Repositioning and Other Charges (Details 4) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Restructuring And Related Activities Reportable Segment [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 298	$ 72	$ 349	$ 134
Restructuring And Related Activities Reportable Segment Paragraph Details [Line Items]
Probable And Reasonably Estimable Environmental Liabilities Charges Expense	76	68	177	169
Aerospace [Member] | Repositioning Actions 2010 [Member]
Restructuring And Related Activities Reportable Segment [Line Items]
Restructuring and Related Cost, Expected Cost			11
Restructuring and Related Cost, Incurred Cost			(1)
Restructuring And Related Activities Reportable Segment Total	10		10
Aerospace [Member] | Repositioning Actions 2011 [Member]
Restructuring And Related Activities Reportable Segment [Line Items]
Restructuring and Related Cost, Expected Cost			15
Restructuring And Related Activities Reportable Segment Total	15		15
Automation and Control Solutions [Member] | Repositioning Actions 2010 [Member]
Restructuring And Related Activities Reportable Segment [Line Items]
Restructuring and Related Cost, Expected Cost			10
Restructuring and Related Cost, Incurred Cost			(3)
Restructuring And Related Activities Reportable Segment Total	7		7
Automation and Control Solutions [Member] | Repositioning Actions 2011 [Member]
Restructuring And Related Activities Reportable Segment [Line Items]
Restructuring and Related Cost, Expected Cost			15
Restructuring And Related Activities Reportable Segment Total	15		15
Transportation Systems [Member] | Repositioning Actions 2010 [Member]
Restructuring And Related Activities Reportable Segment [Line Items]
Restructuring and Related Cost, Expected Cost			2
Restructuring And Related Activities Reportable Segment Total	2		2
Transportation Systems [Member] | Repositioning Actions 2011 [Member]
Restructuring And Related Activities Reportable Segment [Line Items]
Restructuring and Related Cost, Expected Cost			7
Restructuring And Related Activities Reportable Segment Total	7		7
Repositioning Actions 2010 [Member]
Restructuring And Related Activities Reportable Segment [Line Items]
Restructuring and Related Cost, Expected Cost			23
Restructuring and Related Cost, Incurred Cost			(4)
Restructuring And Related Activities Reportable Segment Total	19		19
Repositioning Actions 2011 [Member]
Restructuring And Related Activities Reportable Segment [Line Items]
Restructuring and Related Cost, Expected Cost			37
Restructuring And Related Activities Reportable Segment Total	37		37
Bendix Asbestos Loss Contingency Liability [Member]
Restructuring And Related Activities Reportable Segment Paragraph Details [Line Items]
Asbestos related litigation charges, net of insurance	38	48	116	135
Potential settlement of certain legal matters		$ 24		$ 42