Note 2 - Restructuring, Impairment and Other Charges - Restructuring, Impairment and Other Charges (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Employee Severance [Member]
Reserve			$ 3,000,000
Net Charges/Reversals			15,000,000
Non-cash adjustments			(1,000,000)
Restructuring payments			(9,000,000)
Reserve	$ 8,000,000		8,000,000
Other Restructuring [Member]
Reserve			0
Net Charges/Reversals			1,000,000
Non-cash adjustments			0
Restructuring payments			(1,000,000)
Reserve	0		0
Reserve			3,000,000
Net Charges/Reversals			16,000,000
Non-cash adjustments			(1,000,000)
Restructuring payments			(10,000,000)	$ (38,000,000)
Reserve	8,000,000		8,000,000
Disposal of long-lived assets			62,000,000
Restructuring, Settlement and Impairment Provisions	$ 0	$ 0	$ 78,000,000	$ 0