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 ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative [Line Items]
Notional amounts at January 1	$ 597,000,000	$ 165,000,000	$ 415,000,000
New contracts	3,413,000,000	1,692,000,000	0
Matured, expired or settled contracts	(2,760,000,000)	(1,260,000,000)	(250,000,000)
Notional amounts at December 31	1,250,000,000	597,000,000	165,000,000
EUR
Derivative [Line Items]
Notional amounts at January 1	447,000,000	165,000,000	165,000,000
New contracts	1,113,000,000	1,004,000,000	0
Matured, expired or settled contracts	(860,000,000)	(722,000,000)	0
Notional amounts at December 31	700,000,000	447,000,000	165,000,000
CAD
Derivative [Line Items]
Notional amounts at January 1	0	0
New contracts		184,000,000
Matured, expired or settled contracts		(184,000,000)
Notional amounts at December 31		0	0
USD
Derivative [Line Items]
Notional amounts at January 1	150,000,000	0	250,000,000
New contracts	2,300,000,000	400,000,000	0
Matured, expired or settled contracts	(1,900,000,000)	(250,000,000)	(250,000,000)
Notional amounts at December 31	550,000,000	150,000,000	0
JPY
Derivative [Line Items]
Notional amounts at January 1	$ 0	0
New contracts		104,000,000
Matured, expired or settled contracts		(104,000,000)
Notional amounts at December 31		$ 0	$ 0