XML 85 R55.htm IDEA: XBRL DOCUMENT v3.24.1
CONSOLIDATED FINANCIAL STATEMENT DETAILS - Property, plant and equipment (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Feb. 24, 2022
Property, plant and equipment      
Balance at January 1, 2023 $ 7,741.4    
Capitalized interest 108.9 $ 66.5  
Reversals of impairment charges   243.2  
Balance at December 31, 2023 7,963.2 7,741.4  
Assets under construction 831.1 649.6  
Assets not being depreciated $ 2,982.5 $ 2,731.2  
Capitalized interest, weighted average borrowing rate 6.56% 4.78%  
Right of use assets $ 31.7 $ 48.9  
Right-of-use assets for lease arrangements entered 7.9 14.8  
Depreciation for leased right-of-use assets 14.3 20.1  
Great Bear Resources Ltd. ("Great Bear")      
Property, plant and equipment      
Significant pre-development properties 1,492.0 1,402.9 $ 0.3
Cost      
Property, plant and equipment      
Balance at January 1, 2023 19,140.7 21,602.4  
Additions 1,233.1 781.1  
Acquisitions   1,368.4  
Capitalized interest 108.9 66.5  
Disposals (117.9) (4,677.9)  
Change in reclamation and remediation obligations 102.3 (6.4)  
Other 16.9 6.6  
Balance at December 31, 2023 20,484.0 19,140.7  
Accumulated depreciation, depletion, amortization and impairment      
Property, plant and equipment      
Balance at January 1, 2023 (11,399.3) (13,984.7)  
Disposals 102.7 3,738.5  
Depreciation, depletion and amortization (1,224.2) (909.9)  
Impairment charges   (243.2)  
Balance at December 31, 2023 (12,520.8) (11,399.3)  
Land, plant and equipment      
Property, plant and equipment      
Balance at January 1, 2023 3,349.7    
Balance at December 31, 2023 3,486.5 3,349.7  
Assets under construction 542.0 338.4  
Assets not being depreciated 806.6 593.5  
Land, plant and equipment | Cost      
Property, plant and equipment      
Balance at January 1, 2023 9,515.2 10,524.5  
Additions 677.5 463.9  
Acquisitions   0.6  
Capitalized interest 23.3 17.9  
Disposals (110.2) (1,496.0)  
Other 32.8 4.3  
Balance at December 31, 2023 10,138.6 9,515.2  
Land, plant and equipment | Accumulated depreciation, depletion, amortization and impairment      
Property, plant and equipment      
Balance at January 1, 2023 (6,165.5) (6,886.3)  
Disposals 102.7 1,326.6  
Depreciation, depletion and amortization (589.3) (490.7)  
Impairment charges   (115.1)  
Balance at December 31, 2023 (6,652.1) (6,165.5)  
Development and operating properties      
Property, plant and equipment      
Balance at January 1, 2023 2,988.8    
Balance at December 31, 2023 2,984.7 2,988.8  
Assets under construction 267.4 311.2  
Assets not being depreciated 683.9 734.8  
Development and operating properties | Cost      
Property, plant and equipment      
Balance at January 1, 2023 8,222.6 10,560.6  
Additions 532.7 310.1  
Capitalized interest 19.4 18.9  
Disposals (7.7) (2,825.9)  
Change in reclamation and remediation obligations 102.3 (6.4)  
Other (15.9) 3.5  
Balance at December 31, 2023 8,853.4 8,222.6  
Transferred to capitalized development   161.8  
Transfers   161.8  
Development and operating properties | Accumulated depreciation, depletion, amortization and impairment      
Property, plant and equipment      
Balance at January 1, 2023 (5,233.8) (7,098.4)  
Disposals 0.0 2,411.9  
Depreciation, depletion and amortization (634.9) (419.2)  
Impairment charges   (128.1)  
Balance at December 31, 2023 (5,868.7) (5,233.8)  
Pre-development properties      
Property, plant and equipment      
Balance at January 1, 2023 1,402.9    
Balance at December 31, 2023 1,492.0 1,402.9  
Assets under construction 21.7    
Assets not being depreciated 1,492.0 1,402.9  
Exploration and evaluation expenses, capitalised 89.2 36.8  
Exploration and evaluation expenses 68.5 87.0  
Pre-development properties | Cost      
Property, plant and equipment      
Balance at January 1, 2023 1,402.9 517.3  
Additions 22.9 7.1  
Acquisitions   1,367.8  
Capitalized interest 66.2 29.7  
Disposals 0.0 (356.0)  
Other 0.0 (1.2)  
Balance at December 31, 2023 1,492.0 1,402.9  
Transferred to capitalized development   (161.8)  
Transfers   (161.8)  
Pre-development properties | Accumulated depreciation, depletion, amortization and impairment      
Property, plant and equipment      
Balance at January 1, 2023 0.0    
Disposals 0.0    
Depreciation, depletion and amortization 0.0    
Balance at December 31, 2023 0.0 0.0  
Exploration and evaluation assets      
Property, plant and equipment      
Balance at January 1, 2023 1,476.3    
Capitalized interest 66.3 29.2  
Balance at December 31, 2023 1,569.7 1,476.3  
Exploration and evaluation expenses, capitalised 93.4 44.8  
Exploration and evaluation expenses $ 158.9 $ 135.9