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Other Expense (Income), Net
 12 Months Ended
Dec. 31, 2019
Other Income and Expenses [Abstract]  
Other Expense (Income), Net Other Expense (Income), Net
For the year ended December 31,
2019
 
2018
 
2017
Non-service related net periodic benefit cost
$
116

 
$
112

 
$
154

Interest income
(25
)
 
(23
)
 
(19
)
Foreign currency (gains) losses, net
(1
)
 
26

 
(5
)
Net loss (gain) from asset sales
7

 
10

 
(513
)
Other, net
25

 
(46
)
 
(103
)
 
$
122

 
$
79

 
$
(486
)

In 2019, Other, net included an increase in deferred compensation arrangements and related investment performance. In 2018, Non-service related net periodic benefit cost included lower net actuarial losses as a result of pension actions taken during 2018 (see Note F) and Other, net included a benefit from establishing a tax indemnification receivable of $29 reflecting Alcoa Corporation’s 49% share of a Spanish tax reserve (see Note T). In 2017, Net loss (gain) from asset sales included a gain on the sale of a portion of Arconic’s investment in Alcoa Corporation common stock of $351 (see Note U) and a gain of $167 on the Debt-for-Equity Exchange (see Note U). In 2017, Other, net included an adjustment of $81 to the contingent earn-out liability related to the 2014 acquisition of Firth Rixson (see Note S) and an adjustment of $25 associated with a separation-related guarantee liability (see Note T).