Business Segments (Segment information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Business Segment Information
Net sales	$ 7,634	$ 7,486
Operating Income	1,646	1,634
Industrial
Business Segment Information
Net sales	2,675	2,558
Operating Income	576	591
Safety and Graphics
Business Segment Information
Net sales	1,417	1,387
Operating Income	335	334
Electronics and Energy
Business Segment Information
Net sales	1,277	1,320
Operating Income	196	234
Health Care
Business Segment Information
Net sales	1,311	1,275
Operating Income	404	401
Consumer
Business Segment Information
Net sales	1,081	1,060
Operating Income	237	237
Corporate and Unallocated
Business Segment Information
Net sales	2	2
Operating Income	(74)	(138)
Elimination of Dual Credit
Business Segment Information
Net sales	(129)	(116)
Operating Income	$ (28)	$ (25)