Business Segments (Segment information) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Business Segment Information
Net sales	$ 7,686	$ 8,134	$ 15,264	$ 15,965
Operating Income	1,840	1,856	3,570	3,572
Assets	31,388		31,388		$ 31,269
Depreciation and amortization			683	708
Business Segments | Industrial
Business Segment Information
Net sales	2,634	2,815	5,292	5,591
Operating Income	609	617	1,207	1,235
Business Segments | Safety and Graphics
Business Segment Information
Net sales	1,432	1,494	2,804	2,917
Operating Income	364	353	699	671
Business Segments | Electronics and Energy
Business Segment Information
Net sales	1,310	1,422	2,632	2,733
Operating Income	277	293	560	520
Business Segments | Health Care
Business Segment Information
Net sales	1,364	1,416	2,693	2,790
Operating Income	440	434	848	861
Business Segments | Consumer
Business Segment Information
Net sales	1,111	1,139	2,159	2,218
Operating Income	259	241	499	469
Corporate and Unallocated
Business Segment Information
Net sales	(4)	(1)	(2)	2
Operating Income	(74)	(49)	(174)	(121)
Elimination of Dual Credit
Business Segment Information
Net sales	(161)	(151)	(314)	(286)
Operating Income	$ (35)	$ (33)	$ (69)	$ (63)