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Pensions and Post-Employment Benefits - Schedule of Reconciliations of the Actuarial Benefits Obligations, Pension Plan Assets, And Liabilities Recognized in the Balance Sheet (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of defined benefit plans [line items]      
Projected benefit obligation at beginning of the period $ 3,033 $ 2,738  
Service cost 12 12 $ 12
Interest cost 67 75  
Actuarial (gains) losses (140) 276  
Additions through business combinations 0 1  
Settlements and curtailments (2) (1) (3)
Plan amendments 0 (1)  
Benefits paid (139) (146)  
Foreign currency translation (48) 79  
Projected benefit obligation at end of the period 2,783 3,033 2,738
Fair value of plan assets at beginning of the period 1,694 1,600  
Return on plan assets 36 42  
Actuarial gains (losses) 123 77  
Employer contributions 85 81  
Benefits paid (139) (146)  
Foreign currency translation (15) 40  
Fair value of plan assets at end of the period 1,784 1,694 1,600
Net projected liability in the statement of financial position 999 1,339  
Pension defined benefit plans [member]      
Disclosure of defined benefit plans [line items]      
Projected benefit obligation at beginning of the period 2,928 2,651  
Service cost 9 10 10
Interest cost 62 70  
Actuarial (gains) losses (134) 258  
Additions through business combinations 0 1  
Settlements and curtailments (1) 0 (3)
Plan amendments 0 (2)  
Benefits paid (132) (140)  
Foreign currency translation (47) 80  
Projected benefit obligation at end of the period 2,685 2,928 2,651
Fair value of plan assets at beginning of the period 1,693 1,599  
Return on plan assets 36 42  
Actuarial gains (losses) 123 77  
Employer contributions 78 75  
Benefits paid (132) (140)  
Foreign currency translation (15) 40  
Fair value of plan assets at end of the period 1,783 1,693 1,599
Net projected liability in the statement of financial position 902 1,235  
Other Benefits Plans [Member]      
Disclosure of defined benefit plans [line items]      
Projected benefit obligation at beginning of the period 105 87  
Service cost 3 2 2
Interest cost 5 5  
Actuarial (gains) losses (6) 18  
Settlements and curtailments (1) (1)  
Plan amendments 0 1  
Benefits paid (7) (6)  
Foreign currency translation (1) (1)  
Projected benefit obligation at end of the period 98 105 87
Fair value of plan assets at beginning of the period 1 1  
Employer contributions 7 6  
Benefits paid (7) (6)  
Fair value of plan assets at end of the period 1 1 $ 1
Net projected liability in the statement of financial position $ 97 $ 104