Note 12 - Discontinued Operations (Details) - USD ($)		3 Months Ended				6 Months Ended			9 Months Ended
	Sep. 01, 2014	Jun. 30, 2015	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2014
Note 12 - Discontinued Operations (Details) [Line Items]
Discontinued Operation, Tax Effect of Discontinued Operation								$ (32,000,000)
Income Tax Expense (Benefit)		$ 25,000,000		$ 37,000,000		$ 143,000,000		$ 240,000,000
Distributed Earnings Of Foreign Subsidiaries [Member]
Note 12 - Discontinued Operations (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount			$ 86,000,000
Tropical Shipping [Member]
Note 12 - Discontinued Operations (Details) [Line Items]
Proceeds from Divestiture of Businesses	$ 225,000,000
Discontinued Operation, Tax Effect of Discontinued Operation			$ 29,000,000		$ 31,000,000
Goodwill, Impairment Loss, Net of Tax					19,000,000
Income Tax Expense (Benefit)					$ 0
Depreciation And Amortization Suspension							$ 7,000,000
Tropical Shipping [Member] | Distributed Earnings Of Foreign Subsidiaries [Member]
Note 12 - Discontinued Operations (Details) [Line Items]
Discontinued Operation, Tax Effect of Discontinued Operation									$ 60,000,000