Note 11 - Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

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

	Successor							Predecessor
(in millions)	For the Year Ended December 31, 2015		For the Year Ended December 31, 2014		For the Four Months Ended December 31, 2013			For the Eight Months Ended August 31, 2013
Net gain (loss) from derivatives not designated as hedging instruments	$	14	$	10	$	(14	)	$	2