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Other Income, Net
 12 Months Ended
Dec. 31, 2019
Other Income and Expenses [Abstract]  
OTHER INCOME, NET OTHER INCOME, NET

Total other income, net was as follows for the years ended December 31:
(in millions)
 
2019
 
2018
 
2017
AFUDC – Equity
 
$
14.4

 
$
15.2

 
$
11.4

Non-service components of net periodic benefit costs
 
36.2

 
26.0

 
9.1

Gains (losses) from investments held in rabbi trust
 
21.2

 
(1.8
)
 
21.5

Other, net
 
30.4

 
30.9

 
31.7

Other income, net
 
$
102.2

 
$
70.3

 
$
73.7