v3.26.1
Financial Instruments - Summary of Financial Assets and Liabilities (Detail) - USD ($)
$ in Millions
Jun. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Disclosure of Financial Assets and Liabilities [Line Items]            
Cash and cash equivalents $ 577 $ 400 $ 511 $ 664 $ 1,371 $ 1,968
Trade and other receivables 1,127   1,143      
Other financial assets - current 116   94      
Other financial assets - non-current 469   466      
Current indebtedness (1,618)   (795)      
Trade payables (170)   (147)      
Accruals (723)   (826)      
Other financial liabilities - current [2] (318) [1]   (108)      
Long-term indebtedness (1,323)   (1,328)      
Other financial liabilities - non-current [3] (206)   (210)      
Total (2,069)   (1,200)      
Assets/ (Liabilities) at Amortized Cost [member]            
Disclosure of Financial Assets and Liabilities [Line Items]            
Cash and cash equivalents 285   276      
Trade and other receivables 1,127   1,143      
Other financial assets - current 31   10      
Other financial assets - non-current 8   10      
Current indebtedness (1,618)   (795)      
Trade payables (170)   (147)      
Accruals (723)   (826)      
Other financial liabilities - current [2] (308) [1]   (68)      
Long-term indebtedness (1,323)   (1,328)      
Other financial liabilities - non-current [3] (183)   (194)      
Total (2,874)   (1,919)      
Assets/ (Liabilities) at Fair Value through Earnings [member]            
Disclosure of Financial Assets and Liabilities [Line Items]            
Cash and cash equivalents 292   235      
Trade and other receivables 0   0      
Other financial assets - current 85   84      
Other financial assets - non-current 277   288      
Current indebtedness 0   0      
Trade payables 0   0      
Accruals 0   0      
Other financial liabilities - current (10)   (40)      
Long-term indebtedness 0   0      
Other financial liabilities - non-current 0   0      
Total 644   567      
Assets at Fair Value through Other Comprehensive Income or Loss [member]            
Disclosure of Financial Assets and Liabilities [Line Items]            
Cash and cash equivalents 0          
Trade and other receivables 0   0      
Other financial assets - current 0   0      
Other financial assets - non-current 184   168      
Current indebtedness 0   0      
Trade payables 0   0      
Accruals 0   0      
Other financial liabilities - current 0   0      
Long-term indebtedness 0   0      
Other financial liabilities - non-current 0   0      
Total 184   168      
Derivatives Used for Hedging [member]            
Disclosure of Financial Assets and Liabilities [Line Items]            
Cash and cash equivalents 0   0      
Trade and other receivables 0   0      
Other financial assets - current 0   0      
Other financial assets - non-current 0   0      
Current indebtedness 0   0      
Trade payables 0   0      
Accruals 0   0      
Other financial liabilities - current 0   0      
Long-term indebtedness 0   0      
Other financial liabilities - non-current (23)   (16)      
Total $ (23)   $ (16)      
[1] Includes a commitment to repurchase up to $238 million of shares related to the Company’s pre-defined plan with its broker to repurchase the Company's shares during its internal trading blackout period. See note 14.
[2] Includes lease liabilities of $60 million (2025 - $59 million).
[3] Includes lease liabilities of $181 million (2025 - $190 million).