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Stock-Based Compensation - Compensation (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Amounts recognized in the financial statements    
Stock-based compensation programs expense $ 131 $ 120
Income tax benefits (51) (39)
Stock-based compensation expenses (benefits), net of tax 80 81
Cost of sales    
Amounts recognized in the financial statements    
Stock-based compensation programs expense 22 22
Selling, general and administrative expenses    
Amounts recognized in the financial statements    
Stock-based compensation programs expense 84 73
Research, development and related expenses    
Amounts recognized in the financial statements    
Stock-based compensation programs expense $ 25 $ 25