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Note 2 - Cash, Cash Equivalents and Restricted Cash (Details Textual) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
ABL Credit Agreement [Member]    
Restricted Cash And Cash Equivalents Items [Line Items]    
Restricted cash $ 35 $ 22
China [Member] | Lucky HuaGuang Graphics Co Ltd [Member]    
Restricted Cash And Cash Equivalents Items [Line Items]    
Escrow deposit 12 14
Brazil [Member]    
Restricted Cash And Cash Equivalents Items [Line Items]    
Restricted cash 4 5
MIR Bidco, SA [Member] | Flexographic Packaging Segment [Member]    
Restricted Cash And Cash Equivalents Items [Line Items]    
Cash collateral for guaranty $ 0 $ 4