Stock-Based Compensation (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Amounts recognized in the financial statements
Stock-based compensation programs expense	$ 47	$ 36	$ 197	$ 181
Income tax benefits	(14)	(12)	(59)	(56)
Stock-based compensation expenses, net of tax	33	24	138	125
Cost of Sales
Amounts recognized in the financial statements
Stock-based compensation programs expense	5	6	23	23
Selling, general and administrative expenses
Amounts recognized in the financial statements
Stock-based compensation programs expense	36	25	149	134
Research, development and related expenses
Amounts recognized in the financial statements
Stock-based compensation programs expense	$ 6	$ 5	$ 25	$ 24