OPERATING SEGMENTS (Details) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) segment	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Financial information of reportable segments
Number of operating segments aggregated for classification as reportable segments | segment			8
Number of operating units | segment			10
Number of reportable segments | segment			3
Net sales	$ 3,386.1	$ 3,446.4	$ 9,800.7	$ 10,133.1	$ 13,545.1
Operating Income (Loss)	574.1	413.0	1,358.1	1,238.5	$ 1,561.3
SIMADI | VENEZUELA
Financial information of reportable segments
Exchange rate					200
Previously Reported
Financial information of reportable segments
Net sales					$ 13,545.1
Operating Income (Loss)					$ 1,561.3
Previously Reported | VENEZUELA
Financial information of reportable segments
Exchange rate					6.3
Operating segment
Financial information of reportable segments
Net sales	3,319.7	3,282.7	9,647.6	9,572.2	$ 12,914.3
Operating Income (Loss)	564.0	375.9	1,334.2	1,120.6	1,432.2
Operating segment | Previously Reported
Financial information of reportable segments
Net sales					13,850.1
Operating Income (Loss)					1,605.3
Operating segment | Adjustment | Fixed Currency Rate Change
Financial information of reportable segments
Net sales					(783.2)
Operating Income (Loss)					(112.3)
Operating segment | Adjustment | Venezuela Bolivar Impact
Financial information of reportable segments
Net sales					(152.6)
Operating Income (Loss)					(60.8)
Operating segment | Global Industrial
Financial information of reportable segments
Net sales	1,185.2	1,168.0	3,416.5	3,308.9	4,485.5
Operating Income (Loss)	199.8	179.7	499.8	430.2	626.4
Operating segment | Global Industrial | Previously Reported
Financial information of reportable segments
Net sales					4,857.8
Operating Income (Loss)					692.7
Operating segment | Global Industrial | Adjustment | Fixed Currency Rate Change
Financial information of reportable segments
Net sales					(332.8)
Operating Income (Loss)					(48.7)
Operating segment | Global Industrial | Adjustment | Venezuela Bolivar Impact
Financial information of reportable segments
Net sales					(48.4)
Operating Income (Loss)					(19.6)
Operating segment | Global Industrial | Adjustment | Other
Financial information of reportable segments
Net sales					8.9
Operating Income (Loss)					2.0
Operating segment | Global Institutional
Financial information of reportable segments
Net sales	1,163.4	1,092.4	3,354.4	3,121.7	4,210.9
Operating Income (Loss)	266.8	256.9	707.9	651.7	876.6
Operating segment | Global Institutional | Previously Reported
Financial information of reportable segments
Net sales					4,393.2
Operating Income (Loss)					900.7
Operating segment | Global Institutional | Adjustment | Fixed Currency Rate Change
Financial information of reportable segments
Net sales					(170.5)
Operating Income (Loss)					(22.8)
Operating segment | Global Institutional | Adjustment | Venezuela Bolivar Impact
Financial information of reportable segments
Net sales					(3.6)
Operating Income (Loss)					(0.3)
Operating segment | Global Institutional | Adjustment | Other
Financial information of reportable segments
Net sales					(8.2)
Operating Income (Loss)					(1.0)
Operating segment | Global Energy
Financial information of reportable segments
Net sales	760.6	827.3	2,275.2	2,585.7	3,470.8
Operating Income (Loss)	100.9	111.1	238.8	325.2	465.5
Operating segment | Global Energy | Previously Reported
Financial information of reportable segments
Net sales					3,825.7
Operating Income (Loss)					550.7
Operating segment | Global Energy | Adjustment | Fixed Currency Rate Change
Financial information of reportable segments
Net sales					(253.6)
Operating Income (Loss)					(44.2)
Operating segment | Global Energy | Adjustment | Venezuela Bolivar Impact
Financial information of reportable segments
Net sales					(100.6)
Operating Income (Loss)					(40.9)
Operating segment | Global Energy | Adjustment | Other
Financial information of reportable segments
Net sales					(0.7)
Operating Income (Loss)					(0.1)
Operating segment | Other
Financial information of reportable segments
Net sales	210.5	195.0	601.5	555.9	747.1
Operating Income (Loss)	41.3	37.0	110.2	91.9	127.5
Operating segment | Other | Previously Reported
Financial information of reportable segments
Net sales					773.4
Operating Income (Loss)					132.0
Operating segment | Other | Adjustment | Fixed Currency Rate Change
Financial information of reportable segments
Net sales					(26.3)
Operating Income (Loss)					(3.6)
Operating segment | Other | Adjustment | Other
Financial information of reportable segments
Operating Income (Loss)					(0.9)
Currency Impact
Financial information of reportable segments
Net sales	66.4	163.7	153.1	560.9	630.8
Operating Income (Loss)	10.1	37.1	23.9	117.9	129.1
Currency Impact | Previously Reported
Financial information of reportable segments
Net sales					(305.0)
Operating Income (Loss)					(44.0)
Currency Impact | Adjustment | Fixed Currency Rate Change
Financial information of reportable segments
Net sales					783.2
Operating Income (Loss)					112.3
Currency Impact | Adjustment | Venezuela Bolivar Impact
Financial information of reportable segments
Net sales					152.6
Operating Income (Loss)					60.8
Corporate
Financial information of reportable segments
Operating Income (Loss)	$ (44.8)	$ (208.8)	(222.5)	$ (378.4)	(663.8)
Corporate | Previously Reported
Financial information of reportable segments
Operating Income (Loss)					(670.8)
Corporate | Adjustment | Fixed Currency Rate Change
Financial information of reportable segments
Operating Income (Loss)					$ 7.0
Intersegment
Financial information of reportable segments
Net sales			$ 0.0