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Other Financial Data - Schedule of Other Income (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Other Financial Data [Abstract] |  |  |
Foreign currency remeasurement | $ 25 | $ (37) | $ (2)
Disposal of business | (6) | (16) | 39
Pension and other postretirement | 1 | (86) | (173)
Equity earnings | 4 | 12 | 13
Financial instruments | (49) | 2 | (14)
Other income | $ (25) | $ (125) | $ (137)

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