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DESCRIPTION OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES - Summary of Amounts Capitalized and Amortized (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |
Capitalized | $ 28 | $ 29 | $ 45
Amortized | $ 25 | $ 19 | $ 10

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- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123353750&loc=SL49131252-203054 + Details
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