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Restructuring and Other (Narrative) (Details)
$ in Millions
3 Months Ended
Mar. 31, 2017
USD ($)
employee
facility
Mar. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
Restructuring Cost and Reserve [Line Items]      
Asset impairments and sales $ (6) $ (2)  
European specialty packaging business [Member]      
Restructuring Cost and Reserve [Line Items]      
Asset impairments and sales (5)    
2015 European Division Actions [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs $ 21    
Number of facilities closed | facility 2    
Restructuring accrual $ 4   $ 8
2015 European Division Actions [Member] | Termination Benefits [Member]      
Restructuring Cost and Reserve [Line Items]      
Reduction in number of employees | employee 280    
Restructuring accrual $ 4   $ 8
Other Actions [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring accrual $ 11