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STOCK-BASED COMPENSATION - Predecessor Compensation Plan (Details) - USD ($) shares in Millions	2 Months Ended	10 Months Ended	12 Months Ended
	Dec. 31, 2020	Oct. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Compensation Related Costs [Abstract]
Aggregate number of common stock shares authorized for issuance (in shares)			7.3
Number of shares issued or reserved (in shares)			4.7
Number of shares available for future issuance (in shares)			2.6
Stock-based compensation expense	$ 0	$ 3,000,000	$ 32,000,000	$ 45,000,000

X

- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Shares Issued Or Reserved

+ References

No definition available.

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- References

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X

- Definition

Amount of expense for employee benefit and equity-based compensation.

+ References

No definition available.

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X

- Definition

Number of shares authorized for issuance under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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