QUARTERLY FINANCIAL DATA (UNAUDITED) - Tax Settlement with IRS (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Aug. 02, 2015	May 03, 2015	Jan. 29, 2017	Jan. 31, 2016	Feb. 01, 2015
QUARTERLY FINANCIAL DATA (UNAUDITED)
Income tax benefit		$ 189		$ 189
Loss on extinguishment & modification of debt	$ 100		$ 179	$ 100	$ 108

Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 25
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=68052875&loc=d3e28446-109314

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 25
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=68052875&loc=d3e28511-109314

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration