REVENUES - Principal Activities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Disaggregation of revenue
Net sales	$ 2,685.7	$ 3,169.1	$ 5,706.3	$ 6,093.8	$ 12,562.0
Global Industrial
Disaggregation of revenue
Net sales	1,425.2	1,501.0	2,859.2	2,902.2
Global Institutional
Disaggregation of revenue
Net sales	708.1	1,110.4	1,775.1	2,131.2
Global Healthcare and Life Sciences
Disaggregation of revenue
Net sales	298.5	251.9	542.3	479.4
Other
Disaggregation of revenue
Net sales	241.6	305.8	517.4	581.0
Corporate
Disaggregation of revenue
Net sales	12.3		12.3
Product and sold equipment
Disaggregation of revenue
Net sales	2,167.1	2,560.0	4,591.1	4,919.8
Product and sold equipment | Global Industrial
Disaggregation of revenue
Net sales	1,231.3	1,301.0	2,463.3	2,513.5
Product and sold equipment | Global Institutional
Disaggregation of revenue
Net sales	596.4	937.6	1,485.0	1,792.9
Product and sold equipment | Global Healthcare and Life Sciences
Disaggregation of revenue
Net sales	271.9	230.9	494.0	440.5
Product and sold equipment | Other
Disaggregation of revenue
Net sales	55.2	90.5	136.5	172.9
Product and sold equipment | Corporate
Disaggregation of revenue
Net sales	12.3		12.3
Service and lease equipment
Disaggregation of revenue
Net sales	518.6	609.1	1,115.2	1,174.0
Service and lease equipment | Global Industrial
Disaggregation of revenue
Net sales	193.9	200.0	395.9	388.7
Service and lease equipment | Global Institutional
Disaggregation of revenue
Net sales	111.7	172.8	290.1	338.3
Service and lease equipment | Global Healthcare and Life Sciences
Disaggregation of revenue
Net sales	26.6	21.0	48.3	38.9
Service and lease equipment | Other
Disaggregation of revenue
Net sales	186.4	215.3	380.9	408.1
North America | Global Industrial
Disaggregation of revenue
Net sales	658.0	710.3	1,349.6	1,383.8
North America | Global Institutional
Disaggregation of revenue
Net sales	492.7	812.2	1,272.3	1,552.3
North America | Global Healthcare and Life Sciences
Disaggregation of revenue
Net sales	104.6	103.3	212.6	203.2
North America | Other
Disaggregation of revenue
Net sales	152.6	188.2	320.9	$ 354.8
North America | Corporate
Disaggregation of revenue
Net sales	12.3		$ 12.3
U.S.
Disaggregation of revenue
Percentage of consolidated sales			53.00%	54.00%
Europe | Global Industrial
Disaggregation of revenue
Net sales	308.6	305.8	$ 589.8	$ 582.8
Europe | Global Institutional
Disaggregation of revenue
Net sales	106.1	157.6	248.6	300.7
Europe | Global Healthcare and Life Sciences
Disaggregation of revenue
Net sales	171.9	137.6	292.1	257.4
Europe | Other
Disaggregation of revenue
Net sales	45.3	66.7	105.0	125.1
Asia Pacific | Global Industrial
Disaggregation of revenue
Net sales	184.7	191.4	368.4	373.1
Asia Pacific | Global Institutional
Disaggregation of revenue
Net sales	46.0	59.2	106.0	115.2
Asia Pacific | Global Healthcare and Life Sciences
Disaggregation of revenue
Net sales	13.4	4.6	23.9	8.2
Asia Pacific | Other
Disaggregation of revenue
Net sales	15.1	17.9	33.2	36.0
Latin America | Global Industrial
Disaggregation of revenue
Net sales	115.9	130.7	245.0	255.9
Latin America | Global Institutional
Disaggregation of revenue
Net sales	30.3	40.3	70.1	79.8
Latin America | Global Healthcare and Life Sciences
Disaggregation of revenue
Net sales	1.8	1.2	2.8	2.2
Latin America | Other
Disaggregation of revenue
Net sales	10.8	12.1	22.8	24.5
Greater China | Global Industrial
Disaggregation of revenue
Net sales	78.2	82.5	152.4	149.9
Greater China | Global Institutional
Disaggregation of revenue
Net sales	10.6	13.2	22.0	24.1
Greater China | Global Healthcare and Life Sciences
Disaggregation of revenue
Net sales	5.7	4.6	9.2	7.4
Greater China | Other
Disaggregation of revenue
Net sales	3.0	4.4	7.2	8.5
Middle East and Africa ("MEA") | Global Industrial
Disaggregation of revenue
Net sales	79.8	80.3	154.0	156.7
Middle East and Africa ("MEA") | Global Institutional
Disaggregation of revenue
Net sales	22.4	27.9	56.1	59.1
Middle East and Africa ("MEA") | Global Healthcare and Life Sciences
Disaggregation of revenue
Net sales	1.1	0.6	1.7	1.0
Middle East and Africa ("MEA") | Other
Disaggregation of revenue
Net sales	$ 14.8	$ 16.5	$ 28.3	$ 32.1