Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Name:	us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

SPECIAL CHARGES (GAIN) - Impairment of Long-lived Assets (Details) - Valtech - USD ($) $ in Millions	1 Months Ended		3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2018
Developed technology
Indefinite-lived Intangible Assets [Line Items]
Impairment of intangible assets			$ 40.6
Developed Technology and In-process Research and Development
Indefinite-lived Intangible Assets [Line Items]
Impairment of intangible assets		$ 116.2		$ 116.2
Rest of World \| Developed technology
Indefinite-lived Intangible Assets [Line Items]
Impairment of intangible assets	$ 40.6
Rest of World \| Developed Technology and In-process Research and Development
Indefinite-lived Intangible Assets [Line Items]
Impairment of intangible assets		$ 116.2