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OTHER OPERATING EXPENSE, NET - Other Operating Expense, Net (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Other Income and Expenses [Abstract] |  |  |  |
Restructuring expense | $ 51 | $ 20 | $ 143 | $ 72
Merger, acquisition and divestiture expense | 8 | 16 | 36 | 58
Loss on sale | 0 | 0 | 7 | 0
Asset impairments | 0 | 0 | 0 | 17
Net gain on insurance recovery for property damage | (1) | (3) | (3) | (9)
Other income, net | (4) | (4) | (10) | (5)
Other operating expense, net | $ 54 | $ 29 | $ 173 | $ 133

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123351718&loc=d3e2420-110228 + Details
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- Definition The net amount (to the extent disclosed within this portion of the income statement) by which an insurance settlement exceeds incremental costs incurred from the event causing an interruption of business, plus the insurance award for earnings lost from the event, such as a natural catastrophe, explosion or fire. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=114868897&loc=SL114872001-224240 + Details
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