INTANGIBLES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Intangible Assets Disclosure [Line Items]
Trade names	$ 623.1	$ 582.8
Intangible assets, amortization expense	$ 238.4	$ 39.8	$ 36.5
Trade names
Intangible Assets Disclosure [Line Items]
Intangible assets, weighted average useful life (years)	5 years
Backlog
Intangible Assets Disclosure [Line Items]
Intangible assets, weighted average useful life (years)	14 years
Intellectual property
Intangible Assets Disclosure [Line Items]
Intangible assets, weighted average useful life (years)	9 years
Customer relationships
Intangible Assets Disclosure [Line Items]
Intangible assets, weighted average useful life (years)	18 years
Other intangible assets
Intangible Assets Disclosure [Line Items]
Intangible assets, weighted average useful life (years)	13 years