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FINANCIAL INSTRUMENTS - Summary of Equity Investment Activity (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($)
Equity investments with readily determinable value (Level 1)
Beginning balance, carrying value	$ 26.9
Ending balance, carrying value	9.7
Level 1
Equity investments with readily determinable value (Level 1)
Beginning balance, carrying value	26.9
Changes in Fair Value	(17.2)
Sales/Purchases	0.0
Ending balance, carrying value	9.7
Level 2
Equity investments without readily determinable value (Level 2)
Beginning balance, carrying value	15.6
Changes in Fair Value	(0.1)
Sales/Purchases	20.0
Ending balance, carrying value	35.5
Prepaids and other current assets | Level 1
Equity investments with readily determinable value (Level 1)
Ending balance, carrying value	9.7
Prepaids and other current assets | Level 2
Equity investments without readily determinable value (Level 2)
Ending balance, carrying value	0.0
Intangible and other assets, net | Level 1
Equity investments with readily determinable value (Level 1)
Ending balance, carrying value	0.0
Intangible and other assets, net | Level 2
Equity investments without readily determinable value (Level 2)
Ending balance, carrying value	$ 35.5

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Equity Securities without Readily Determinable Fair Value, Sales, Purchases and Other Adjustments

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(3)(d))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117546-209714

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714

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