SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Receivables Sold (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Gross receivables sold/cash proceeds received	$ 1,319	$ 852
Collections reinvested under revolving agreement	1,372	779
Net cash proceeds (remitted) received	$ (53)	$ 73

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- Definition

Proceeds from securitizations of receivables treated as collateralized borrowings, which are classified as financing transactions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

+ Details

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- Definition

Proceeds from (repayments of) securitizations of receivables treated as collateralized borrowings, which are classified as financing transactions.

+ References

No definition available.

+ Details

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- Definition

Repayments of securitizations of receivables treated as collateralized borrowings, which are classified as financing transactions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

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