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Stock Based Compensation Plans and Other Benefit Plans - Additional Information (Details)
$ in Millions
12 Months Ended
Dec. 31, 2018
USD ($)
CompensationPlan
shares
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Participants
Employee
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of compensation plans | CompensationPlan 4    
Compensation cost not yet recognized $ 15.3    
Period of amortization expected to be recognized 3 years    
Non-cash compensation expense $ 23.3 $ 18.1 $ 16.0
Excess tax benefits on stock options exercised 22.1 15.1 30.0
Restricted shares, stock compensation expense 1.6    
Deferred Compensation Plans      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Stock compensation, liability 92.7 90.6  
Amounts charged to earnings $ 2.4 1.9 $ 2.3
Shares held in rabbi trust | shares 280,000    
Deferred Compensation Plans | Other Assets      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Funded balances $ 79.4 $ 81.4  
Deferred Compensation Plans | Management      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Percentage of compensation contribution 85.00%    
Deferred Compensation Plans | Director      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Percentage of compensation contribution 100.00%    
Pension Plan, Defined Benefit | Foreign Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Defined benefit plan, number of plan participants | Participants     336
Defined benefit plan, plan participants, number of active employees | Employee     53
One time termination payment to purchase annuities     $ 7.5
Pension Plan, Defined Benefit | Foreign Plan | Consumer International      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
One-time settlement expense     39.2
One-time settlement expense, net of tax     $ 31.5
Exercise Options Granted In Two Thousand Seven Or Latter Within Three Year From Date Of Termination      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Minimum required participant age and years of service 65 years    
Stock Option      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Stock exercise period, years 10 years    
Vesting period 3 years    
Minimum service period, years 5 years    
Minimum required participant age with five years of service 55 years    
Restricted Shares      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Stock compensation, liability $ 1.6    
Stock compensation, unamortized amount $ 3.1