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Financial Instruments by Category - Summary of Company's Financial Assets Measured at Fair Value (Detail) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of detailed information about financial instruments [line items]      
Financial Assets $ 210 $ 410 $ 392
Investments in financial assets [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 114 74 98
Cash and cash equivalents [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 96 336 294
Public securities [member] | Investments in financial assets [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 114 74 98
Mutual funds [member] | Cash and cash equivalents [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 96 336 294
Level 1 [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 210 410 392
Level 1 [member] | Investments in financial assets [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 114 74 98
Level 1 [member] | Cash and cash equivalents [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 96 336 294
Level 1 [member] | Public securities [member] | Investments in financial assets [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 114 74 98
Level 1 [member] | Mutual funds [member] | Cash and cash equivalents [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 96 336 294
Level 2 [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 0 0 0
Level 2 [member] | Investments in financial assets [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 0 0 0
Level 2 [member] | Cash and cash equivalents [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 0 0 0
Level 2 [member] | Public securities [member] | Investments in financial assets [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 0 0 0
Level 2 [member] | Mutual funds [member] | Cash and cash equivalents [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 0 0 0
Level 3 [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 0 0 0
Level 3 [member] | Investments in financial assets [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 0 0 0
Level 3 [member] | Cash and cash equivalents [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 0 0 0
Level 3 [member] | Public securities [member] | Investments in financial assets [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets 0 0 0
Level 3 [member] | Mutual funds [member] | Cash and cash equivalents [member]      
Disclosure of detailed information about financial instruments [line items]      
Financial Assets $ 0 $ 0 $ 0