BUSINESS ACQUISITIONS & DISPOSITIONS DISPOSITIONS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Combination and Asset Acquisition [Abstract]
Payments to Acquire Businesses, Net of Cash Acquired	$ 496,900	$ 267,600	$ 876,000
Finite-lived Intangible Assets Acquired	198,500	121,300
Goodwill, Acquired During Period	$ 298,400	166,200
2020 Acquisitions
Business Combination and Asset Acquisition [Abstract]
Business Acquisition, Pro Forma Revenue		14,032,700	11,717,500
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue		14,032,700	11,717,500
Business Acquisition, Pro Forma Net Income (Loss)		$ 1,564,600	837,600
2019 Acquisitions
Business Combination and Asset Acquisition [Abstract]
Business Acquisition, Pro Forma Revenue			11,742,500
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue			11,742,500
Business Acquisition, Pro Forma Net Income (Loss)			$ 831,400