RETIREMENT PLANS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Discontinued Operations, Disposed of By Sale | ChampionX
Net periodic benefit costs
Service cost	$ 1.0	$ 1.5	$ 2.5	$ 3.1
U.S. | Pension
Net periodic benefit costs
Service cost	17.1	18.2	34.2	36.4
Interest cost on benefit obligation	17.5	22.3	35.0	44.5
Expected return on plan assets	(38.2)	(37.4)	(76.4)	(74.8)
Recognition of net actuarial (gain) loss	13.0	5.9	26.0	11.8
Amortization of prior service cost (benefit)	(1.8)	(2.9)	(3.8)	(5.7)
Total expense (benefit)	7.6	6.1	15.0	12.2
U.S. | Pension | Non-qualified plan
Other Pension Plan Information
Contributions to plan			5.0
Contributions anticipated to be made during the remainder of 2020	7.0		7.0
U.S. | Postretirement Health Care
Net periodic benefit costs
Service cost	0.3	0.3	0.6	0.7
Interest cost on benefit obligation	1.1	1.4	2.1	2.8
Expected return on plan assets	(0.1)	(0.1)	(0.2)	(0.2)
Recognition of net actuarial (gain) loss		(1.0)	0.1	(2.0)
Amortization of prior service cost (benefit)	(2.8)	(5.8)	(5.5)	(11.6)
Total expense (benefit)	(1.5)	(5.2)	(2.9)	(10.3)
Other Pension Plan Information
Contributions to plan			6.0
Contributions anticipated to be made during the remainder of 2020	6.0		6.0
International | Pension
Net periodic benefit costs
Service cost	7.7	7.5	15.3	15.2
Interest cost on benefit obligation	5.3	7.9	10.6	15.8
Expected return on plan assets	(15.4)	(15.2)	(31.0)	(30.4)
Recognition of net actuarial (gain) loss	6.3	4.2		8.2
Amortization of prior service cost (benefit)		(0.2)	12.6	(0.5)
Total expense (benefit)	3.9	$ 4.2	7.5	$ 8.3
Other Pension Plan Information
Contributions to plan			23.0
Contributions anticipated to be made during the remainder of 2020	$ 20.0		$ 20.0