)
Notional amounts at March 31	425,000,000	$ 0
CAD
Derivative [Line Items]
Notional amounts at January 1	0
New contracts	139,000,000
Matured, expired or settled contracts	(139,000,000)
Notional amounts at March 31	$ 0