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Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax Contingency [Line Items]      
Effective income tax, percent 12.60% 18.20% 18.70%
Interest expense and penalties included in other income (expense), net $ (23) $ (35) $ (9)
Net operating loss carryforward recognized 283 41 $ 50
Accrued interest and penalties 150 133  
Operating loss carryforwards 602    
Operating loss carryforwards, subject to full valuation allowance 192    
Unrecognized tax benefits, interest on income tax expense 445 $ 456  
Wright      
Income Tax Contingency [Line Items]      
Operating loss carryforwards 183    
Operating loss carryforwards, subject to full valuation allowance 106    
United States      
Income Tax Contingency [Line Items]      
Operating loss carryforwards 403    
Foreign Tax Authority      
Income Tax Contingency [Line Items]      
Operating loss carryforwards 198    
Tax credit carryforward, amount 104    
Tax credit carryforward, valuation allowance $ 83