Share Owners' Equity (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Increase (Decrease) in Share Owners' Equity
Balance	$ 76	$ 1,010	$ 564	$ 900
Issuance of common stock				$ 2
Issuance of common stock (in shares)				100
Reissuance of common stock	$ 3	$ 3	$ 5	$ 5
Reissuance of common stock (in shares)	300	100	500	200
Treasury shares purchased				$ (38)
Treasury shares purchased (in shares)				2,100
Stock compensation	$ 4	$ 6	$ 5	$ 11
Stock compensation (in shares)	100	500	800	1,700
Net earnings (loss)	$ (101)	$ 70	$ (46)	$ 154
Other comprehensive income (loss)	60	8	(476)	68
Dividends declared		(7)	(8)	(7)
Other			(2)	(5)
Balance	42	1,090	42	1,090
Common Stock
Increase (Decrease) in Share Owners' Equity
Balance	2	2	2	2
Balance	2	2	2	2
Capital in Excess of Par Value
Increase (Decrease) in Share Owners' Equity
Balance	3,128	3,130	3,130	3,124
Issuance of common stock				2
Reissuance of common stock	(4)		(7)	(1)
Stock compensation	4	6	5	11
Balance	3,128	3,136	3,128	3,136
Treasury Stock
Increase (Decrease) in Share Owners' Equity
Balance	(730)	(745)	(733)	(705)
Reissuance of common stock	7	3	12	6
Treasury shares purchased				(38)
Other			(2)	(5)
Balance	(723)	(742)	(723)	(742)
Retained Earnings (Loss)
Increase (Decrease) in Share Owners' Equity
Balance	(47)	412	(89)	333
Net earnings (loss)	(101)	65	(51)	144
Dividends declared		(7)	(8)	(7)
Balance	(148)	470	(148)	470
Accumulated Other Comprehensive Loss.
Increase (Decrease) in Share Owners' Equity
Balance	(2,370)	(1,911)	(1,843)	(1,968)
Other comprehensive income (loss)	62	20	(465)	77
Balance	(2,308)	(1,891)	(2,308)	(1,891)
Non-controlling Interests
Increase (Decrease) in Share Owners' Equity
Balance	93	122	97	114
Net earnings (loss)		5	5	10
Other comprehensive income (loss)	(2)	(12)	(11)	(9)
Balance	$ 91	$ 115	$ 91	$ 115