Goodwill and Intangible Assets (Goodwill balance by business segment) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Goodwill
Balance at the beginning of the period	$ 7,047
Acquisition activity	106
Translation and other	(84)
Balance at the end of the period	7,069
Industrial and Transportation
Goodwill
Balance at the beginning of the period	1,961
Acquisition activity	6
Translation and other	(9)
Balance at the end of the period	1,958
Health Care
Goodwill
Balance at the beginning of the period	1,514
Acquisition activity	94
Translation and other	(28)
Balance at the end of the period	1,580
Consumer and Office
Goodwill
Balance at the beginning of the period	228
Acquisition activity	6
Translation and other	2
Balance at the end of the period	236
Safety, Security and Protection Services
Goodwill
Balance at the beginning of the period	1,675
Acquisition activity	0
Translation and other	(21)
Balance at the end of the period	1,654
Display and Graphics
Goodwill
Balance at the beginning of the period	993
Acquisition activity	0
Translation and other	(11)
Balance at the end of the period	982
Electro and Communications
Goodwill
Balance at the beginning of the period	676
Acquisition activity	0
Translation and other	(17)
Balance at the end of the period	$ 659