Stock-Based Compensation (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Amounts recognized in the financial statements
Stock-based compensation programs expense	$ 280	$ 240	$ 223
Income tax benefits	(79)	(71)	(67)
Stock-based compensation expenses, net of tax	201	169	156
Cost of Sales
Amounts recognized in the financial statements
Stock-based compensation programs expense	47	27	27
Selling, general and administrative expenses
Amounts recognized in the financial statements
Stock-based compensation programs expense	192	183	167
Research, development and related expenses
Amounts recognized in the financial statements
Stock-based compensation programs expense	$ 41	$ 30	$ 29