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Other Expenses (Income), Net
 12 Months Ended
Dec. 31, 2021
Other Income and Expenses [Abstract]  
Other Expenses (Income), Net Other Expenses (Income), Net
For the year ended December 31,202120202019
Non-service costs — Pension and OPEB (H)
$60 $78 $2 
Foreign currency losses (gains), net5 11 (17)
Net loss from asset sales— — 2 
Interest income(1)(4)(13)
Other, net3 (15)11 
$67 $70 $(15)
In 2020, Other, net includes a $20 benefit for the reversal of a liability previously established at the Separation Date related to a potential indemnification to Howmet Aerospace by Arconic for an outstanding income tax matter in Spain. Under the terms of the Tax Matters Agreement (see Note A) related to the Separation, Arconic was responsible for 34% of the potential loss related to this matter should Howmet Aerospace receive an unfavorable ruling from Spain’s Supreme Court. At the time of Separation, Arconic management believed that the likelihood of the Company performing under the indemnification was probable resulting in a liability being established on Arconic’s opening balance sheet at the Separation Date. In November 2020, a favorable ruling was received from Spain’s Supreme Court bringing a final conclusion to this matter as this decision may not be appealed any further. As no further income tax payment was required of Howmet Aerospace likewise Arconic no longer has a requirement to perform under the indemnification.