Note 14 - Component of the Net Periodic benefit Cost - (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Pension Income Expense From Continuing And Discontinued Operations For Major Defined Benefit Plans [Line Items]
Total net pension (income) expense			$ (42)	$ (43)
Defined Benefit Plans [Member] | U.S. [Member]
Pension Income Expense From Continuing And Discontinued Operations For Major Defined Benefit Plans [Line Items]
Service cost	$ 2	$ 3	5	6
Interest cost	12	22	24	43
Expected return on plan assets	(42)	(49)	(84)	(98)
Prior service credit	(1)	(1)	(3)	(3)
Actuarial loss	8	3	15	7
Net pension (income) expense before special termination benefits	(21)	(22)	(43)	(45)
Special termination benefits				1
Net pension (income) expense from major plans	(21)	(22)	(43)	(44)
Total net pension (income) expense	(21)	(22)	(43)	(44)
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	2	2
Interest cost	1	2	2	4
Expected return on plan assets	(4)	(4)	(7)	(9)
Actuarial loss	$ 2	$ 1	4	3
Net pension (income) expense before special termination benefits			1
Net pension (income) expense from major plans			1
Other plans				1
Total net pension (income) expense			$ 1	$ 1