NET LOSS PER SHARE - Anti dilutive securities (Details) shares in Millions	12 Months Ended
Dec. 31, 2021 shares
Securities not included in the computation of diluted earnings (loss) per share
Anti dilutive securities	15.8
RSUs
Securities not included in the computation of diluted earnings (loss) per share
Anti dilutive securities	10.2
Performance awards
Securities not included in the computation of diluted earnings (loss) per share
Anti dilutive securities	1.8
Stock options
Securities not included in the computation of diluted earnings (loss) per share
Anti dilutive securities	3.8

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration