Share Owners' Equity (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Increase (Decrease) in Share Owners' Equity
Balance	$ 1,222	$ 1,449	$ 1,096	$ 1,710
Net distribution to parent	(6)	(15)	(3)	(119)
Net earnings	109	45	182	120
Other comprehensive income (loss)	(74)	29	(24)	(191)
Distributions to noncontrolling interests		(12)		(12)
Acquisitions of noncontrolling interests				(12)
Balance	1,251	1,496	1,251	1,496
Other Contributed Capital
Increase (Decrease) in Share Owners' Equity
Balance	734	842	731	964
Net distribution to parent	(6)	(15)	(3)	(119)
Acquisitions of noncontrolling interests				(18)
Balance	728	827	728	827
Retained Earnings
Increase (Decrease) in Share Owners' Equity
Balance	2,300	2,153	2,233	2,082
Net earnings	105	40	172	111
Balance	2,405	2,193	2,405	2,193
Accumulated Other Comprehensive Loss.
Increase (Decrease) in Share Owners' Equity
Balance	(1,930)	(1,669)	(1,976)	(1,453)
Other comprehensive income (loss)	(62)	33	(16)	(183)
Balance	(1,992)	(1,636)	(1,992)	(1,636)
Noncontrolling Interests
Increase (Decrease) in Share Owners' Equity
Balance	118	123	108	117
Net earnings	4	5	10	9
Other comprehensive income (loss)	(12)	(4)	(8)	(8)
Distributions to noncontrolling interests		(12)		(12)
Acquisitions of noncontrolling interests				6
Balance	$ 110	$ 112	$ 110	$ 112