Share Owners' Equity (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Increase (Decrease) in Share Owners' Equity
Balance	$ 1,509	$ 1,055
Net distribution to parent	(46)	(6)
Net earnings	103	53
Other comprehensive income (loss)	128	194
Balance	1,694	1,296
Other Contributed Capital
Increase (Decrease) in Share Owners' Equity
Balance	553	635
Net distribution to parent	(46)	(6)
Balance	507	629
Retained Earnings (Loss)
Increase (Decrease) in Share Owners' Equity
Balance	2,622	2,442
Net earnings	98	49
Balance	2,720	2,491
Accumulated Other Comprehensive Loss
Increase (Decrease) in Share Owners' Equity
Balance	(1,785)	(2,131)
Other comprehensive income (loss)	122	191
Balance	(1,663)	(1,940)
Non-controlling Interests
Increase (Decrease) in Share Owners' Equity
Balance	119	109
Net earnings	5	4
Other comprehensive income (loss)	6	3
Balance	$ 130	$ 116