Note 21 - Accumulated Other Comprehensive (Loss) Income (Details) - Reclassifications out of Accumulated Other Comprehensive Income (USD $) In Millions, unless otherwise specified	1 Months Ended	2 Months Ended		8 Months Ended		3 Months Ended	8 Months Ended	9 Months Ended	14 Months Ended
	Sep. 30, 2013 Successor [Member]	Aug. 31, 2013 Predecessor [Member] Amounts Reclassified From Accumulated Other Comprehensive Income [Member]		Aug. 31, 2013 Predecessor [Member] Amounts Reclassified From Accumulated Other Comprehensive Income [Member]		Sep. 30, 2012 Predecessor [Member]	Aug. 31, 2013 Predecessor [Member]	Sep. 30, 2012 Predecessor [Member]	Aug. 31, 2013 Predecessor [Member]
Note 21 - Accumulated Other Comprehensive (Loss) Income (Details) - Reclassifications out of Accumulated Other Comprehensive Income [Line Items]
Amortization of prior-service credit		$ (20)	[1]	$ (75)	[1]
Amortization of actuarial losses		41	[1]	185	[1]
Recognition of losses due to settlements		1,546	[1]	1,563	[1]
		1,567		1,673
	0	(428)		(448)		(7)	(462)	(15)	(432)
Reclassifications for the period		$ 1,139		$ 1,225

[1] See Note 16, "Retirement Plans and Other Postretirement Benefits," regarding the pensions and other postretirement plan obligation changes.