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EQUITY - Narrative (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	Dec. 31, 2020	Oct. 31, 2020	Oct. 27, 2020
Equity [Abstract]
New common stock issued (in shares)	83.3	83.3	83.3
Shares reserved for future issuance (in shares)	9.3		4.4
Warrants exercisable			5.00%
Warrant exercise price (in dollars per share)			$ 36
Expected term (in years)			4 years
Pension and post-retirement adjustments		$ 23
Outstanding common stock	1.00%

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Outstanding Common Stock Percentage

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Plan Of Reorganization Common Stock Capital Shares Reserved For Future Issuance

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Plan Of Reorganization Common Stock Shares New Issues

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Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (j)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580

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-Section 45
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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

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Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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