Business Segments - Segment information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Business Segment Information
Net sales	$ 7,662	$ 7,686	$ 15,071	$ 15,264
Operating Income	1,866	1,840	3,654	3,570
Assets	33,235		33,235		$ 32,718
Depreciation and amortization			722	683
Business Segments. | Industrial
Business Segment Information
Net sales	2,631	2,632	5,207	5,288
Operating Income	615	608	1,232	1,204
Business Segments. | Safety and Graphics
Business Segment Information
Net sales	1,499	1,432	2,911	2,804
Operating Income	411	364	756	699
Business Segments. | Health Care
Business Segment Information
Net sales	1,404	1,364	2,787	2,693
Operating Income	460	440	915	848
Business Segments. | Electronics and Energy
Business Segment Information
Net sales	1,181	1,312	2,325	2,636
Operating Income	229	278	437	563
Business Segments. | Consumer
Business Segment Information
Net sales	1,130	1,111	2,179	2,159
Operating Income	281	259	519	499
Corporate and Unallocated
Business Segment Information
Net sales	4	(4)	5	(2)
Operating Income	(88)	(74)	(129)	(174)
Elimination of Dual Credit
Business Segment Information
Net sales	(187)	(161)	(343)	(314)
Operating Income	$ (42)	$ (35)	$ (76)	$ (69)