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Net Earnings per Common Unit
 12 Months Ended
Dec. 31, 2015
Earnings Per Unit [Abstract]  
Net Earnings per Common Unit
Net Earnings per Common Unit
Net earnings per common unit is based on the weighted-average number of common units outstanding during the period. The following table provides a calculation for net earnings per common unit for the years ended December 31, 2015, 2014 and 2013:

 
Year Ended December 31,
 
2015
 
2014
 
2013
 
(in millions, except per unit amounts)
Basic earnings per Common Unit:
 

 
 

 
 

Net earnings
$
306.9

 
$
370.0

 
$
502.4

Less: Net earnings allocable to General Partner
117.7

 
143.1

 
205.7

Less: Net earnings allocable to Class B Common Units
3.0

 
3.6

 
4.9

Net earnings allocable to Common Units
$
186.2

 
$
223.3

 
$
291.8

Weighted-average Common Units outstanding
18.5

 
18.5

 
18.5

Net earnings per Common Unit
$
10.06

 
$
12.07

 
$
15.77


There were no dilutive TNCLP units outstanding for the years ended December 31, 2015, 2014 and 2013.