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Other Income (expense)
 9 Months Ended
Sep. 30, 2018
Other Income (expense) [Abstract]  
Other income (expense)
Other income (expense)

 
 
Three Months Ended
September 30
 
Nine Months Ended September 30
 
(Millions of dollars)
 
2018
 
2017
 
2018
 
2017
 
Investment and interest income
 
$
59

 
$
32

 
$
139

 
$
86

 
Foreign exchange gains (losses) 1
 
(81
)
 
(29
)
 
(160
)
 
(189
)
 
License fee income
 
29

 
27

 
96

 
74

 
Gain on sale of securities and affiliated company
 
4

 
36

 
4

 
121

2 

Net periodic pension and OPEB income (cost), excluding service cost
 
85

 
68

 
257

 
172

 
Miscellaneous income (loss)
 
6

 
(2
)
 
14

 
(4
)
 
Total
 
$
102

 
$
132

 
$
350

 
$
260

 
1 Includes gains (losses) from foreign exchange derivative contracts. See Note 5 for further details.
2 Includes pretax gain of $85 million related to the sale of Caterpillar's equity interest in Iron Planet Holdings Inc.