Note 18 - Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2016

Notes Tables

Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

(in millions)	Three Months Ended March 31,
	2015		2016
Net gain from derivatives not designated as hedging instruments	$	2	$	18