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Other Income, Net Table (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Interest income | $ 21 | $ 7 | $ 1
Loss on extinguishment of debt | 0 | 0 | (73)
Components of net periodic benefit cost other than service cost | 18 | 32 | 18
Reserve for Unsecured Creditors litigation | 0 | (10) | (300)
Costs associated with acquisitions | (14) | (8) | 0
Contingent consideration liability fair value adjustment | (23) | 14 | (3)
Other Nonoperating Income (Expense) | 36 | 8 | 9
Other expense, net | $ 2 | (21) | (384)
Unsecured Creditors Litigation |  |  |
Reserve for Unsecured Creditors litigation |  | $ (10) |
Unsecured Creditors Litigation | Judicial Ruling | Other income (expense), net |  |  |
Reserve for Unsecured Creditors litigation |  |  | $ (300)

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