Note 14 - Restructuring (Details) (Global Restructuring Plan 2012 [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Dec. 31, 2012 employees positions	Mar. 31, 2013
Global Restructuring Plan 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated		600
Restructuring and Related Cost, Expected Number of Contractor and Other Positions Eliminated		300
Restructuring and Related Cost, Cost Incurred to Date			$ 26
Restructuring and Related Cost, Incurred Cost	$ (4)