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Earnings Per Unit
 12 Months Ended
Dec. 31, 2019
Earnings Per Unit [Abstract]  
Earnings Per Unit
Note 11.  Earnings Per Unit

The following table presents our calculation of basic and diluted earnings per unit for the years indicated:

 
  
For the Year Ended December 31,
  
 
  
2019
    
2018
    
2017
  
BASIC EARNINGS PER UNIT
                  
Net income attributable to limited partners
  
$
4,591.3
    
$
4,172.4
    
$
2,799.3
  
Earnings allocated to phantom unit awards (1)
    
(27.7
)
    
(21.5
)
    
(15.9
)
Net income available to common unitholders
  
$
4,563.6
    
$
4,150.9
    
$
2,783.4
  
 
                        
Basic weighted-average number of common units outstanding
    
2,188.6
      
2,176.5
      
2,145.0
  
 
                        
Basic earnings per unit
  
$
2.09
    
$
1.91
    
$
1.30
  
 
                        
DILUTED EARNINGS PER UNIT
                        
Net income attributable to limited partners
  
$
4,591.3
    
$
4,172.4
    
$
2,799.3
  
 
                        
Diluted weighted-average number of units outstanding:
                        
Distribution-bearing common units
    
2,188.6
      
2,176.5
      
2,145.0
  
Phantom units (1)
    
13.1
      
10.5
      
9.3
  
Total
    
2,201.7
      
2,187.0
      
2,154.3
  
 
                        
Diluted earnings per unit
  
$
2.09
    
$
1.91
    
$
1.30
  

(1)
Phantom units are considered participating securities for purposes of computing basic earnings per unit. See Note 13 for information regarding our phantom units.