Note 17 - Other Postretirement Benefits (Details) - Amounts Recognized in the Consolidated Statement of Financial Position (Other Postretirement Benefit Plans [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Note 17 - Other Postretirement Benefits (Details) - Amounts Recognized in the Consolidated Statement of Financial Position [Line Items]
Other current and other postretirement liabilities	$ (86)	$ (95)
Other Current Liabilities [Member]
Note 17 - Other Postretirement Benefits (Details) - Amounts Recognized in the Consolidated Statement of Financial Position [Line Items]
Other current and other postretirement liabilities	(8)	(10)
Pension and Other Postretirement Liabilities [Member]
Note 17 - Other Postretirement Benefits (Details) - Amounts Recognized in the Consolidated Statement of Financial Position [Line Items]
Other current and other postretirement liabilities	$ (78)	$ (85)