v3.25.4
Goodwill and other intangibles - Narrative (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Disclosure of detailed information about intangible assets [line items]    
Impairment loss recognised in profit or loss, goodwill   $ 70
U.S. Lumber CGU    
Disclosure of detailed information about intangible assets [line items]    
Impairment loss recognised in profit or loss, goodwill $ 409  
Recoverable amount of impairment $ 73  
Minimum    
Disclosure of detailed information about intangible assets [line items]    
Product information, pre-tax discount rates 0.099 0.108
Maximum    
Disclosure of detailed information about intangible assets [line items]    
Product information, pre-tax discount rates   0.128
Customer-related intangible assets [member] | Minimum    
Disclosure of detailed information about intangible assets [line items]    
Useful life measured as period of time, intangible assets other than goodwill 3 years  
Customer-related intangible assets [member] | Maximum    
Disclosure of detailed information about intangible assets [line items]    
Useful life measured as period of time, intangible assets other than goodwill 10 years  
Other intangible assets [member]    
Disclosure of detailed information about intangible assets [line items]    
Useful life measured as period of time, intangible assets other than goodwill 5 years