Note 2 - Restructuring, Impairment and Other Charges (Details) - Restructuring, Impairment and Other Charges (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Note 2 - Restructuring, Impairment and Other Charges (Details) - Restructuring, Impairment and Other Charges [Line Items]
Reserve			$ 44us-gaap_RestructuringReserve	$ 42us-gaap_RestructuringReserve	$ 10us-gaap_RestructuringReserve
Net charges/reversals			49us-gaap_RestructuringCharges	41us-gaap_RestructuringCharges	52us-gaap_RestructuringCharges
Non cash adjustments			(10)	(4)	(12)
Cash payments			(39)us-gaap_PaymentsForRestructuring	(35)us-gaap_PaymentsForRestructuring	(15)us-gaap_PaymentsForRestructuring
Reserve	42us-gaap_RestructuringReserve	10us-gaap_RestructuringReserve	44us-gaap_RestructuringReserve	44us-gaap_RestructuringReserve	42us-gaap_RestructuringReserve
Impairment charges and disposal of long-lived assets:	44us-gaap_AssetImpairmentCharges	130us-gaap_AssetImpairmentCharges	22us-gaap_AssetImpairmentCharges	26us-gaap_AssetImpairmentCharges	81us-gaap_AssetImpairmentCharges
Total restructuring, impairment and other charges			71	67	133
Employee Severance [Member]
Note 2 - Restructuring, Impairment and Other Charges (Details) - Restructuring, Impairment and Other Charges [Line Items]
Reserve			36	38	2
Net charges/reversals			48	34	47
Non cash adjustments			(9)	(4)	(7)
Cash payments			(31)	(32)
Reserve	38		44	36	38
Other Restructuring [Member]
Note 2 - Restructuring, Impairment and Other Charges (Details) - Restructuring, Impairment and Other Charges [Line Items]
Reserve			8	4	8
Net charges/reversals			1	7	5
Non cash adjustments			(1)		(5)
Cash payments			(8)	(3)
Reserve	$ 4			$ 8	$ 4

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of consideration other than cash used to fully or partially settle an accrued restructuring cost.

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The aggregate amount provided for estimated restructuring charges, remediation costs, and asset impairment loss during an accounting period. Generally, these items are either unusual or infrequent, but not both (in which case they would be extraordinary items).

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