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Note 1 - Basis of Presentation and Recent Accounting Pronouncements (Details Textual) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jan. 01, 2019
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Basis Of Presentation And Recent Accounting Pronouncements [Line Items]        
Cash And Cash Equivalents   $ 216   $ 246
Outstanding inter-company loans   426   390
Short-Term Intercompany Loans   128   92
Net decrease in cash and cash equivalents, restricted cash and cash in assets held for sale   9   102
Net cash used in operating activities   (13) $ (49) (49)
ASU 2016-02 [Member]        
Basis Of Presentation And Recent Accounting Pronouncements [Line Items]        
Cumulative effect adjustment recorded to retained earnings $ 5      
United States [Member]        
Basis Of Presentation And Recent Accounting Pronouncements [Line Items]        
Cash And Cash Equivalents   90   117
Outside US [Member]        
Basis Of Presentation And Recent Accounting Pronouncements [Line Items]        
Cash And Cash Equivalents   126   129
China [Member]        
Basis Of Presentation And Recent Accounting Pronouncements [Line Items]        
Cash And Cash Equivalents   $ 59   $ 72