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Employee Plans - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Y
Age
Dec. 31, 2012
Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of unissued common stock available for grant under the plans 3.2    
Age requirement for vesting provision, minimum 55    
Completion of service period (in years) for stock awards 5 years    
Maximum contractual term of options granted (in years) 5    
Option vesting period (in years) 3 years    
Share-based compensation expense $ 12.5 $ 14.3 $ 13.9
Cash received from stock options exercised 4.9 0.4  
Deferred compensation Liability 13.2 11.5  
Pension Plans
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Matching contribution by the company as percentage of participants' contribution 50.00%    
Percentage of eligible pay contributed by participants that will be matched 6.00%    
Cost recognized for contribution plans 11.8 12.1 12.5
International Plans
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Cost recognized for contribution plans 26.7 30.0 33.7
Scenario, Forecast
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected pretax amortization of net loss in 2014 190.9    
Expected pretax amortization of prior service cost in 2014 (1.4)    
Expected cash contributions by the company in 2014 232.4    
Scenario, Forecast | Other Postretirement Benefit Plans
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected pretax amortization of net loss in 2014 3.3    
Expected pretax amortization of prior service cost in 2014 1.7    
Expected cash contributions by the company in 2014 19.0    
Scenario, Forecast | Pension Plans
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected pretax amortization of net loss in 2014 151.7    
Expected pretax amortization of prior service cost in 2014 (1.6)    
Scenario, Forecast | International Plans
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected cash contributions by the company in 2014 106.7    
Scenario, Forecast | U.S. Plans
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected cash contributions by the company in 2014 125.7    
Performance-Based Unit | Minimum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares which will vest after achievement of goals 0    
Performance-Based Unit | Maximum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares which will vest after achievement of goals 1.5    
Employee Stock Option
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense 9.3 8.9 9.0
Total intrinsic value of options exercised 7.9 0.9 4.4
Total unrecognized compensation cost 3.0    
Unrecognized compensation cost, Weighted-average recognition period 1 year 8 months 12 days    
Restricted Stock Units
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense 3.2 5.4 4.9
Total unrecognized compensation cost 1.6    
Unrecognized compensation cost, Weighted-average recognition period 2 years    
Aggregate weighted-average grant-date fair value of units granted 5.3 3.3 11.3
Aggregate weighted-average grant-date fair value of units vested $ 4.5 $ 4.1 $ 5.7