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Pensions and Post-Employment Benefits - Summary of Plan Assets Measured at Estimated Fair Value (Detail) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of fair value of plan assets [line items]      
Cash $ 38 $ 33  
Investments in corporate bonds 296 433  
Investments in government bonds 356 478  
Total fixed-income securities 690 944  
Investment in marketable securities 268 489  
Other investments and private funds 250 351  
Total variable-income securities 518 840  
Total plan assets 1,208 1,784 $ 1,694
Level 1 [Member]      
Disclosure of fair value of plan assets [line items]      
Cash 38 33  
Investments in corporate bonds 7 1  
Investments in government bonds 90 85  
Total fixed-income securities 135 119  
Investment in marketable securities 226 380  
Other investments and private funds 91 163  
Total variable-income securities 317 543  
Total plan assets 452 662  
Level 2 [Member]      
Disclosure of fair value of plan assets [line items]      
Investments in corporate bonds 289 432  
Investments in government bonds 266 393  
Total fixed-income securities 555 825  
Investment in marketable securities 42 109  
Other investments and private funds 42 88  
Total variable-income securities 84 197  
Total plan assets 639 1,022  
Level 3 [Member]      
Disclosure of fair value of plan assets [line items]      
Other investments and private funds 117 100  
Total variable-income securities 117 100  
Total plan assets $ 117 $ 100