Note 11 - Restructuring Liabilities (Details) - USD ($) $ in Millions		3 Months Ended					9 Months Ended
		Sep. 30, 2016	Jun. 30, 2016		Mar. 31, 2016		Sep. 30, 2016
Restructuring Cost And Reserve [Line Items]
Balance		$ 11	$ 8		$ 11		$ 11
Restructuring Costs		1					14
Utilization/cash payments		(4)	(4)		(7)
Other adjustments and reclasses			(1)	[1]	(1)	[2]
Balance		8	11		8		8
Continuing Operations [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		1	7		5
Discontinued Operations [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs			1				1
Severance Reserve [Member]
Restructuring Cost And Reserve [Line Items]
Balance	[3]	8	5		7		7
Restructuring Costs							12
Utilization/cash payments	[3]	(4)	(3)		(5)
Other adjustments and reclasses	[3]		(1)	[1]	(1)	[2]
Balance	[3]	5	8		5		5
Severance Reserve [Member] | Continuing Operations [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs	[3]	1	6		4
Severance Reserve [Member] | Discontinued Operations [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs	[3]		1
Exit Costs Reserve [Member]
Restructuring Cost And Reserve [Line Items]
Balance	[3]	3	3		4		4
Utilization/cash payments	[3]		(1)		(1)
Balance	[3]	$ 3	3		3		$ 3
Exit Costs Reserve [Member] | Continuing Operations [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs	[3]		$ 1
Long Lived Asset Impairments and Inventory Write Downs [Member]
Restructuring Cost And Reserve [Line Items]
Utilization/cash payments	[3]				(1)
Long Lived Asset Impairments and Inventory Write Downs [Member] | Continuing Operations [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs	[3]				$ 1

[1] The $(1) million represents severance related charges for pension plan curtailments and special termination benefits, which are reflected in Pension and other retirement liabilities in the Consolidated Statement of Financial Position.

[2] The $(1) million represents severance related charges for pension plan special termination benefits, which are reflected in Pension and other postretirement liabilities in the Consolidated Statement of Financial Position.

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