Stock-Based Compensation - Compensation (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Amounts recognized in the financial statements
Stock-based compensation programs expense	$ 262	$ 278	$ 302
Income tax benefits	(82)	(141)	(154)
Stock-based compensation expenses (benefits), net of tax	180	137	148
Cost of sales
Amounts recognized in the financial statements
Stock-based compensation programs expense	50	47	48
Selling, general and administrative expenses
Amounts recognized in the financial statements
Stock-based compensation programs expense	169	185	207
Research, development and related expenses
Amounts recognized in the financial statements
Stock-based compensation programs expense	$ 43	$ 46	$ 47

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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