v3.26.1
Income Taxes - Accumulated Other Comprehensive Income/(Loss) (Net of Tax) (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2020
Income Before Income Taxes And Income Tax Expense Benefit [Line Items]        
Israel statutory tax rate for income taxes (Percent)   23.00% 23.00% 23.00%
Change in valuation allowance, Other (Amount) [1]   $ (105)    
Income (loss) before income taxes $ 1,223 $ (1,284) $ (624)  
Statutory tax rate in Israel   23.00% 23.00% 23.00%
Changes in unrecognized tax benefits (Amount)     $ 14  
Total Effective Tax Rate (14.80%)      
Tax benefits arising from net deferred taxes, resulting from intellectual property related integration plans, including carryforward losses   $ (87) (272)  
Theoretical provision for income taxes   (295) (144)  
The parent company and its israeli subsidiaries - settlement with the israeli tax authorities   514    
Increase (decrease) in other uncertain tax positions - net   171    
Mainly nondeductible items and prior year tax   16    
Impairments that did not have a corresponding tax effect, non-deductible interest and other items   463 372  
Adjustments to valuation allowances on deferred tax assets [1]   (105)    
Increase (decrease) in other uncertain tax positions - net   (1) 23  
Effective consolidated income taxes $ (180) $ 676 $ (7)  
Israel [Member]        
Income Before Income Taxes And Income Tax Expense Benefit [Line Items]        
Israel statutory tax rate for income taxes (Amount) $ 281      
Israel statutory tax rate for income taxes (Percent) 23.00%      
Statutory tax rate in Israel 23.00%      
Canada [Member]        
Income Before Income Taxes And Income Tax Expense Benefit [Line Items]        
Change in valuation allowance, Other (Amount) $ 42      
Change in valuation allowance, Other (Percent) 3.40%      
Other (Amount) $ (11)      
Other (Percent) (0.90%)      
Adjustments to valuation allowances on deferred tax assets $ 42      
Germany [Member]        
Income Before Income Taxes And Income Tax Expense Benefit [Line Items]        
Other (Amount) $ (1)      
Other (Percent) (0.10%)      
Statutory tax rate difference (Amount) $ 48      
Statutory tax rate difference (Percent) (4.00%)      
State and local income taxes (Amount) [2] $ (77)      
State and local income taxes (Percent) [2] (6.30%)      
Ireland [Member]        
Income Before Income Taxes And Income Tax Expense Benefit [Line Items]        
Change in valuation allowance, Other (Amount) $ 40      
Change in valuation allowance, Other (Percent) 3.30%      
Other (Amount) $ (4)      
Other (Percent) (0.30%)      
Adjustments to valuation allowances on deferred tax assets $ 40      
Malta [Member]        
Income Before Income Taxes And Income Tax Expense Benefit [Line Items]        
Other (Amount) $ 6      
Other (Percent) 0.50%      
Statutory tax rate difference (Amount) $ 34      
Statutory tax rate difference (Percent) 2.80%      
Reduced rate due to imputation system (Amount) $ (89)      
Reduced rate due to imputation system (Percent) (7.30%)      
Mexico [Member]        
Income Before Income Taxes And Income Tax Expense Benefit [Line Items]        
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential (Amount) $ 17      
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential (Percent) 1.40%      
Netherlands [Member]        
Income Before Income Taxes And Income Tax Expense Benefit [Line Items]        
Change in valuation allowance, Other (Amount) $ 138      
Change in valuation allowance, Other (Percent) 11.30%      
Other (Amount) $ (1)      
Other (Percent) (0.10%)      
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent 3.40%      
Impairments that did not have a corresponding tax effect, non-deductible interest and other items $ 41      
Adjustments to valuation allowances on deferred tax assets 138      
Switzerland [Member]        
Income Before Income Taxes And Income Tax Expense Benefit [Line Items]        
Change in valuation allowance, Other (Amount) $ (33)      
Change in valuation allowance, Other (Percent) (2.70%)      
Other (Amount) $ 4      
Other (Percent) 0.40%      
Statutory tax rate difference (Amount) $ (162)      
Statutory tax rate difference (Percent) 13.20%      
Exchange rate movements (Amount) $ (37)      
Exchange rate movements (Percent) (3.00%)      
Adjustments to valuation allowances on deferred tax assets $ (33)      
United Kingdom [Member]        
Income Before Income Taxes And Income Tax Expense Benefit [Line Items]        
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential (Amount) $ 15      
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential (Percent) 1.20%      
United States [Member]        
Income Before Income Taxes And Income Tax Expense Benefit [Line Items]        
Change in valuation allowance, Other (Amount) $ (668)      
Change in valuation allowance, Other (Percent) (54.60%)      
R&D tax credit (Amount) $ (24)      
R&D tax credit (Percent) (2.00%)      
Base Erosion and Anti-Abuse Tax (BEAT) (Amount) $ 25      
Base Erosion and Anti-Abuse Tax (BEAT) (Percent) 2.00%      
Non-deductible items (Percent) 1.60%      
Non-deductible items (Amount) $ 19      
Other adjustments (Amount) $ (7)      
Other adjustments (Percent) (0.60%)      
Adjustments to valuation allowances on deferred tax assets $ (668)      
Other countries [Member]        
Income Before Income Taxes And Income Tax Expense Benefit [Line Items]        
Change in valuation allowance, Other (Amount) $ 187      
Change in valuation allowance, Other (Percent) 15.30%      
Other adjustments (Amount) $ 6      
Other adjustments (Percent) 0.50%      
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential (Amount) $ 39      
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential (Percent) 3.30%      
Changes in unrecognized tax benefits (Amount) $ (60)      
Changes in unrecognized tax benefits (Percent) (4.90%)      
Indexation of income tax payable to tax authorities (Percent) 4.00%      
Indexation of income tax payable to tax authorities (Amount) $ 48      
Adjustments to valuation allowances on deferred tax assets $ 187      
[1] Mainly related to deduction of interest expenses in the United States.
[2] State taxes in Ulm in 2025 made up the majority (greater than 50%) of the tax effect in this category.