RESTRUCTURING CHARGES - Restructuring and Related Charges Activity (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Total Restructuring Charges
Restructuring Reserve [Roll Forward]
Charges incurred during period	$ 5.0
RGGA Program
Restructuring Reserve [Roll Forward]
Charges incurred through beginning of period	101.9
Charges incurred during period	8.1
Charges incurred through end of period	110.0
RGGA Program | Total Restructuring Charges
Restructuring Reserve [Roll Forward]
Charges incurred through beginning of period	76.6
Charges incurred during period	5.0
Charges incurred through end of period	81.6
RGGA Program | Employee Severance and Other Personnel Benefits
Restructuring Reserve [Roll Forward]
Charges incurred through beginning of period	52.7
Charges incurred during period	1.2
Charges incurred through end of period	53.9
RGGA Program | Other
Restructuring Reserve [Roll Forward]
Charges incurred through beginning of period	23.9
Charges incurred during period	3.8
Charges incurred through end of period	27.7
RGGA Program | Leases
Restructuring Reserve [Roll Forward]
Charges incurred through beginning of period	17.7
Charges incurred during period	3.2
Charges incurred through end of period	20.9
RGGA Program | Other Related Charges
Restructuring Reserve [Roll Forward]
Charges incurred through beginning of period	7.6
Charges incurred during period	(0.1)
Charges incurred through end of period	$ 7.5