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OTHER (INCOME) EXPENSE (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Other Income and Expenses [Line Items] |  |  |
Interest Income | $ (107,000,000) | $ (255,000,000) | $ (217,000,000)
Equity income of affiliated companies | (66,000,000) | (52,000,000) | (50,000,000)
Loss (gain) on sale of non-strategic businesses and assets | 3,000,000 | 1,000,000 | 0
Foreign exchange | (68,000,000) | (120,000,000) | (63,000,000)
Separation Costs | 0 | 0 | 321,000,000
Reimbursement receivables charge | 509,000,000 | 0 | 0
Other, net | 12,000,000 | 14,000,000 | 57,000,000
Other (Income) Expense, Total | (675,000,000) | (1,065,000,000) | (1,149,000,000)
Pension Plan [Member] |  |  |
Other Income and Expenses [Line Items] |  |  |
Ongoing income - non-service | (901,000,000) | (606,000,000) | (1,165,000,000)
Other Postretirement Benefit Plans [Member] |  |  |
Other Income and Expenses [Line Items] |  |  |
Ongoing income - non-service | $ (57,000,000) | $ (47,000,000) | $ (32,000,000)

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