Segment and Geographic Area Information (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information
Net Sales to External Customers	$ 5,356	$ 5,079	$ 5,057	$ 4,755	$ 5,072	$ 4,805	$ 4,933	$ 4,847	$ 20,247	$ 19,657	$ 19,050
Long-term Assets	26,014				23,706				26,014	23,706	35,912
United States
Segment Reporting Information
Net Sales to External Customers									6,123	6,208	6,242
Long-term Assets	7,103				7,884				7,103	7,884	15,244
Japan
Segment Reporting Information
Net Sales to External Customers									968	1,042	1,221
Long-term Assets	786				902				786	902	1,169
Germany
Segment Reporting Information
Net Sales to External Customers									978	963	837
Long-term Assets	887				1,040				887	1,040	6,173
The Netherlands
Segment Reporting Information
Net Sales to External Customers									788	960	1,107
Long-term Assets	569				560				569	560	532
China
Segment Reporting Information
Net Sales to External Customers									1,321	1,083	859
Long-term Assets	366				356				366	356	259
India
Segment Reporting Information
Net Sales to External Customers									1,009	922	919
Long-term Assets	2,987				3,080				2,987	3,080	3,467
Brazil
Segment Reporting Information
Net Sales to External Customers									508	470	448
Long-term Assets	197				216				197	216	200
Switzerland
Segment Reporting Information
Net Sales to External Customers									707	792	693
Long-term Assets	2,067				1,117				2,067	1,117	1,214
Canada
Segment Reporting Information
Net Sales to External Customers									462	493	471
Long-term Assets	196				368				196	368	352
Italy
Segment Reporting Information
Net Sales to External Customers									436	457	412
Long-term Assets	83				100				83	100	222
France
Segment Reporting Information
Net Sales to External Customers									488	480	453
Long-term Assets	302				213				302	213	220
Russia
Segment Reporting Information
Net Sales to External Customers									536	525	485
Long-term Assets	159				30				159	30	37
Spain
Segment Reporting Information
Net Sales to External Customers									310	276	283
Long-term Assets	281				326				281	326	314
United Kingdom
Segment Reporting Information
Net Sales to External Customers									447	395	396
Long-term Assets	1,301				1,380				1,301	1,380	1,345
All Other Countries
Segment Reporting Information
Net Sales to External Customers									5,166	4,591	4,224
Long-term Assets	$ 8,730				$ 6,134				$ 8,730	$ 6,134	$ 5,164