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LONG-TERM DEBT - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2020	Jun. 29, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total	$ 4,239.4		$ 4,429.3
Current portion of long-term debt	447.2		95.7
Long-term debt	3,792.2		4,333.6
Fair Value
Debt Instrument [Line Items]
Total	4,667.6		4,655.4
Current portion of long-term debt	447.2		95.7
Long-term debt	4,220.4		4,559.7
Other Borrowings
Debt Instrument [Line Items]
Total	113.2		32.4
Other Borrowings | Fair Value
Debt Instrument [Line Items]
Total	$ 113.1		32.4
U.S. Dollar-Denominated Term Loans | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Effective interest rate (as a percent)	2.20%
Total	$ 645.1		684.7
Unamortized debt issuance cost	0.9		1.1
U.S. Dollar-Denominated Term Loans | Line of Credit | Revolving Credit Facility | Fair Value
Debt Instrument [Line Items]
Total	$ 645.1		684.7
Multi-Currency Revolving Loan Facility | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Effective interest rate (as a percent)	0.00%
Total	$ 0.0		231.5
Unamortized debt issuance cost	0.8		0.9
Multi-Currency Revolving Loan Facility | Line of Credit | Revolving Credit Facility | Fair Value
Debt Instrument [Line Items]
Total	$ 0.0		231.5
Floating Rate Notes due 2021 | Senior Notes
Debt Instrument [Line Items]
Effective interest rate (as a percent)	0.00%
Total	$ 0.0		498.0
Unamortized debt issuance cost	0.0		2.0
Floating Rate Notes due 2021 | Senior Notes | Fair Value
Debt Instrument [Line Items]
Total	$ 0.0		500.0
4.375% Senior Notes, due 2023 | Senior Notes
Debt Instrument [Line Items]
Effective interest rate (as a percent)	4.50%
Total	$ 249.3		249.1
Unamortized debt issuance cost	$ 0.7		0.9
Stated interest rate (as a percent)	4.375%
4.375% Senior Notes, due 2023 | Senior Notes | Fair Value
Debt Instrument [Line Items]
Total	$ 267.0		263.9
4.15% Senior Notes due 2024 | Senior Notes
Debt Instrument [Line Items]
Effective interest rate (as a percent)	4.60%
Total	$ 745.7		744.3
Unamortized debt issuance cost	$ 4.3		5.7
Stated interest rate (as a percent)	4.15%
4.15% Senior Notes due 2024 | Senior Notes | Fair Value
Debt Instrument [Line Items]
Total	$ 817.3		805.5
3.20% Senior Notes due 2028 | Senior Notes
Debt Instrument [Line Items]
Effective interest rate (as a percent)	3.40%
Total	$ 495.6		0.0
Unamortized debt issuance cost	$ 4.4		0.0
Stated interest rate (as a percent)	3.20%	3.20%
3.20% Senior Notes due 2028 | Senior Notes | Fair Value
Debt Instrument [Line Items]
Total	$ 533.4		0.0
3.45% Senior Notes due 2026 | Senior Notes
Debt Instrument [Line Items]
Effective interest rate (as a percent)	3.50%
Total	$ 748.7		748.5
Unamortized debt issuance cost	$ 1.3		1.5
Stated interest rate (as a percent)	3.45%
3.45% Senior Notes due 2026 | Senior Notes | Fair Value
Debt Instrument [Line Items]
Total	$ 819.5		759.1
4.70% Senior Notes Due 2028 | Senior Notes
Debt Instrument [Line Items]
Effective interest rate (as a percent)	5.00%
Total	$ 1,241.8		1,240.8
Unamortized debt issuance cost	$ 8.2		9.3
Stated interest rate (as a percent)	4.70%
4.70% Senior Notes Due 2028 | Senior Notes | Fair Value
Debt Instrument [Line Items]
Total	$ 1,472.2		$ 1,378.3

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