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Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Disclosure [Line Items]      
Deferred tax assets valuation allowance, reversed $ 22 [1] $ (45) $ (18)
Effective Tax Rate (61.30%) 16.70% 16.90%
United States Federal Statutory Rate 21.00% 21.00% 21.00%
Recognition of research and development credits $ 59 $ 67 $ 128
Unrecognized tax benefits 32 24  
Deferred tax assets valuation allowance 765 1,204  
Deferred tax liabilities, undistributed earnings from its foreign investments 0 11  
Taxable temporary difference in respect of unremitted earnings 261 137  
Deferred income tax liabilities 402 202  
Unrecognized Tax Benefit, interest expense 1 1 0
Unrecognized Tax Benefit, Liability for accrued interest 1 1  
Unremitted Earnings Permanently Reinvested [Member]      
Income Tax Disclosure [Line Items]      
Deferred income tax liabilities 13 $ 7  
Research Tax Credit Carryforward [Member]      
Income Tax Disclosure [Line Items]      
Recognition of research and development credits     $ 136
United States [Member]      
Income Tax Disclosure [Line Items]      
United States Federal Statutory Rate   21.00% 21.00%
Unrecognized tax benefits 54 $ 59  
United States [Member]      
Income Tax Disclosure [Line Items]      
Deferred income tax liabilities 402 202  
United States [Member] | State Losses [Member]      
Income Tax Disclosure [Line Items]      
Deferred tax assets valuation allowance 29 29  
Canada [Member]      
Income Tax Disclosure [Line Items]      
Deferred income tax liabilities 0 0  
Canada [Member] | Tax Credits [Member]      
Income Tax Disclosure [Line Items]      
Deferred tax assets valuation allowance 22 0  
Canada [Member] | Net Operating Losses [Member]      
Income Tax Disclosure [Line Items]      
Deferred tax assets valuation allowance $ 714 $ 1,175  
[1] The worldwide valuation allowance reversal of $498 million primarily resulted from the commercial restructure in Canada.