Summary of Significant Accounting Policies - Gift Cards (Details) (USD $) In Millions, unless otherwise specified	11 Months Ended	12 Months Ended
Feb. 02, 2013	Jan. 31, 2015	Feb. 01, 2014
Accounting Policies [Abstract]
Gift Card Redeemability, Determination Period		24 months
Gift card breakage income	$ 46	$ 19	$ 53

The amount of breakage recognized related to unredeemed gift cards. Breakage occurs when a customer pays in advance of vendor performance and does not demand full performance for various reasons.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 13.B.Q1)

-URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Breakage

-URI http://asc.fasb.org/extlink&oid=51574696

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