Note 13 - Restructuring Liabilities (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)
Restructuring Cost And Reserve [Line Items]
Beginning Balance	$ 10
Charges	2
Utilization/cash payments	(4)
Ending Balance	8
Severance Reserve [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	6	[1]
Charges	2	[1]
Utilization/cash payments	(4)	[1]
Ending Balance	4	[1]
Exit Costs Reserve [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	4	[1]
Ending Balance	$ 4	[1]

[1] The severance and exit costs reserves require the outlay of cash, while long-lived asset impairments and inventory write-downs represent non-cash items.