Note 12 - Discontinued Operations (Details) - Discontinued Operations from Statement of Income (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating revenues	$ 89		$ 87
Operating expenses
Cost of goods sold	54		53
Operation and maintenance	28		26
Depreciation and amortization	5		4
Taxes other than income taxes	1		3
Total operating expenses	107		86
Operating (loss) income	(18)		1
(Loss) income before income taxes	(18)		1
Income tax expense (2)	(32)	[1]		[1]
(Loss) Income from discontinued operations, net of tax	(50)	[2],[3]	1	[2],[3]
GoodwillImpairmentCharges [Member]
Operating expenses
Loss on sale and goodwill impairment (1)	$ 19	[4]		[4]

[1] Includes $31 million that was recorded in the first quarter of 2014 related to the cumulative foreign earnings for which no tax liabilities had been previously recorded.

[2] Amounts revised and or include prior period adjustments. See Note 13 for additional information.

[3] For additional information on our discontinued operations, see Note 12.

[4] Relates to $19 million of goodwill attributable to Tropical Shipping that was impaired as of March 31, 2014, based on the negotiated sales price.