Note 21 - Other Comprehensive (Loss) Income (Details) - Changes in Other Comprehensive (Loss) Income, by Component (USD $) In Millions, unless otherwise specified	4 Months Ended		12 Months Ended		8 Months Ended		12 Months Ended
	Dec. 31, 2013		Dec. 31, 2014		Aug. 31, 2013		Dec. 31, 2012
Successor [Member]
Note 21 - Other Comprehensive (Loss) Income (Details) - Changes in Other Comprehensive (Loss) Income, by Component [Line Items]
Currency translation adjustments	$ 1		$ (33)
Pension and other postretirement benefit plan changes
Newly established prior service credit	6		61
Newly established net actuarial (loss) gain	95		(278)
Tax provision (benefit)	3		7
Newly established prior service credit and net actuarial (loss) gain, net of tax	98		(210)
Reclassification adjustments:
Amortization of prior service credit		[1]	(3)	[1]
Amortization of actuarial losses		[1]	1	[1]
Recognition of prior service credit due to curtailments		[1]		[1]
Recognition of losses due to settlements and curtailments		[1]	10	[1]
Total reclassification adjustments			8
Reclassification adjustments, net of tax			8
Pension and other postretirement benefit plan changes, net of tax	98		(202)
Other comprehensive (loss) income	99		(235)
Predecessor [Member]
Note 21 - Other Comprehensive (Loss) Income (Details) - Changes in Other Comprehensive (Loss) Income, by Component [Line Items]
Currency translation adjustments					4		(14)
Unrealized (losses) gains
Unrealized loss arising from hedging activity before tax							(2)
Tax provision (benefit)							(1)
Unrealized loss arising from hedging activity net of tax							(1)
Reclassification adjustment for hedging related gains included in net earnings, before tax							5
Reclassification adjustment for hedging related gains included in net earnings, net of tax							5
Pension and other postretirement benefit plan changes
Newly established prior service credit							460
Newly established net actuarial (loss) gain					393		(982)
Tax provision (benefit)					14		(138)
Newly established prior service credit and net actuarial (loss) gain, net of tax					379		(384)
Reclassification adjustments:
Amortization of prior service credit					(75)	[1]	(82)	[1]
Amortization of actuarial losses					185	[1]	268	[1]
Recognition of prior service credit due to curtailments						[1]	(9)	[1]
Recognition of losses due to settlements and curtailments					1,563	[1]	551	[1]
Total reclassification adjustments					1,673		728
Tax provision					448		284
Reclassification adjustments, net of tax					1,225		444
Pension and other postretirement benefit plan changes, net of tax					1,604		60
Other comprehensive (loss) income					$ 1,608		$ 50

[1] Reclassified to Pension (income) expense - refer to Note 16, "Retirement Plans" and Note 17, "Other Postretirement Benefits" for additional information.