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Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Income Tax Contingency [Line Items]      
Effective income tax, percent 13.80% 12.10% 12.60%
Interest expense and penalties included in other income (expense), net $ (1) $ 71 $ (23)
Net operating loss carryforward recognized 189 56 $ 283
Accrued interest and penalties 67 66  
Tax credit carryforward, amount 208    
Tax credit carryforward, valuation allowance 79    
Undistributed earnings of foreign subsidiaries 11,000    
Repatriation of foreign earnings reversed   71  
Unrecognized tax benefits, interest on income tax expense 248 $ 289  
Tax settlement amount 162    
Tax settlement, release of accrued interest 50    
Federal      
Income Tax Contingency [Line Items]      
Operating loss carryforwards 254    
Deferred tax assets, operating loss carryforwards 53    
Operating loss carryforwards, subject to full valuation allowance 2    
State      
Income Tax Contingency [Line Items]      
Operating loss carryforwards 3,006    
Deferred tax assets, operating loss carryforwards 74    
Operating loss carryforwards, subject to full valuation allowance 47    
International      
Income Tax Contingency [Line Items]      
Operating loss carryforwards 259    
Deferred tax assets, operating loss carryforwards 66    
Operating loss carryforwards, subject to full valuation allowance $ 63