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Stock-Based Compensation - Compensation (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Amounts recognized in the financial statements |  |  |
Stock-based compensation expenses | $ 274 | $ 262 | $ 278
Income tax benefits | (100) | (82) | (141)
Stock-based compensation expenses (benefits), net of tax | 174 | 180 | 137
Cost of sales |  |  |
Amounts recognized in the financial statements |  |  |
Stock-based compensation expenses | 47 | 50 | 47
Selling, general and administrative expenses |  |  |
Amounts recognized in the financial statements |  |  |
Stock-based compensation expenses | 185 | 169 | 185
Research, development and related expenses |  |  |
Amounts recognized in the financial statements |  |  |
Stock-based compensation expenses | $ 42 | $ 43 | $ 46

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