Shareowners' Equity (Changes Noncontrolling Interests) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2015		Jun. 30, 2014	Jun. 30, 2015		Jun. 30, 2014
Stockholders' Equity Note [Abstract]
Beginning balance	$ 2,987		$ 440	$ 2,899	[1]	$ 432	[1]
Net earnings	93		10	184		21
Dividends	(2)		(1)	(4)		(1)
Dispositions	(6)		(92)	(6)		(92)
AOCI and other	11		(7)	10		(10)
Ending balance	$ 3,083	[1]	$ 350	$ 3,083	[1]	$ 350

[1] (c) Included AOCI attributable to noncontrolling interests of $ (177) million and $ (154) million at June 30, 2015 and December 31, 2014 , respectively.