SEGMENT INFORMATION - Net Sales for Each Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2017	May 01, 2016
SEGMENT INFORMATION
Net Sales	$ 1,873	$ 1,781
Corporate
SEGMENT INFORMATION
Net Sales	(2)	(2)
Facilities Maintenance | Reportable segment
SEGMENT INFORMATION
Net Sales	682	677
Waterworks business | Reportable segment
SEGMENT INFORMATION
Net Sales	657	605
Construction & Industrial | Reportable segment
SEGMENT INFORMATION
Net Sales	$ 536	$ 501