Note 12 - Commitments and Contingencies (Details) - Cash Expenditures For Pollution Prevention and Waste Treatment (USD $) In Millions, unless otherwise specified	4 Months Ended			8 Months Ended	12 Months Ended						8 Months Ended	12 Months Ended
	Dec. 31, 2013 Successor [Member] Recurring Cost Pollution Prevention And Waste Treatment [Member]	Dec. 31, 2013 Successor [Member] Capital Expenditures For Pollution Prevention And Waste Treatment [Member]	Dec. 31, 2013 Successor [Member]	Aug. 31, 2013 Predecessor [Member] Recurring Cost Pollution Prevention And Waste Treatment [Member]	Dec. 31, 2012 Predecessor [Member] Recurring Cost Pollution Prevention And Waste Treatment [Member]	Dec. 31, 2011 Predecessor [Member] Recurring Cost Pollution Prevention And Waste Treatment [Member]	Dec. 31, 2012 Predecessor [Member] Capital Expenditures For Pollution Prevention And Waste Treatment [Member]	Dec. 31, 2011 Predecessor [Member] Capital Expenditures For Pollution Prevention And Waste Treatment [Member]	Dec. 31, 2012 Predecessor [Member] Site Remediation Costs [Member]	Dec. 31, 2011 Predecessor [Member] Site Remediation Costs [Member]	Aug. 31, 2013 Predecessor [Member]	Dec. 31, 2012 Predecessor [Member]	Dec. 31, 2011 Predecessor [Member]
Note 12 - Commitments and Contingencies (Details) - Cash Expenditures For Pollution Prevention and Waste Treatment [Line Items]
Cash Expenditures For Pollution Prevention And Waste Treatment	$ 5	$ 2	$ 7	$ 16	$ 28	$ 33	$ 1	$ 1	$ 1	$ 2	$ 16	$ 30	$ 36