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Note 10 - Guarantees (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Guarantee Obligations [Line Items]    
Product Warranty Expense $ 112,000,000 $ 125,000,000
Maximum [Member]    
Guarantee Obligations [Line Items]    
Environmental Settlement Historical Liabilities Trigger Amount $ 99,000,000  
Percentage of Liability Above 99 Million 50.00%  
Extended Warranty Period 6 years  
General Period [Member]    
Guarantee Obligations [Line Items]    
Extended Warranty Period 1 year  
Minimum [Member]    
Guarantee Obligations [Line Items]    
Extended Warranty Period 3 months  
Amended EBP Settlement Agreement [Member]    
Guarantee Obligations [Line Items]    
Accrual for Environmental Loss Contingencies $ 0  
Financial Guarantee [Member] | Guarantor Subsidiaries [Member]    
Guarantee Obligations [Line Items]    
Guarantor Obligations, Maximum Exposure, Undiscounted 13,000,000  
Guarantor Obligations, Current Carrying Value $ 5,000,000