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Goodwill - Summary of Weighted Average Cost of Capital (Detail) - US Dollar [member]
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Colombia [member]    
Disclosure of reconciliation of changes in goodwill [line items]    
Weighted average cost of capital 6.00% 6.00%
Rest of Middle Americas [member]    
Disclosure of reconciliation of changes in goodwill [line items]    
Weighted average cost of capital 10.00% 9.00%
South Africa [member]    
Disclosure of reconciliation of changes in goodwill [line items]    
Weighted average cost of capital 8.00% 7.00%
Rest of Africa [member]    
Disclosure of reconciliation of changes in goodwill [line items]    
Weighted average cost of capital 10.00% 10.00%
Rest Of Asia Pacific [Member]    
Disclosure of reconciliation of changes in goodwill [line items]    
Weighted average cost of capital 6.00% 6.00%