Note 17 - Deferred Tax Assets and Liabilities Significant Components (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets
Pension and postretirement obligations	$ 62	$ 96
Restructuring programs	1	1
Foreign tax credit	357	343
Inventories	9	10
Investment tax credit	48	58
Employee deferred compensation	23	25
Depreciation	64	68
Research and development costs	67	80
Tax loss carryforwards	338	307
Other deferred revenue	1	4
Other	69	73
Total deferred tax assets	1,039	1,065
Deferred tax liabilities
Leasing	2	2
Goodwill/intangibles	16	16
Unremitted foreign earnings	22	20
Total deferred tax liabilities	40	38
Net deferred tax assets before valuation allowance	999	1,027
Valuation allowance	853	856
Net deferred tax assets	$ 146	$ 171