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Other Income and Expense - Other Expense (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Schedule of other expense [Line Items] |  |  |  |  |
Gain (Loss) on Disposition of Assets |  |  |  | $ (21) | $ (23)
Other Expenses |  | $ 9 | $ 29 | 35 | 42
Other Expense [Member] |  |  |  |  |
Schedule of other expense [Line Items] |  |  |  |  |
Gain (Loss) on Disposition of Assets | [1] | 5 | 20 | 19 | 25
Defined Benefit Plan, Other Cost (Credit) |  | 4 | 1 | 13 | 7
Other Nonoperating Expense |  | 0 | 8 | 3 | 10
Other Expenses |  | $ 9 | $ 29 | $ 35 | $ 42
[1] | (2) Associated with a loss due to damage from a lightning incident at the Andres facility in the Dominican Republic in September 2018 and the disposal of tunnel lining at Changuinola in 2019.

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