SEGMENT INFORMATION - Adjusted EBITDA, Depreciation & Software Amortization, Other Intangible Amortization for Each Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended
May. 01, 2016	May. 03, 2015
SEGMENT INFORMATION
Adjusted EBITDA	$ 215	$ 189
Depreciation & Software Amortization	21	24
Other Intangible Amortization	4	4
Corporate & Other
SEGMENT INFORMATION
Adjusted EBITDA	(10)	(12)
Depreciation & Software Amortization	4	4
Other Intangible Amortization	2	2
Facilities Maintenance \| Reportable segment
SEGMENT INFORMATION
Adjusted EBITDA	134	122
Depreciation & Software Amortization	8	12
Other Intangible Amortization	1	1
Waterworks \| Reportable segment
SEGMENT INFORMATION
Adjusted EBITDA	48	45
Depreciation & Software Amortization	2	2
Other Intangible Amortization	1	1
Construction & Industrial - White Cap \| Reportable segment
SEGMENT INFORMATION
Adjusted EBITDA	43	34
Depreciation & Software Amortization	$ 7	$ 6

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration