Business Segments (Segment information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Business Segment Information
Net sales	$ 7,534	$ 7,680	$ 15,020	$ 14,991
Operating Income	1,728	1,655	3,362	3,233
Industrial and Transportation
Business Segment Information
Net sales	2,627	2,641	5,287	5,091
Operating Income	614	544	1,214	1,060
Health Care
Business Segment Information
Net sales	1,283	1,269	2,563	2,524
Operating Income	414	364	816	733
Consumer and Office
Business Segment Information
Net sales	1,062	1,038	2,105	2,038
Operating Income	222	202	456	417
Safety, Security and Protection Services
Business Segment Information
Net sales	991	1,011	1,972	1,940
Operating Income	258	242	489	441
Display and Graphics
Business Segment Information
Net sales	882	973	1,714	1,916
Operating Income	179	222	342	452
Electro and Communications
Business Segment Information
Net sales	824	864	1,632	1,700
Operating Income	195	200	363	378
Corporate and Unallocated
Business Segment Information
Net sales	2	3	3	8
Operating Income	(124)	(93)	(262)	(198)
Elimination of Dual Credit
Business Segment Information
Net sales	(137)	(119)	(256)	(226)
Operating Income	$ (30)	$ (26)	$ (56)	$ (50)