Discontinued Operations (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from operations	$ 0	$ 43	$ 0	$ 63
Income tax expense		24		32
Income from operations, net of income taxes		19		31
Loss on disposal	0	(25)	0	(40)
Income tax benefit		(14)		(13)
Net loss on discontinued operations	$ 0	$ 8	$ 0	$ 4
Pratt and Whitney Rocketdyne [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Date			Jun. 14, 2013
UTC Power [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Date			Feb. 12, 2013