Note 12 - Discontinued Operations (Details) - Assets and Liabilities of Tropical Shipping (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents	$ 26		$ 27
Total current assets	264	283	291
Total current liabilities	36	40	34
Tropical Shipping [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents	26	24	27
Short-term investments	3	1	2
Receivables	34	36	35
Inventories	9	9	9
Other	2	1	2
Total current assets	74	71	75
Property, plant and equipment, net	123	124	127
Goodwill	42	61	61
Intangible assets	19	19	20
Other	6	8	8
Total long-term assets and other deferred debits	190	212	216
Total assets held for sale	264	283	291
Other accounts payable - trade	9	11	8
Accrued expenses	4	7	4
Other	23	22	22
Total current liabilities	36	40	34
Total liabilities held for sale	$ 36	$ 40	$ 34