RETIREMENT PLANS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other (income) expense
Other Pension Plan Information
Settlement expense before tax		$ 51.6	$ 35.3
Settlement expense after tax		38.9	26.8
U.S. Pension. | Pension
Net periodic benefit costs
Service cost	$ 40.9	40.8
Interest cost on benefit obligation	88.1	65.3
Expected return on plan assets	(145.1)
Recognition of net actuarial loss (gain)	0.2
Amortization of prior service benefit	(4.5)
Total expense	(20.4)
U.S. Pension. | U.S. Postretirement Benefits
Net periodic benefit costs
Service cost	0.4	0.8	31.4
Interest cost on benefit obligation	5.6	3.3	17.3
Expected return on plan assets			(70.7)
Recognition of net actuarial loss (gain)			28.7
Amortization of prior service benefit			(0.1)
Curtailments and settlements			3.5
Total expense			$ 10.1
International Pension | Pension
Net periodic benefit costs
Service cost	21.7	28.4
Interest cost on benefit obligation	$ 45.9	$ 22.0