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Pensions and Post-Employment Benefits - Summary of Significant Assumptions Used in the Determination of the Benefit Obligation (Detail) - Defined Benefit Obligation [Member]
Dec. 31, 2021
Dec. 31, 2020
Mexico [member]    
Disclosure of defined benefit plans [line items]    
Discount rates 9.25% 7.80%
Rate of return on plan assets 9.25% 7.80%
Rate of salary increases 4.50% 4.50%
United States [member]    
Disclosure of defined benefit plans [line items]    
Discount rates 2.90% 2.60%
Rate of return on plan assets 2.90% 2.60%
United Kingdom [member]    
Disclosure of defined benefit plans [line items]    
Discount rates 1.90% 1.50%
Rate of return on plan assets 1.90% 1.50%
Rate of salary increases 3.35% 3.00%
Top of range [member] | Other countries [member]    
Disclosure of defined benefit plans [line items]    
Discount rates 9.30% 9.00%
Rate of return on plan assets 9.30% 9.00%
Rate of salary increases 7.30% 6.80%
Bottom of range [member] | Other countries [member]    
Disclosure of defined benefit plans [line items]    
Discount rates 0.40% 0.20%
Rate of return on plan assets 0.40% 0.20%
Rate of salary increases 2.30% 2.30%