GOVERNMENT GRANTS AND OTHER ASSISTANCE (Details) - COVID-19 - USD ($) $ in Millions	9 Months Ended	15 Months Ended
Sep. 30, 2021	Mar. 31, 2021
Unusual or Infrequent Item, or Both [Line Items]
Government grant and other assistance benefit recognized		$ 131
Grants receivable		$ 28
Expense related to the return of government assistance	$ 137

Carrying amount as of the balance sheet date of amounts due under the terms of governmental, corporate, or foundation grants. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_GrantsReceivableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant