Note 20 - Changes in Other Comprehensive Income (Loss), by Component (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract]
Currency translation adjustments		$ (2)	$ (12)	$ 2	$ (19)
Newly established net actuarial gain			7	5	8
Tax Provision			(2)	(2)	(2)
Newly established net actuarial gain, net of tax			5	3	6
Amortization of prior service credit	[1]	(2)	(2)	(6)	(6)
Amortization of actuarial losses	[1]	1	1	3	3
Recognition of (gains) losses due to curtailments and settlements			(2)	(2)	(1)
Total reclassification adjustments		(1)	(3)	(5)	(4)
Tax provision			1		1
Reclassification adjustments, net of tax		(1)	(2)	(5)	(3)
Pension and other postretirement benefit plan changes, net of tax		(1)	3	$ (2)	3
Other comprehensive income (loss), net of tax		$ (3)	$ (9)		$ (16)

[1] Reclassified to Total Net Periodic Benefit Cost - refer to Note 16, "Retirement Plans and Other Postretirement Benefits".