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INCOME TAXES (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Income Tax Disclosure [Abstract] |  |  |  |
Effective income tax rate, continuing operations (in percent) | 9.00% | 6.00% | 16.00% | 45.00%
Unrecognized tax benefits, Income tax penalties and Interest expense | $ 55 |  | $ 55 |
Effective tax rate includes net discrete tax benefit | $ 20 |  | 20 |
Discrete tax benefit |  |  | $ 24 |
Restructuring, merger, acquisition and divestiture expense |  |  |  | $ 94
Tax benefit recognized on restructuring expense |  |  |  | 9
DTA, impairment losses |  | $ 26 |  | 26
Tax benefits related to other one-time adjustments |  |  |  | $ 10
Restructuring, merger, acquisition, divestiture expenses, and asset impairment costs |  | 75 |  |
Tax benefits recognized |  | $ 5 |  |

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- Definition Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319 + Details
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- Definition Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123452999&loc=d3e28511-109314 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123452999&loc=d3e28446-109314 + Details
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