XML 21 R57.htm IDEA: XBRL DOCUMENT v2.4.0.8
Plant Closure Provisions - Movements in Plant Closure and Restructuring Provisions (Detail) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]      
Beginning Balance $ 32.4 $ 30.4  
Charge for the period 1.4 1.3  
Utilized in the period (1.2) (1.0)  
Released in the period (1.0) 0  
Ending Balance 31.6 30.7  
Due within one year (4.8) (3.7) (6.2)
Due after one year 26.8 27.0 26.2
Severance [Member]
     
Restructuring Cost and Reserve [Line Items]      
Beginning Balance 1.0    
Charge for the period 0    
Utilized in the period 0    
Released in the period (1.0)    
Ending Balance 0    
Due within one year 0    
Due after one year 0    
Remediation [Member]
     
Restructuring Cost and Reserve [Line Items]      
Beginning Balance 31.4    
Charge for the period 1.4    
Utilized in the period (1.2)    
Released in the period 0    
Ending Balance 31.6    
Due within one year (4.8)    
Due after one year $ 26.8