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Property, Machinery and Equipment, Net and Assets For The Right-Of-Use, Net - Disclosure of Net Change in Property, Machinery and Equipment (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period $ 10,170 $ 10,565 $ 11,232
Capital expenditures 849 564 737
Stripping costs 18 18 22
Total capital expenditures 867 582 759
Disposals (106) (63) (96)
Reclassifications (44) (18) (402)
Business combinations   11  
Depreciation and depletion for the period (724) (748) (633)
Impairment losses (43) (306) (64)
Foreign currency translation effects 82 147 (231)
Net book value at end of period 10,202 10,170 10,565
Cost [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period 20,296 19,708 20,642
Net book value at end of period 20,322 20,296 19,708
Accumulated depreciation and depletion [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period (10,126) (9,143) (9,410)
Net book value at end of period (10,120) (10,126) (9,143)
Land and mineral reserves [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period 3,564 3,638  
Capital expenditures 81 47  
Stripping costs 18 18  
Total capital expenditures 99 65  
Disposals (20) (26)  
Reclassifications (4) (10)  
Depreciation and depletion for the period (108) (134)  
Impairment losses (11) (87)  
Foreign currency translation effects 55 118  
Net book value at end of period 3,575 3,564 3,638
Land and mineral reserves [member] | Cost [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period 4,741 4,606  
Net book value at end of period 4,801 4,741 4,606
Land and mineral reserves [member] | Accumulated depreciation and depletion [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period (1,177) (968)  
Net book value at end of period (1,226) (1,177) (968)
Building [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period 964 1,048  
Capital expenditures 159 35  
Total capital expenditures 159 35  
Disposals (6) (7)  
Reclassifications (8) (2)  
Depreciation and depletion for the period (74) (99)  
Impairment losses (9) (54)  
Foreign currency translation effects 12 43  
Net book value at end of period 1,038 964 1,048
Building [member] | Cost [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period 2,438 2,374  
Net book value at end of period 2,532 2,438 2,374
Building [member] | Accumulated depreciation and depletion [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period (1,474) (1,326)  
Net book value at end of period (1,494) (1,474) (1,326)
Machinery and equipment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period 4,454 4,670  
Capital expenditures 609 482  
Total capital expenditures 609 482  
Disposals (80) (30)  
Reclassifications (29) (6)  
Business combinations   11  
Depreciation and depletion for the period (542) (515)  
Impairment losses (15) (165)  
Foreign currency translation effects (70) 7  
Net book value at end of period 4,327 4,454 4,670
Machinery and equipment [member] | Cost [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period 11,929 11,519  
Net book value at end of period 11,727 11,929 11,519
Machinery and equipment [member] | Accumulated depreciation and depletion [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period (7,475) (6,849)  
Net book value at end of period (7,400) (7,475) (6,849)
Construction in progress [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period 1,188 1,209  
Reclassifications (3)    
Impairment losses (8)    
Foreign currency translation effects 85 (21)  
Net book value at end of period 1,262 1,188 1,209
Construction in progress [member] | Cost [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value at beginning of period 1,188 1,209  
Net book value at end of period $ 1,262 $ 1,188 $ 1,209