Unaudited Condensed Consolidated Statements of Income (Stock-based Compensation Expense) (USD $) In Millions	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Stock-Based Compensation Expense included
Cost of product revenue	$ 6	$ 5	$ 13	$ 12
Research and development	97	84	199	173
Selling, general and administrative	$ 33	$ 30	$ 69	$ 61

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