Stock-Based Compensation - Compensation (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Amounts recognized in the financial statements
Stock-based compensation expenses	$ 43	$ 44	$ 227	$ 216
Income tax benefits	(13)	(13)	(89)	(67)
Stock-based compensation expenses (benefits), net of tax	30	31	138	149
Cost of sales
Amounts recognized in the financial statements
Stock-based compensation expenses	8	9	39	41
Selling, general and administrative expenses
Amounts recognized in the financial statements
Stock-based compensation expenses	30	30	151	138
Research, development and related expenses
Amounts recognized in the financial statements
Stock-based compensation expenses	$ 5	$ 5	$ 37	$ 37

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

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