Note 14 - Commitments, Contingencies, and Guarantees (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 267
Liability for Uncertainty in Income Taxes, Current	48
Operating Leases, Rent Expense	$ 105	$ 94	$ 92
Number of Hazardous Waste Sites	17
Environmental Cleanup and Related Litigation [Member]
Accrual for Environmental Loss Contingencies	$ 43	$ 37
Standby Letters of Credit [Member]
Guarantor Obligations, Maximum Exposure, Undiscounted	51
Standby Letters of Credit [Member] | Other Current Liabilities [Member]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 39