DERIVATIVES AND HEDGING - Cash Flow Hedges in AOCI (Details) - Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Derivatives Used in Cash Flow Hedge [Roll Forward]
Cash flow hedges in AOCI, beginning balance	$ 25	$ (43)
Cash flow hedges in AOCI, ending balance	29	25
Currency/Interest Rate
Derivatives Used in Cash Flow Hedge [Roll Forward]
Amount recorded in AOCI - Currency/Interest Rate	9	102
Amount reclassified from AOCI to income - Currency/Interest Rate	$ (5)	$ (34)

Amount, before tax and reclassification adjustment, of unrealized gain (loss) from increase (decrease) in instrument-specific credit risk of financial liability measured under fair value option.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482790/220-10-45-11

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 10A
-Subparagraph (l)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482790/220-10-45-10A

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482736/825-10-45-5

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 30
-Subparagraph (d)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-30

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration