BUSINESS ACQUISITIONS & DISPOSITIONS Envigo (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Operating Income (Loss)	$ 3,259.5	$ 2,445.4	$ 1,330.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other	3.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	1.6
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	496.9
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	10.8
Payments to Acquire Businesses, Net of Cash Acquired	496.9	267.6	876.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets	3.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	56.6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	198.5
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	572.1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable	2.5
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	3.9
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue	6.6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	75.2
Floating rate secured note receivable due 2022 from the sale of CRP	$ 0.0	$ 0.0	$ 110.0
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	11 years 3 months 18 days
Envigo [Member]
Business Acquisition [Line Items]
Operating Income (Loss)	$ 17.9
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other	25.6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	4.5
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	376.6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	11.3
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	12.1
Payments to Acquire Businesses, Net of Cash Acquired	601.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets	10.8
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	128.4
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	25.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	140.8
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets	9.9
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	745.8
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable	15.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	10.4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue	49.9
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities	69.3
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	144.8
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	$ 601.0
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	11 years
Other acquirees [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other	$ 2.4
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	166.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	4.9
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	1.3
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	121.3
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	296.1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable	0.9
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	22.4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue	1.1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities	4.1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	28.5
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	$ 267.6
Customer Relationships [Member] | Other acquirees [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	11 years
Customer Relationships [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	14 years 1 month 6 days
Customer Relationships [Member] | Envigo [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 141.4
Trade Names [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Trade Names [Member] | Envigo [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 0.6