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8. Other Income and Expenses
 9 Months Ended
Sep. 30, 2018
Other Income and Expenses [Abstract]  
Other Income and Other Expense Disclosure .    OTHER INCOME AND EXPENSE, NET

Other (income) expense, net includes the following components (in millions):

 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2018
 
2017
 
2018
 
2017
Interest and investment income
$
(2.6
)
 
$
(1.4
)
 
$
(20.9
)
 
$
(14.5
)
Net realized loss (gain) on investments
0.1

 
(0.2
)
 
0.3

 
(0.3
)
Gain on sale of land
—

 
—

 
(4.1
)
 
—

Gain on divestiture of product line
—

 
—

 
(5.1
)
 
—

Other (income) expense
(0.1
)
 
0.5

 
0.2

 
1.3

Other (income) expense, net
$
(2.6
)
 
$
(1.1
)
 
$
(29.6
)
 
$
(13.5
)


Prior year amounts have been adjusted (see Note 1 to the condensed consolidated financial statements in regard to ASU 2017-07 for pension and other postretirement benefits).