Business Segments - Segment information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Business Segment Information
Net sales	$ 7,712	$ 8,137	$ 22,976	$ 24,102
Operating Income	1,876	1,901	5,446	5,473
Assets	33,258		33,258		$ 31,269
Depreciation and amortization			1,038	1,058
Business Segments. | Industrial
Business Segment Information
Net sales	2,575	2,772	7,867	8,363
Operating Income	580	616	1,787	1,851
Business Segments. | Safety and Graphics
Business Segment Information
Net sales	1,417	1,448	4,221	4,365
Operating Income	324	340	1,023	1,011
Business Segments. | Electronics and Energy
Business Segment Information
Net sales	1,378	1,500	4,010	4,233
Operating Income	342	338	902	858
Business Segments. | Health Care
Business Segment Information
Net sales	1,346	1,390	4,039	4,180
Operating Income	432	432	1,280	1,293
Business Segments. | Consumer
Business Segment Information
Net sales	1,162	1,177	3,321	3,395
Operating Income	293	272	792	741
Corporate and Unallocated
Business Segment Information
Net sales	2	3		5
Operating Income	(58)	(63)	(232)	(184)
Elimination of Dual Credit
Business Segment Information
Net sales	(168)	(153)	(482)	(439)
Operating Income	$ (37)	$ (34)	$ (106)	$ (97)