Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Pro-Forma Information) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012		Jun. 30, 2013	Jun. 30, 2012
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 1,653	$ 1,422		$ 3,001	$ 1,829
Business Acquisitions Pro Forma Net Sales		15,802			30,218
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax		1,542			2,830
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax, Per Share, Basic		$ 1.73			$ 3.17
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax, Per Share, Diluted		$ 1.70			$ 3.13
Amortization of Acquired Intanglible Assets [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		46	[1]		92	[1]
Business Acquisition, Pro Forma Information, Description				1 Added the additional amortization of the acquired Goodrich intangible assets recognized at fair value in purchase accounting and eliminated the historical Goodrich intangible asset amortization expense.
Utilization of Contractual Customer Obligation [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		(47)	[2]		(93)	[2]
Business Acquisition, Pro Forma Information, Description				2 Added the additional utilization of the Goodrich contractual customer obligation recognized in purchase accounting.
Acquisition-related Costs [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		(29)	[3]		(57)	[3]
Business Acquisition, Pro Forma Information, Description				3 Removed the UTC/Goodrich fees that were incurred in connection with the acquisition of Goodrich from the first quarter and six months of 2012, and considered those fees as incurred during the corresponding periods of 2011.
Interest Expense Incurred [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		$ 24	[4]		$ 67	[4]
Business Acquisition, Pro Forma Information, Description				4 Added the additional interest expense for the indebtedness we incurred to finance the acquisition of Goodrich and reduced interest expense for the debt fair value adjustment which would have been amortized.

[1] 1 Added the additional amortization of the acquired Goodrich intangible assets recognized at fair value in purchase accounting and eliminated the historical Goodrich intangible asset amortization expense.

[2] 2 Added the additional utilization of the Goodrich contractual customer obligation recognized in purchase accounting.

[3] 3 Removed the UTC/Goodrich fees that were incurred in connection with the acquisition of Goodrich from the first quarter and six months of 2012, and considered those fees as incurred during the corresponding periods of 2011.

[4] 4 Added the additional interest expense for the indebtedness we incurred to finance the acquisition of Goodrich and reduced interest expense for the debt fair value adjustment which would have been amortized.