Note 26 - Reorganization Items, Net (Details) - Reorganization Items, Net (USD $) In Millions, unless otherwise specified	1 Months Ended	4 Months Ended	12 Months Ended	2 Months Ended	3 Months Ended	8 Months Ended	12 Months Ended
	Aug. 31, 2013	Dec. 31, 2013	Dec. 31, 2014	Aug. 31, 2013	Mar. 31, 2013	Aug. 31, 2013	Dec. 31, 2012
Note 26 - Reorganization Items, Net (Details) - Reorganization Items, Net [Line Items]
Provision for expected allowed claims	$ 27
Successor [Member]
Note 26 - Reorganization Items, Net (Details) - Reorganization Items, Net [Line Items]
Professional fees		19	10
Provision for expected allowed claims			(1)
Gain on settlement of other postemployment liabilities			(2)
Other items, net		3	8
Reorganization items, net		16	13
Cash payments for reorganization items		85	21
Predecessor [Member]
Note 26 - Reorganization Items, Net (Details) - Reorganization Items, Net [Line Items]
Professional fees						114	178
DIP credit agreement financing costs							47
Provision for expected allowed claims						133	856
Gain on settlement of other postemployment liabilities						(94)	(238)
Net gain on reorganization adjustments						(1,957)
Net gain on fresh start adjustments						(302)
Other items, net						119	717
Reorganization items, net				(2,217)	119	(2,026)	843
Cash payments for reorganization items						$ 210	$ 167