Note 18 - Component of the Net Periodic benefit Cost - (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Pension Income Expense From Continuing And Discontinued Operations For Major Defined Benefit Plans [Line Items]
Total net pension (income) expense	$ (21)	$ (22)
Defined Benefit Plans [Member] | U.S. [Member]
Pension Income Expense From Continuing And Discontinued Operations For Major Defined Benefit Plans [Line Items]
Service cost	3	3
Interest cost	12	21
Expected return on plan assets	(42)	(49)
Prior service credit	(2)	(2)
Actuarial loss	7	4
Net pension (income) expense before special termination benefits	(22)	(23)
Special termination benefits		1
Total net pension (income) expense	(22)	(22)
Defined Benefit Plans [Member] | Non-US [Member]
Pension Income Expense From Continuing And Discontinued Operations For Major Defined Benefit Plans [Line Items]
Service cost	1	1
Interest cost	1	2
Expected return on plan assets	(3)	(5)
Actuarial loss	2	$ 2
Net pension (income) expense before special termination benefits	1
Total net pension (income) expense	$ 1