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Other Income (Expense), Net
 9 Months Ended
Sep. 30, 2020
Other Income and Expenses [Abstract]  
Other Income (Expense), Net OTHER INCOME (EXPENSE), NET
 
    Other, net, which is included in other income (expense), net, was as follows, in millions:
Three Months Ended September 30,Nine Months Ended September 30,
 2020201920202019
Income from cash and cash investments
$— $1 $2 $2 
Equity investment income, net1 1 1 1 
Foreign currency transaction gains (losses)1 (5)(6)(3)
Net periodic pension and post-retirement benefit cost
(9)(6)(25)(17)
Dividend income3 — 7 — 
Other items, net— — (1)— 
Total other, net$(4)$(9)$(22)$(17)