DEBT - Short-term Borrowings (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Debt Instrument [Line Items]
Short-term borrowings	$ 2,012.0	$ 763.5	$ 762.1
Commercial Paper
Debt Instrument [Line Items]
Short-term borrowings	2,012.0	763.5	762.1
Domestic commercial paper | Commercial Paper
Debt Instrument [Line Items]
Short-term borrowings	$ 1,708.8	$ 739.9	$ 758.9
Weighted average interest rate	1.70%	0.30%	0.20%
Revolving credit facility | Commercial Paper
Debt Instrument [Line Items]
Short-term borrowings	$ 250.0	$ 0.0	$ 0.0
Weighted average interest rate	2.60%	0.00%	0.00%
Foreign facilities | Commercial Paper
Debt Instrument [Line Items]
Short-term borrowings	$ 53.2	$ 23.6	$ 3.2
Weighted average interest rate	6.50%	9.50%	4.00%