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Restructuring and Other Charges - Schedule of Restructuring and Other Charges (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Nov. 01, 2016 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Restructuring and Related Activities [Abstract] |  |  |  |
Asset impairments | $ 0 | $ 13,000,000 | $ 58,000,000 | $ 80,000,000
Layoff costs |  | 20,000,000 | 64,000,000 | 68,000,000
Pension and Other postretirement benefits - net settlement and curtailment charges |  | 91,000,000 | 0 | 2,000,000
Net (gain) loss on divestitures of assets and businesses (T) |  | (109,000,000) | 57,000,000 | 3,000,000
Other |  | 13,000,000 | (3,000,000) | 27,000,000
Reversals of previously recorded layoff costs |  | (19,000,000) | (11,000,000) | (25,000,000)
Restructuring and other charges |  | $ 9,000,000 | $ 165,000,000 | $ 155,000,000

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- Definition Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684 + Details
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