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FAIR VALUE DISCLOSURES - Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - Fair Value, Recurring - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Assets, Fair Value Disclosure [Abstract]
Total assets	$ 247	$ 495
Level 1
Assets, Fair Value Disclosure [Abstract]
Total assets	22	246
Level 2
Assets, Fair Value Disclosure [Abstract]
Total assets	225	249
Level 3
Assets, Fair Value Disclosure [Abstract]
Total assets	0	0
Mutual fund
Assets, Fair Value Disclosure [Abstract]
Marketable securities		200
Mutual fund | Level 1
Assets, Fair Value Disclosure [Abstract]
Marketable securities		200
Mutual fund | Level 2
Assets, Fair Value Disclosure [Abstract]
Marketable securities		0
Mutual fund | Level 3
Assets, Fair Value Disclosure [Abstract]
Marketable securities		0
Corporate debt securities
Assets, Fair Value Disclosure [Abstract]
Marketable securities	166	207
Corporate debt securities | Level 1
Assets, Fair Value Disclosure [Abstract]
Marketable securities	0	0
Corporate debt securities | Level 2
Assets, Fair Value Disclosure [Abstract]
Marketable securities	166	207
Corporate debt securities | Level 3
Assets, Fair Value Disclosure [Abstract]
Marketable securities	0	0
Commercial paper
Assets, Fair Value Disclosure [Abstract]
Marketable securities	28	15
Commercial paper | Level 1
Assets, Fair Value Disclosure [Abstract]
Marketable securities	0	0
Commercial paper | Level 2
Assets, Fair Value Disclosure [Abstract]
Marketable securities	28	15
Commercial paper | Level 3
Assets, Fair Value Disclosure [Abstract]
Marketable securities	0	0
Equity securities
Assets, Fair Value Disclosure [Abstract]
Marketable securities	22	46
Equity securities | Level 1
Assets, Fair Value Disclosure [Abstract]
Marketable securities	22	46
Equity securities | Level 2
Assets, Fair Value Disclosure [Abstract]
Marketable securities	0	0
Equity securities | Level 3
Assets, Fair Value Disclosure [Abstract]
Marketable securities	0	0
Certificates of deposit
Assets, Fair Value Disclosure [Abstract]
Marketable securities	12	5
Certificates of deposit | Level 1
Assets, Fair Value Disclosure [Abstract]
Marketable securities	0	0
Certificates of deposit | Level 2
Assets, Fair Value Disclosure [Abstract]
Marketable securities	12	5
Certificates of deposit | Level 3
Assets, Fair Value Disclosure [Abstract]
Marketable securities	0	0
Asset-backed securities
Assets, Fair Value Disclosure [Abstract]
Marketable securities	5	7
Asset-backed securities | Level 1
Assets, Fair Value Disclosure [Abstract]
Marketable securities	0	0
Asset-backed securities | Level 2
Assets, Fair Value Disclosure [Abstract]
Marketable securities	5	7
Asset-backed securities | Level 3
Assets, Fair Value Disclosure [Abstract]
Marketable securities	0	0
Sovereign bonds
Assets, Fair Value Disclosure [Abstract]
Marketable securities		4
Sovereign bonds | Level 1
Assets, Fair Value Disclosure [Abstract]
Marketable securities		0
Sovereign bonds | Level 2
Assets, Fair Value Disclosure [Abstract]
Marketable securities		4
Sovereign bonds | Level 3
Assets, Fair Value Disclosure [Abstract]
Marketable securities		0
Mortgage loans held for sale pledged under agreements to repurchase
Assets, Fair Value Disclosure [Abstract]
Mortgages held-for-sale	12	7
Mortgage loans held for sale pledged under agreements to repurchase | Level 1
Assets, Fair Value Disclosure [Abstract]
Mortgages held-for-sale	0	0
Mortgage loans held for sale pledged under agreements to repurchase | Level 2
Assets, Fair Value Disclosure [Abstract]
Mortgages held-for-sale	12	7
Mortgage loans held for sale pledged under agreements to repurchase | Level 3
Assets, Fair Value Disclosure [Abstract]
Mortgages held-for-sale	0	0
Mortgage loans held for sale
Assets, Fair Value Disclosure [Abstract]
Mortgages held-for-sale	2	4
Mortgage loans held for sale | Level 1
Assets, Fair Value Disclosure [Abstract]
Mortgages held-for-sale	0	0
Mortgage loans held for sale | Level 2
Assets, Fair Value Disclosure [Abstract]
Mortgages held-for-sale	2	4
Mortgage loans held for sale | Level 3
Assets, Fair Value Disclosure [Abstract]
Mortgages held-for-sale	$ 0	$ 0

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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