Note 17 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Net operating loss carryforwards	$ 181	$ 187
Postretirement benefits, including pensions	49	71
Research and development costs	208	169
Expense accruals	49	77
Other tax credits recoverable	241	218
Deferred Tax Assets, Capital Loss Carryforwards	51	56
Inventory reserves	32	25
Postemployment and other benefits	4	4
Intangibles		1
Leasing activities	69	55
Other	71	26
Total	955	889
Valuation allowances	(512)	(258)
Deferred tax assets	443	631
Unremitted earnings	(9)	(10)
Intangibles	(1)
Depreciation	(66)	(74)
Deferred tax liabilities	(76)	(84)
Net deferred tax assets	$ 367	$ 547